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general description the max6173?ax6177 are low-noise, high-precision voltage references. the devices feature a proprietary temperature-coefficient curvature-correction circuit and laser-trimmed thin-film resistors that result in a very low 3ppm/ c temperature coefficient and excellent 0.06% initial accuracy. the max6173?ax6177 provide a temp output where the output voltage is proportional to the die temperature, making the devices suitable for a wide variety of temperature-sensing applications. the devices also provide a trim input, allowing fine trimming of the output voltage with a resistive divider network. low temperature drift and low noise make the devices ideal for use with high-resolution a/d or d/a converters. the max6173?ax6177 provide accurate preset +2.5v, +3.3v, +4.096v, +5.0v, and +10v reference voltages and accept input voltages up to +40v. the devices draw 320? (typ) of supply current and source 30ma or sink 2ma of load current. the max6173?ax6177 use bandgap technology for low-noise performance and excellent accuracy. the max6173?ax6177 do not require an output bypass capacitor for stability, and are stable with capacitive loads up to 100?. eliminating the output bypass capacitor saves valuable board area in space-critical applications. the max6173?ax6177 are available in an 8-pin so package and operate over the automotive (-40 c to +125 c) temperature range. applications a/d converters voltage regulators d/a converters threshold detectors digital voltmeters features ? wide (v out + 2v) to +40v supply voltage range ? excellent temperature stability: 3ppm/ c (max) ? tight initial accuracy: 0.05% (max) ? low noise: 3.8? p-p (typ at 2.5v output) ? sources up to 30ma output current ? low supply current: 450? (max at +25 c) ? linear temperature transducer voltage output ? +2.5v, +3.3v, +4.096v, +5.0v, or +10v output voltages ? wide operating temperature range: -40 c to +125 c ? no external capacitors required for stability ? short-circuit protected max6173?ax6177 high-precision voltage references with temperature sensor ________________________________________________________________ maxim integrated products 1 19-3249; rev 0; 5/04 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. pin configuration appears at end of data sheet. ordering information/selector guide part temp range pin- package output voltage (v) temperature coefficient (ppm/ c) -40 c to +125 c initial accuracy (%) max6173 aasa -40 c to +125 c 8 so 2.500 3 0.06 max6173basa -40 c to +125 c 8 so 2.500 10 0.10 max6174 aasa -40 c to +125 c 8 so 4.096 3 0.06 max6174basa -40 c to +125 c 8 so 4.096 10 0.10 max6175 aasa -40 c to +125 c 8 so 5.000 3 0.06 max6175basa -40 c to +125 c 8 so 5.000 10 0.10 max6176 aasa -40 c to +125 c 8 so 10.000 3 0.05 max6176basa -40 c to +125 c 8 so 10.000 10 0.10 max6177 aasa -40 c to +125 c 8 so 3.300 3 0.06 max6177basa -40 c to +125 c 8 so 3.300 10 0.10 in out gnd *optional. * * * (v out + 2v) to 40v input reference output trim temp max6173?ax6177 typical operating circuit
max6173?ax6177 high-precision voltage references with temperature sensor 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. in to gnd ...............................................................-0.3v to +42v out, trim, temp to gnd...........................-0.3v to (v in + 0.3v) output short circuit to gnd .....................................................5s continuous power dissipation (t a = +70 c) 8-pin so (derate 5.9mw/ c above +70 c) ..................471mw operating temperature range ........................-40 c to +125 c junction temperature .....................................................+150 c storage temperature range ............................-65 c to +150 c lead temperature (soldering, 10s) ................................