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data converters - s m t 1 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux t he hmc a d5831lp9b e is a wideband 3-bit analog- to-digital converter with over/under range bit. t he converter operates at speeds up to 26 g s /s with a n yquist input. r eference ladder end voltages are set externally by the user allowing the user to customize input common mode and swing levels. a dc outputs can be forced to 0 by using the data inhibit function. o utput data can be modulated by an external clock via the x or cml input. t he hmc a d5831lp9b e also features a 1:2 demux with half rate clock output. t he output bits are binary weighted, where x2 and y2 are the m s bs. t he single-ended r f input can be a c or dc coupled and supports broadband operation. t he hmc a d5831lp9b e operates from -5 v and -3.3 v supplies and is available in ro h s -compliant 9 x 9 mm s m t package. general description features functional diagram full flash a rchitecture o ver/under r ange bit data inhibit function data x or function 1:2 demux programmable differential cml o utput s wing 64 lead plastic 9 x 9 mm s m t package: 81 mm 2 typical applications t he hmc a d5831lp9b e is ideal for: ? serial data links ? test equipment for link diagnostics ? clock & data recovery ? spectrometers ? ultra wideband phased arrays ? radio astronomy electrical specifcations, t a = +25 c, avee = -5 v, ovee = -3.3 v parameter conditions min. t yp. max units r esolution 3 bits s ample r ate 20 26 [1] ghz d n l (including o verrange bit) -0.5 0.5 lsbs i n l (including o verange bit) -0.5 0.3 0.5 lsbs input bandwidth 20 ghz input dc v oltage 0 v input v oltage s wing can be user defned 256 mv input r in 50 clock power, s ingle e nded -3 dbm clock, x or r in differential 100 ladder t op v oltage ( rt f) can be user defned -0.808 v for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 2 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux electrical specifcations (continued) parameter conditions min. t yp. max units ladder bottom v oltage ( r bf) can be user defned -1.064 v o utput a mplitude [2] s ingle ended, peak to peak 286 mv p-p o utput high v oltage [2] -33 mv o utput low v oltage [2] -319 mv x or clock r ate 156.25 mhz x or input power, s ingle e nded -3 dbm data inhibit r in s ingle ended 600 data inhibit high v oltage 200 mv data inhibit low v oltage -200 mv data, clock, ovr bits r out differential 100 data, clock, ovr bits r out s ingle ended 50 demux r atio 1:2 eno b (20 g s /s) fn = 312.5 mhz 2.9 bits eno b (20 g s /s) fn = 9.6875 ghz 2.9 bits eno b (20 g s /s) fn = 19.6875 ghz 2.9 bits eno b (26 g s /s) fn = 406.25 mhz 2.9 bits eno b (26 g s /s) fn = 12.5938 ghz 2.9 bits s fd r (20 g s /s) fn = 312.5 mhz 24.7 dbf s s fd r (20 g s /s) fn = 9.6875 ghz 25.7 dbf s s fd r (20 g s /s) fn = 19.6875 ghz 27. 2 dbf s power s upply v oltage -4.5 -5 -5.5 v power s upply current (-5 v ) 725 ma power s upply v oltage -3 -3.3 -3.6 v power s upply current (-3.3 v ) 176 ma power 4.2 w [1] r equires sufficient clock power and cooling. [2] with a single 200 resistor tied from vref1 and vref2 to ognd. vref1 and vref2 are connected off chip. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 3 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux bandwidth [1] integral nonlinearity (including overrange bits) differential nonlinearity (including overrange bits) spectral performance fft (9.6875 ghz input, 20 gs/s clock) spectral performance fft (312.5 mhz input, 20 gs/s clock) -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 0246810 dbfs (db) frequency (ghz) -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 0246810 dbfs (db) frequency (ghz) -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 123456789 dnl (lsbs) code -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 123456789 inl (lsbs) code [1] t his graph was made by measuring the analog input power required to get full scale on the digital output. t he increase in power from dc should be equal to the attenuation. t he effects of the cables and the circuit board were estimated and subtracted from the measured attenuation to determine the input attenuation of the packaged part. [2] s ingle-ended voltage swing into 50 ohm resistor. 