+300 c electrical characteristics?ax6173 (v out = 2.5v) (v in = +5v, t a = -40 c to +125 c, unless otherwise noted. typical values are at t a = +25 c.) (note 1) parameter symbol conditions min typ max units output max6173a (0.06%) 2.4985 2.5 2.5015 output voltage v out no load, t a = +25 c max6173b (0.1%) 2.4975 2.5 2.5025 v output adjustment range ? v trim r pot = 10k ? 3 6% max6173aasa 1.5 3 output-voltage temperature coefficient (note 2) tcv out t a = -40 c to +125 c max6173basa 3 10 ppm/ c t a = +25 c 0.6 5 line regulation (note 3) ? v out / ? v in 4.5v v in 40v t a = -40 c to +125 c 0.8 10 ppm/v t a = +25 c210 sourcing: 0 i out 10ma t a = -40 c to +125 c215 t a = +25 c50 500 load regulation (note 3) ? v out / ? i out sinking: -0.6ma i out 0 t a = -40 c to +125 c90 900 ppm/ma out shorted to gnd 60 output short-circuit current i sc out shorted to in 3 ma temperature hysteresis (note 4) ? v out / cycle 120 ppm long-term stability ? v out / time 1000 hours at t a = +25 c 50 ppm dynamic f = 0.1hz to 10hz 3.8 ? p-p noise voltage e out f = 10hz to 1khz 6.8 ? rms turn-on settling time t r to v out = 0.1% of final value, c out = 50pf 150 ? input supply voltage range v in guaranteed by line regulation test 4.5 40.0 v t a = +25 c 300 450 quiescent supply current i in no load t a = -40 c to +125 c 600 ? temp output temp output voltage v temp 570 mv temp temperature coefficient tc temp 1.9 mv/ c
max6173?ax6177 high-precision voltage references with temperature sensor _______________________________________________________________________________________ 3 electrical characteristics?ax6177 (v out = 3.3v) (v in = +10v, t a = -40 c to +125 c, unless otherwise noted. typical values are at t a = +25 c.) (note 1) parameter symbol conditions min typ max units output max6177a (0.06%) 3.2980 3.3 3.3020 output voltage v out no load, t a = +25 c max6177b (0.1%) 3.2967 3.3 3.3033 v output adjustment range ? v trim r pot = 10k ? 3 6% max6177aasa 1.5 3 output-voltage temperature coefficient (note 2) tcv out t a = -40 c to +125 c max6177basa 3 10 ppm/ c t a = +25 c 0.6 5 line regulation (note 3) ? v out / ? v in 5.3v v in 40v t a = -40 c to +125 c 0.8 10 ppm/v t a = +25 c210 sourcing: 0 i out 10ma t a = -40 c to +125 c215 t a = +25 c50 500 load regulation (note 3) ? v out / ? i out sinking: -0.6ma i out 0 t a = -40 c to +125 c90 900 ppm/ ma out shorted to gnd 60 output short-circuit current i sc out shorted to in 3 ma temperature hysteresis (note 4) ? v out / cycle 120 ppm long-term stability ? v out / time 1000 hours at t a = +25 c50 ppm dynamic f = 0.1hz to 10hz 5 ? p-p noise voltage e out f = 10hz to 1khz 9.3 ? rms turn-on settling time t r to v out = 0.1% of final value, c out = 50pf 180 ? input supply voltage range v in guaranteed by line regulation test 5.3 40.0 v t a = +25 c 320 500 quiescent supply current i in no load t a = -40 c to +125 c 650 ? temp output temp output voltage v temp 630 mv temp temperature coefficient tc temp 2.1 mv/ c
max6173?ax6177 high-precision voltage references with temperature sensor 4 _______________________________________________________________________________________ electrical characteristics?ax6174 (v out = 4.096v) (v in = +10v, t a = -40 c to +125 c, unless otherwise noted. typical values are at t a = +25 c.) (note 1) parameter symbol conditions min typ max units output max6174a (0.06%) 4.0935 4.096 4.0985 output voltage v out no load, t a = +25 c max6174b (0.1%) 4.0919 4.096 4.1001 v output adjustment range ? v trim r pot = 10k ? 3 6% max6174aasa 1.5 3 output-voltage temperature coefficient (note 2) tcv out t a = -40 c to +125 c max6174basa 3 10 ppm/ c t a = +25 c 0.6 5 line regulation (note 3) ? v out / ? v in 6.1v v in 40v t a = -40 c to +125 c 0.8 10 ppm/v t a = +25 c210 sourcing: 0 i out 10ma t a = -40 c to +125 c215 t a = +25 c 50 500 load regulation (note 3) ? v out / ? i out sinking: -0.6ma i out 0 t a = -40 c to +125 c 90 900 ppm/ma out shorted to gnd 60 output short-circuit current i sc out shorted to in 3 ma temperature hysteresis (note 4) ? v out / cycle 120 ppm long-term stability ? v out / time 1000 hours at t a = +25 c 50 ppm dynamic f = 0.1hz to 10hz 7 ? p-p noise voltage e out f = 10hz to 1khz 11.5 ? rms turn-on settling time t r to v out = 0.1% of final value, c out = 50pf 200 ? input supply voltage range v in guaranteed by line regulation test 6.1 40.0 v t a = +25 c 320 500 quiescent supply current i in no load t a = -40 c to +125 c 650 ? temp output temp output voltage v temp 630 mv temp temperature coefficient tc temp 2.1 mv/ c
max6173?ax6177 high-precision voltage references with temperature sensor _______________________________________________________________________________________ 5 electrical characteristics?ax6175 (v out = 5.0v) (v in = +15v, t a = -40 c to +125 c, unless otherwise noted. typical values are at t a = +25 c.) (note 1) parameter symbol conditions min typ max units output max6175a (0.06%) 4.9970 5.0 5.0030 output voltage v out no load, t a = +25 c max6175b (0.1%) 4.9950 5.0 5.0050 v output adjustment range ? v trim r pot = 10k ? 3 6% max6175aasa 1.5 3 output-voltage temperature coefficient (note 2) tcv out t a = -40 c to +125 c max6175basa 3 10 ppm/ c t a = +25 c 0.6 5 line regulation (note 3) ? v out / ? v in 7v v in 40v t a = -40 c to +125 c 0.8 10 ppm/v t a = +25 c210 sourcing: 0 i out 10ma t a = -40 c to +125 c215 t a = +25 c50 500 load regulation (note 3) ? v out / ? i out sinking: -0.6ma i out 0 t a = -40 c to +125 c90 900 ppm/ma out shorted to gnd 60 output short-circuit current i sc out shorted to in 3 ma temperature hysteresis (note 4) ? v out / cycle 120 ppm long-term stability ? v out / time 1000 hours at t a = +25 c 50 ppm dynamic f = 0.1hz to 10hz 9 ? p-p noise voltage e out f = 10hz to 1khz 14.5 ? rms turn-on settling time t r to v out = 0.1% of final value, c out = 50pf 230 ? input supply voltage range v in guaranteed by line regulation test 7.0 40.0 v t a = +25 c 320 550 quiescent supply current i in no load t a = -40 c to +125 c 700 ? temp output temp output voltage v temp 630 mv temp temperature coefficient tc temp 2.1 mv/ c
max6173?ax6177 high-precision voltage references with temperature sensor 6 _______________________________________________________________________________________ electrical characteristics?ax6176 (v out = 10v) (v in = +15v, t a = -40 c to +125 c, unless otherwise noted. typical values are at t a = +25 c.) (note 1) parameter symbol conditions min typ max units output max6176a (0.05%) 9.9950 10.0 10.0050 output voltage v out no load, t a = +25 c max6176b (0.1%) 9.9900 10.0 10.0100 v output adjustment range ? v trim r pot = 10k ? 3 6% max6176aasa 1.5 3 output-voltage temperature coefficient (note 2) tcv out t a = -40 c to +125 c max6176basa 3 10 p p m / c t a = +25 c 0.6 5 line regulation (note 3) ? v out / ? v in 12v v in 40v t a = -40 c to +125 c 0.8 10 ppm/v t a = +25 c210 sourcing: 0 i out 10ma t a = -40 c to +125 c215 t a = +25 c 50 500 load regulation (note 3) ? v out / ? i out sinking: -0.6ma i out 0 t a = -40 c to +125 c 90 900 p p m /m a out shorted to gnd 60 output short-circuit current i sc out shorted to in 3 ma temperature hysteresis (note 4) ? v out / cycle 120 ppm long-term stability ? v out / time 1000 hours at t a = +25 c50 ppm dynamic f = 0.1hz to 10hz 18 ? p-p noise voltage e out f = 10hz to 1khz 29 ? rms turn-on settling time t r to v out = 0.1% of final value, c out = 50pf 400 ? input supply voltage range v in guaranteed by line regulation test 12.0 40.0 v t a = +25 c 340 550 quiescent supply current i in no load t a = -40 c to +125 c 700 ? temp output temp output voltage v temp 630 mv temp temperature coefficient tc temp 2.1 mv/ c note 1: all devices are 100% production tested at t a = +25 c and guaranteed by design over t a = t min to t max , as specified. note 2: temperature coefficient is defined as ? v out divided by the temperature range. note 3: line and load regulation specifications do not include the effects of self-heating. note 4: thermal hysteresis is defined as the change in +25 c output voltage before and after cycling the device from t max to t min .