0 0.1 0.2 0.3 0.4 0.5 0.6 0 500 1000 1500 2000 voltage (vp-p) resistor (ohms) vref resistor value vs. output voltage swing [2] -3.5 -3 -2.5 -2 -1.5 -1 -0.5 0 0 2 4 6 8 10 12 14 16 18 20 eval board packaged device attenuation (db) frequency (ghz) for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 4 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux clock s11 [1] signal s11 [1] timing diagram -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 0 2 4 6 8 10 12 14 16 18 20 s11 (db) frequency (ghz) -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 0 2 4 6 8 10 12 14 16 18 20 s11 (db) frequency (ghz) [1] t his is s 11 data taken from the input of the evaluation board. t he gating function on the network analyzer was employed to remove the effects of the pcb and look only at the packaged part. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 5 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux xor input alignment timing diagrams for x side leading data d0 = a 0 xor x0 d1 = a 1 xor x0 d2 = a 2 xor x1 d3 = a 3 xor x1 d4 = a 4 xor x2 d5 = a 5 xor x2 correct data d0 = a 0 xor x0 d1 = a 1 xor x1 d2 = a 2 xor x1 d3 = a 3 xor x2 d4 = a 4 xor x2 d5 = a 5 xor x3 incorrect t he fpg a aligns the data with the x side leading. in the incorrect case, a 1-bit shift is caused by the 1 clock cycle delay in the x or . for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 6 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux absolute maximum ratings e l e c trostat ic sens i t i ve d ev ic e o b serve h an dli n g p re c a ut i ons outline drawing power s upply v oltage ( v ee) -5.5 v to +0.5 v power s upply v oltage ( ov ee) -3.6 v to +0.5 v input and clock s ignals -2 v to +0.5 v o utput s ignals -1.5 v to 0.5 v junction t emperature 125 c t hermal r esistance ( r th j-p ) worst case device to package paddle 2.5 c/w s torage t emperature -65 c to +150 c o perating t emperature -40 c to +70 c es d s ensitivity (hbm) class 1c notes : 1. p a ck a g e b o dy m ater i a l: a lumi na 2. l ea d an d g ro u n d p a ddl e pl at i n g: 30-80 mic ro i n ch es g o ld over 50 mic ro i n ch es mi n imum n ick e l. 3. dim ens i ons are i n i n ch es [millim eters ]. 4. l ea d s p a ci n g to l eran c e i s non -cumul at i ve . 5. package warp shall not exceed 0.05 mm datum -c- 6. a ll g ro u n d l ea d s mu st b e so ld ere d to pcb r f g ro u n d. 7. p a ddl e mu st b e so ld ere d to avee 8. part is operated with a heatsink of 25 sq. cm. surface area and an airflow of 10 cfm. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 7 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux pin descriptions pin n umber function description interface s chematic 1, 15 rt f, r bf r eference ladder top and bottom taps 2, 7, 9, 10, 13, 16, 17, 18, 21, 60, 63, 64 a g nd a nalog ground 3, 4, 5, 6, 14 avee -5 v analog rail t hese pins and the exposed paddle must be connected to the negative voltage supply. 8 in s ingle-ended r f input referenced to a g n d. 11, 12 ckp, ck n differential clock inputs current mode logic (cml) referenced to a g n d. 19, 20 x or p, x orn differential x or inputs current mode logic (cml) referenced to a g nd . 22, 23, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 58, 59 o g nd digital ground 24, 25, 56, 57 ovee -3.3 v digital rail 26, 55 vre f2, vre f1 o utput level control o utput level may be increased or decreased by applying a voltage to v ref pins. 28, 29, 31, 32, 34, 35, 37, 38, 43, 44, 46, 47, 49, 50, 52, 53 x vn , x v p, y vn , y v p, x on , x o p, y on , y o p, x1 n , x1p, y1 n , y1p, x2 n , x2p, y2 n , y2p differential outputs current mode logic (cml) referenced to o g n d. 40, 41 o clk n , o clkp differential clock output current mode logic (cml) referenced to a g n d. 61, 62 qtn, qtp differential data inhibit inputs for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 8 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux t he a dcs voltage reference ladder comprises 8, 18 ? resistors, or 144 ? total resistance. pin 1, rt f, and pin 15, r bf, are provided for the top and bottom reference taps. t hese pins are driven by external supplies to establish the desired full-scale range of the a dc. t he r f signal input (pin 8, i n ) to the a dc drives an internal emitter follower with a nominal v b e of -900 m v . hence the center of full-scale range should center near -900 m v . t he voltage at pin rt f is then -900 m v + v full-scale /2. likewise the voltage at pin r bf is -900 m v - v full-scale /2. a s an example, if the user had a peak-to-peak input voltage swing of 256 m v and required the full-scale input range of the a dc to be 256 m v as well, rt f would be -900 m v + 128 m v = -772 m v . r bf would be -900 m v - 128 m v = -1.028 v . n ote that the diode drop, -900 m v , is dependent on temperature and process variations. rt f and r bf values in the e lectrical s pecifcations table on pages 1 and 2 are shown as nominal values only. n ote that ladder end voltages, rt f and r bf, are set by the common-mode level of the input, i n . for operation of 10 ghz input and 20 g s /s sample rate, recommended maximum input swing is 0.512 v as set by rt f and r bf. for lower input frequencies, the device will operate with a maximum 1.5 v input swing. t he e lectrical s pecifcations table lists typical operating ranges. reference ladder vref pins pins 26 and 55 ( vre f1 amd vre f2) should be connected together off chip and the pair is then connected to the o g n d through a resistor. t hese pins are used to vary the output swing voltage. t he a pplication circuit shown uses a 200 resistor. t his provides the typical output swings listed in the e lectrical s pecifcations table. increasing the voltage on vre f1 and vre f2 will increase the output swing. conversely, decreasing the vre f1 and vre f2 voltages will decrease the output swing. overrange output pins 28, 29, 31, and 32 provide overrange output bits. t his function indicates when the input signal is out of range of the reference ladder voltages. t he bit will be high when either the signal is above rt f or below r bf. t he overrange bit is cleared for the next clock cycle containing in-range data. data inhibit all data outputs can be forced to 0 by enabling the data inhibit function (pins 61 and 62). by driving the qtp pin high and the qtn pin low, the adc core will produce all 0s. this occurs prior to the xor funciton and the demux. when qtp is low and qtn is high, the chip operates normally. data xor a ll data outputs from the a dc core can be modulated by an external source. t his allows the user to use a c coupling for output line connection to a ser d es input of an fpg a . t his function occurs prior to the demux. t he x or input signal is retimed by the full rate internal clock and requires low jitter and suitable rise and fall times. please contact hittite microwave for sample driver circuits. t ypical modulation frequencies are 100 mhz to 300 mhz. for a square wave signal, a multiple of two divisor of the full rate internal clock should be used, e.g. 1/128th or 1/64th of the a dc clock. due to the nature of the retiming scheme, the demux channel relationship timing can vary. t his is dependent on when the x or input is sampled relative to the full rate internal clock. s ee timing diagrams on page 5. for example, a nominal setup may have demux side x leading and side y trailing. if the x or input is shifted relative to the internal clock, side y may lead and side x may trail. it is highly recommended that a variable delay be used to adjust the phase of the x or input to avoid transitions that are very close to internal clock edges. s ee t ypical o peration e xample for more information. t he x or function can be used with the data inhibit function to produce a sync pattern for aligning the lanes of ser d es inputs. t he device outputs are inverted when x or is low. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 9 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux evaluation board description eva l01-hmc5831lp9 (131499) demonstrates the hmc a d5831lp9b e in an environment ready to be connected to an fpg a . a long with the a dc, the board features three other hittite microwave components. t he clock output of the a dc is divided down by 64 (two stages of 8, u1, and u2) to produce a clock ouput that is 1/128th of the a dc clock input. t his clock is available to drive the fpg a or other system components. t he a dc x or input has programmable delay (u4) allowing the user to fne-tune the x or clock edges going into the a dc. t he i n hibi t and d8bx inputs are 0 to +3.3 v , compatible with most fpg a s. finally, the a dc_ vr pin allows the user to control the output voltage swing of the a dc. o utput connectors j2 and j3 are high-performance sa m te c connectors, part number er f8-013-05.0-d v . typical operation example a n fpg a with suitably fast ser d es inputs can capture data from the hmc a d5831lp9b e using the following routine. t he fpg a produces an i n hibi t high signal causing the a dc core to produce all 0s. t he x or input to the a dc runs at some slow clock rate and modulates the a dc