typical operating characteristics (v in = +5v for v out = +2.5v, v in = +15v for v out = +10v, i out = 0, t a = +25?, unless otherwise noted.) max6173?ax6177 high-precision voltage references with temperature sensor _______________________________________________________________________________________ 7 2.498 2.500 2.499 2.501 2.502 output voltage vs. temperature (v out = 2.5v) max6173 toc01 temperature ( c) output voltage (v) -50 25 50 -25 0 75 100 125 three typical parts 9.993 9.998 9.995 10.001 9.999 9.996 10.002 9.997 9.994 10.000 10.003 output voltage vs. temperature (v out = 10v) max6173 toc02 temperature ( c) output voltage (v) -50 25 50 -25 0 75 100 125 three typical parts 0.50 0.25 0 -0.25 -0.50 015 510 202530 load regulation vs. source current (v out = 2.5v) max6173 toc03 source current (ma) output voltage change (mv) t a = -40 c t a = +125 c t a = +25 c 0.50 0.25 0 -0.25 -0.50 015 510 202530 load regulation vs. source current (v out = 10v) max6173 toc04 source current (ma) output voltage change (mv) t a = +25 c t a = +125 c t a = -40 c 1.00 0.75 0.50 0.25 -0.25 0 -0.50 01.0 0.5 1.5 2.0 load regulation vs. sink current (v out = 2.5v) max6173 toc05 sink current (ma) output voltage change (mv) t a = +25 c t a = +125 c t a = -40 c 2.0 1.5 1.0 0.5 -0.5 0 -1.0 01.0 0.5 1.5 2.0 load regulation vs. sink current (v out = 10v) max6173 toc06 sink current (ma) output voltage change (mv) t a = -40 c t a = +125 c t a = +25 c 0 60 20 40 80 100 line regulation vs. temperature (v out = 2.5v) max6173 toc07 input voltage (v) output voltage change ( v) 02025 5 1015 303540 t a = -40 c t a = +125 c t a = +25 c 0 150 50 100 200 250 300 line regulation vs. temperature (v out = 10v) max6173 toc08 input voltage (v) output voltage change ( v) 12 28 32 16 20 24 36 40 t a = -40 c t a = +125 c t a = +25 c 0.5 1.5 1.0 2.0 2.5 minimum input-output differential vs. source current (v out = 2.5v) max6173 toc09 source current (ma) dropout voltage (v) 01216 48 20 t a = -40 c t a = +125 c t a = +25 c
typical operating characteristics (continued) (v in = +5v for v out = +2.5v, v in = +15v for v out = +10v, i out = 0, t a = +25?, unless otherwise noted.) max6173?ax6177 high-precision voltage references with temperature sensor 8 _______________________________________________________________________________________ 0.5 1.5 1.0 2.0 2.5 minimum input-output differential vs. source current (v out = 10v) max6173 toc10 source current (ma) dropout voltage (v) 01216 48 20 t a = -40 c t a = +125 c t a = +25 c -140 -100 -120 -60 -80 -20 -40 0 0.001 0.1 1 0.01 10 100 1000 power-supply rejection ratio vs. frequency (v out = 2.5v) max6173 toc11 frequency (khz) psrr (db) -120 -100 -60 -80 -20 -40 0 0.001 0.1 1 0.01 10 100 1000 power-supply rejection ratio vs. frequency (v out = 10v) max6173 toc12 frequency (khz) psrr (db) 0.001 0.1 0.01 10 1 100 0.1 1 0.01 10 100 1000 output impedance vs. frequency (v out = 2.5v) max6173 toc13 frequency (khz) output impedance ( ? ) 0 100 50 200 150 250 300 350 400 01015 5 2025303540 supply current vs. input voltage (v out = 2.5v) max6173 toc14 input voltage (v) supply current ( a) t a = -40 c t a = +125 c t a = +25 c 0 100 50 200 150 250 300 350 400 01015 5 2025303540 supply current vs. input voltage (v out = 10v) max6173 toc15 input voltage (v) supply current ( a) t a = -40 c t a = +125 c t a = +25 c 250 300 275 325 350 -50 -25 0 25 50 75 100 125 supply current vs. temperature (v out = 2.5v) max6173 toc16 temperature ( c) supply current ( a) 250 325 300 275 350 375 -50 -25 0 25 50 75 100 125 supply current vs. temperature (v out = 10v) max6173 toc17 temperature ( c) supply current ( a) 400 600 500 700 800 -50 -25 0 25 50 75 100 125 temp voltage vs. temperature (v out = 2.5v) max6173 toc18 temperature ( c) temp voltage (mv)
typical operating characteristics (continued) (v in = +5v for v out = +2.5v, v in = +15v for v out = +10v, i out = 0, t a = +25?, unless otherwise noted.) max6173?ax6177 high-precision voltage references with temperature sensor _______________________________________________________________________________________ 9 400 600 500 800 700 900 -50 -25 0 25 50 75 100 125 temp voltage vs. temperature (v out = 10v) max6173 toc19 temperature ( c) temp voltage (mv) 2.35 2.50 2.45 2.40 2.60 2.55 2.65 0 0.5 1.0 1.5 2.0 2.5 output voltage vs. trim voltage (v out = 2.5v) max6173 toc20 trim voltage (v) output voltage (v) 2.498 2.500 2.499 2.501 2.502 0 200 400 600 800 1000 long-term stability vs. time (v out = 2.500v) max6173 toc21 time (hours) v out (v) two typical parts 9.998 10.000 9.999 10.001 10.002 0 200 400 600 800 1000 long-term stability vs. time (v out = 10.0v) max6173 toc22 time (hours) v out (v) two typical parts 1000 100 output-voltage noise density vs. frequency (v out = 2.5v) max6173 toc23 frequency (hz) output voltage-noise density (nv/ hz ) 0.1 100 1000 110 10,000 1000 100 output-voltage noise density vs. frequency (v out = 10v) max6173 toc24 frequency (hz) output voltage-noise density (nv/ hz ) 0.1 100 1000 110 0.1hz to 10hz output noise (v out = 2.5v) max6173 toc25 1 v/div 1s/div 0.1hz to 10hz output noise (v out = 10v) max6173 toc26 4 v/div 1s/div
typical operating characteristics (continued) (v in = +5v for v out = +2.5v, v in = +15v for v out = +10v, i out = 0, t a = +25?, unless otherwise noted.) max6173?ax6177 high-precision voltage references with temperature sensor 10 ______________________________________________________________________________________ load transient (v out = 2.5v, c out = 0, 0 to 20ma) max6173 toc27 i out v out ac-coupled 1v/div 0 20ma 10 s/div load transient (v out = 10v, c out = 0, 0 to 20ma) max6173 toc28 i out v out ac-coupled 1v/div 0 20ma 10 s/div load transient (v out = 2.5v, c out = 1 f, 0 to +20ma) max6173 toc29 i out v out ac-coupled 50mv/div 0 20ma 200 s/div load transient (v out = 10v, c out = 1 f, 0 to 20ma) max6173 toc30 i out v out ac-coupled 100mv/div 0 20ma 100 s/div load transient (v out = 2.5v, c out = 0, 0 to -2ma) max6173 toc31 i out v out ac-coupled 200mv/div 0 -2ma 40 s/div load transient (v out = 10v, c out = 0, 0 to -2ma) max6173 toc32 i out v out ac-coupled 20mv/div 0 -2ma 200 s/div
typical operating characteristics (continued) (v in = +5v for v out = +2.5v, v in = +15v for v out = +10v, i out = 0, t a = +25?, unless otherwise noted.) max6173?ax6177 high-precision voltage references with temperature sensor ______________________________________________________________________________________ 11 load transient (v out = 2.5v, c out = 1 f, 0 to -2ma) max6173 toc33 i out v out ac-coupled 20mv/div 0 -2ma 400 s/div load transient (v out = 10v, c out = 1 f, 0 to -2ma) max6173 toc34 i out v out ac-coupled 5mv/div 0 -2ma 400 s/div line transient (v out = 2.5v) max6173 toc35 v in v out ac-coupled 200mv/div 5.5v 4.5v 10 s/div c out = 0 line transient (v out = 10v) max6173 toc36 v in 1v/div v out ac-coupled 200mv/div 15.5v 14.5v 2 s/div turn-on transient (v out = 2.5v, c out = 0) max6173 toc37 v in 2v/div v out 1v/div gnd gnd 10 s/div c out = 0 turn-on transient (v out = 2.5v, c out = 1 f) max6173 toc38 v in 2v/div v out 1v/div gnd gnd 40 s/div