output to produce a known waveform at the fpg a inputs. t he fpg a then uses these signals to align the lanes. when the lanes are aligned, the inhibit signal goes low and the adc produces signal data that continues to be modulated by the x or input. t he fpg a then corrects for the modulation. n ote that the fpg a can generate the x or modulation signal (in which case a p r b s sequence could be used). depending on the phase of the x or input modulation waveform, either demux output (x or y) can be the leading data sample. in this case, the fpg a would need to resolve which lane is the leader. t his can be accomplished by driving the a dc with a known signal, evaluating the outputs and reassembling fpg a data if necessary. it is recommended to do this on each power up. it is also recommended to perform a routine to ensure that the x or input waveform is properly aligned with the internal clock. t his can be accomplished by sweeping the external variable delay stage. high-temperature operation it is highly recommended that the part be used with a heat sink and fan. performance diminishes as temperature increases. n ominal conditions for part evaluation occurred at an ambient temperature of 25 c. t he evaluation board has a heat sink with an area of 25 cm^2. with this setup, the paddle of the part was measured to be 45 c. when the paddle temperature was raised to 75 c, limited performance was maintained, with an increased clock power level. a t 75 c, performance is guaranteed up to 10 ghz input frequency, 20 g s /s clock rate only. for temperatures above 75 c, device perfor mance is not guaranteed above 20 g s /s. ten-level operation t he hmc a d5831lp9b e can be used as a ten-level (3.32 bits) a dc by combining the regular data outputs with the o verrange bit. t he bottom code (code 0) is equal to ovr high and all the bits low. for codes 1 through 8, the a dc functions normally (with ovr low). t he top code, code 9, is all bits high. n ote that the i n l/d n l plots include ovr in this manner. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 10 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux evaluation pcb for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 11 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux list of materials for evaluation pcb eval01-hmc5831lp9 [1] item description j1 14 position s traight header j2, j3 e dge r ate s ocket s trip, 26 position j5 conn header 12 position 3mm 2 r ows j7 - j9 pc n mount k r f connectors j10 - j13 s mp full detent r f connectors c1, c3, c32 1000 f capacitor, 0603 pkg. c2, c4 - c18, c20 - c23 1000 f capacitor, 0402 pkg c19, c26 4.7 f capacitor, 1206 pkg. c24 - c25, c27 - c31 100 nf capacitor 0402 pkg. r 1, r 4 - r 8 33 k o hm r esistor, 0603 pkg. r 2, r 12 - r 17, r 20 - r 24 3.3 k o hm r esistor, 0603 pkg. r 18, r 25, r 28 1.2 k o hm r esistor, 0603 pkg. r 26, r 27, r 31 51 o hm r esistor, 0603 pkg. r 29 14 k o hm r esistor, 0603 pkg. r 30 200 o hm r esistor, 0603 pkg. u1, u2 hmc859lc3 divide by 8, 26 ghz u3 hmc5831lp9 20 g s /s 3-bit a dc u4 hmc856lc5 5-bit t ime delay, 26 ghz pcb [2] 131499 e valuation board [1] r eference this number when ordering complete evaluation pcb [2] circuit board material: a rlon 25f r or r ogers 4350 t he circuit board used in the application should use r f circuit design techniques. s ignal lines should have 50 ohm impedance while the package ground leads should be connected directly to the ground plane similar to that shown. t he exposed metal package base must be connected to avee . a sufficient number of via holes should be used to connect the top and bottom ground planes. t he evaluation circuit board shown is available from hittite upon request. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/
data converters - s m t 12 HMCAD5831LP9BE v00.0312 26 gs/ s 3-bit analog-to-digital converter w/ overrange, inhibit, and 1:2 demux application circuit pin n umber function description 2, 7, 9, 10, 13, 16, 17, 18, 21, 60, 63, 64 a g nd a nalog ground 3, 4, 5, 6, 14 avee -5 v analog rail t hese pins and the exposed paddle must be connected to the negative voltage supply. 22, 23, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 58, 59 o g nd digital ground 24, 25, 56, 57 ovee -3.3 v digital rail j5 12-position m o l e x. j2, j3 sa m te c for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com www.datasheet.net/ datasheet pdf - http://www..co.kr/

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