max6173?ax6177 high-precision voltage references with temperature sensor 12 ______________________________________________________________________________________ detailed description the max6173?ax6177 precision voltage references provide accurate preset +2.5v, +3.3v, +4.096v, +5.0v, and +10v reference voltages from up to +40v input volt- ages. these devices feature a proprietary temperature- coefficient curvature-correction circuit and laser-trimmed thin-film resistors that result in a very low 3ppm/ c tem- perature coefficient and excellent 0.05% initial accuracy. the max6173?ax6177 draw 340? of supply current and source 30ma or sink 2ma of load current. trimming the output voltage trim the factory-preset output voltage on the max6173?ax6177 by placing a resistive divider net- work between out, trim, and gnd. use the following formula to calculate the change in output voltage from its preset value: ? v out = 2 x (v trim - v trim (open) ) x k where: v trim = 0v to v out v trim (open) = v out (nominal) / 2 (typ) k = 6% (typ) for example, use a 50k ? potentiometer (such as the max5436) between out, trim, and gnd with the potentiometer wiper connected to trim (see figure 2). as the trim voltage changes from v out to gnd, the output voltage changes accordingly. set r2 to 1m ? or less. currents through resistors r1 and r2 add to the quiescent supply current. typical operating characteristics (continued) (v in = +5v for v out = +2.5v, v in = +15v for v out = +10v, i out = 0, t a = +25?, unless otherwise noted.) turn-on transient (v out = 10v, c out = 0) max6173 toc39 v in 5v/div v out 5v/div gnd gnd 100 s/div turn-on transient (v out = 10v, c out = 1 f) max6173 toc40 v in 5v/div v out 5v/div gnd gnd 200 s/div pin name function 1, 8 i.c. internally connected. do not connect externally. 2 in positive power-supply input 3 temp temperature proportional output voltage. temp generates an output voltage proportional to the die temperature. 4 gnd ground 5 trim output voltage trim. connect trim to the center of a voltage-divider between out and gnd for trimming. leave unconnected to use the preset output voltage. 6 out output voltage 7 n.c. no connection. not internally connected. pin description
max6173?ax6177 high-precision voltage references with temperature sensor ______________________________________________________________________________________ 13 temp output the max6173?ax6177 provide a temperature output proportional to die temperature. temp can be calculated from the following formula: temp (v) = t j (?) x n where t j = the die temperature, n = the temperature multiplier, t a = the ambient temperature. self-heating affects the die temperature and conversely, the temp output. the temp equation assumes the output is not loaded. if device power dissipation is negligible, then t j t a . applications information bypassing/output capacitance for the best line-transient performance, decouple the input with a 0.1? ceramic capacitor as shown in the typical operating circuit . place the capacitor as close to in as possible. when transient performance is less important, no capacitor is necessary. the max6173?ax6177 do not require an output capacitor for stability and are stable with capacitive loads up to 100?. in applications where the load or the supply can experience step changes, a larger output capacitor reduces the amount of overshoot (under- shoot) and improves the circuit? transient response. place output capacitors as close to the devices as pos- sible for best performance. supply current the max6173?ax6177 c onsume 320? (typ) of qui- escent supply current. this improved efficiency reduces power dissipation and extends battery life. thermal hysteresis thermal hysteresis is the change in the output voltage at t a = +25 c before and after the device is cycled over its entire operating temperature range. hysteresis is caused by differential package stress appearing across the bandgap core transistors. the typical ther- mal hysteresis value is 120ppm. turn-on time the max6173?ax6177 typically turn on and settle to within 0.1% of the preset output voltage in 150? (2.5v output). the turn-on time can increase up to 150? with the device operating with a 1? load. short-circuited outputs the max6173?ax6177 feature a short-circuit-protected output. internal circuitry limits the output current to 60ma when short circuiting the output to ground. the output current is limited to 3ma when short circuiting the output to the input. n vattt t mv k temp j ( ) ./ = = ? 0 0 19 temperature coefficient (ppm/ c) 110 100 16-bit 14-bit 12-bit 10-bit 8-bit 0.01 0.1 10 100 1000 1 10,000 18-bit 20-bit operating temperature range (t max - t min ) ( c) figure 1. temperature coefficient vs. operating temperature range for a 1 lsb maximum error
max6173?ax6177 high-precision voltage references with temperature sensor 14 ______________________________________________________________________________________ temperature coefficient vs. operating temperature range for a 1 lsb maximum error in a data converter application, the reference voltage of the converter must stay within a certain limit to keep the error in the data converter smaller than the resolu- tion limit through the operating temperature range. figure 1 shows the maximum allowable reference-volt- age temperature coefficient to keep the conversion error to less than 1 lsb, as a function of the operating temperature range (t max - t min ) with the converter resolution as a parameter. the graph assumes the ref- erence-voltage temperature coefficient as the only parameter affecting accuracy. in reality, the absolute static accuracy of a data con- verter is dependent on the combination of many para- meters such as integral nonlinearity, differential nonlinearity, offset error, gain error, as well as voltage- reference changes. in out gnd *optional. * ( v out + 2v) to 40v input reference output max5436 50k ? potentiometer trim temp max6173?ax6177 figure 2. applications circuit using the max5436 potentiometer chip information transistor count: 429 process: bicmos out trim gnd *internally connected. do not connect. 1 2 8 7 i.c.* n.c. in temp i.c.* so top view 3 4 6 5 max6173 max6177 pin configuration
max6173?ax6177 high-precision voltage references with temperature sensor maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 15 2004 maxim integrated products printed usa is a registered trademark of maxim integrated products. package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation go to www.maxim-ic.com/packages .) soicn .eps package outline, .150" soic 1 1 21-0041 b rev. document control no. approval proprietary information title: top view front view max 0.010 0.069 0.019 0.157 0.010 inches 0.150 0.007 e c dim 0.014 0.004 b a1 min 0.053 a 0.19 3.80 4.00 0.25 millimeters 0.10 0.35 1.35 min 0.49 0.25 max 1.75 0.050 0.016 l 0.40 1.27 0.394 0.386 d d min dim d inches max 9.80 10.00 millimeters min max 16 ac 0.337 0.344 ab 8.75 8.55 14 0.189 0.197 aa 5.00 4.80 8 n ms012 n side view h 0.244 0.228 5.80 6.20 e 0.050 bsc 1.27 bsc c h e e b a1 a d 0 -8 l 1 variations:
e nglish ? ???? ? ??? ? ??? what's ne w p roducts solutions de sign ap p note s sup p ort buy comp any me mbe rs m axim > p roduc ts > v oltage referenc es max6173, max6174, max6175, max6176, max6177 high-precision voltage references with temperature sensor quickview technical documents ordering info more information all ordering information notes: other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales . 1. didn't find what you need? ask our applications engineers. expert assistance in finding parts, usually within one business day. 2. part number suffixes: t or t&r = tape and reel; + = rohs/lead-free; # = rohs/lead-exempt. more: see full data sheet or part naming c onventions . 3. * some packages have variations, listed on the drawing. "pkgc ode/variation" tells which variation the product uses. 4. devices: 1-40 of 40 m ax6173 fre e sam ple buy pack age : type pins footprint drawing code/var * te m p rohs/le ad-fre e ? m ate rials analys is max6173aasa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6173basa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6173basa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6173aasa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6173aasa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6173basa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6173aasa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6173basa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis m ax6174 fre e sam ple buy pack age : type pins footprint drawing code/var * te m p rohs/le ad-fre e ? m ate rials analys is max6174basa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6174basa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6174aasa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6174aasa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis
max6174aasa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6174aasa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6174basa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6174basa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis m ax6175 fre e sam ple buy pack age : type pins footprint drawing code/var * te m p rohs/le ad-fre e ? m ate rials analys is max6175aasa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6175aasa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6175basa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6175basa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6175aasa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6175basa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6175basa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6175aasa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis m ax6176 fre e sam ple buy pack age : type pins footprint drawing code/var * te m p rohs/le ad-fre e ? m ate rials analys is max6176aasa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6176aasa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6176basa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6176basa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6176basa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6176aasa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6176aasa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6176basa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis m ax6177 fre e sam ple buy pack age : type pins footprint drawing code/var * te m p rohs/le ad-fre e ? m ate rials analys is
max6177basa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6177aasa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6177aasa+ soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis max6177aasa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6177aasa-t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6177basa soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis MAX6177BASA-T soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8-4 * -40c to +125c rohs/lead-free: no materials analysis max6177basa+t soic ;8 pin;31 mm dwg: 21-0041b (pdf) use pkgcode/variation: s8+4 * -40c to +125c rohs/lead-free: lead free materials analysis didn't find what you need? next day product selection assistance from applications engineers parametric search applications help quickview technical documents ordering info more information des c ription key features a pplic ations /u s es key spec ific ations diagram data sheet a pplic ation n otes des ign guides e ngineering journals reliability reports software/m odels e valuation kits p ric e and a vailability samples buy o nline p ac kage i nformation lead-free i nformation related p roduc ts n otes and c omments e valuation kits doc ument ref.: 1 9 -2 9 4 2 ; rev 0 ; 2 0 0 4 -0 7 -2 9 t his page las t modified: 2 0 0 7 -0 3 -0 7 c ontac t us: send us an email c opyright 2 0 0 7 by m axim i ntegrated p roduc ts , dallas semic onduc tor ? legal n otic es ? p rivac y p olic y

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