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Precision Micropower Low Noise CMOS Railto-Rail Input/Output Operational Amplifiers AD8603/AD8607/AD8609 FEATURES Low offset voltage: 50 V max Low input bias current: 1 pA max Single-supply operation: 1.8 V to 5 V Low noise: 22 nV/Hz Micropower: 50 A max Low distortion No phase reversal Unity gain stable PIN CONFIGURATIONS OUT 1 5 V+ AD8603 V- 2 +IN 3 4 -IN Figure 1. 5-Lead TSOT-23 (UJ Suffix) APPLICATIONS Battery-powered instrumentation Multipole filters Sensors Low power ASIC input or output amplifiers AD8607 4 5 Figure 2. 8-Lead MSOP (RM Suffix) GENERAL DESCRIPTION The AD8603/AD8607/AD8609 are, single/dual/quad micropower rail-to-rail input and output amplifiers, respectively, that features very low offset voltage as well as low input voltage and current noise. These amplifiers use a patented trimming technique that achieves superior precision without laser trimming. The parts are fully specified to operate from 1.8 V to 5.0 V single supply or from 0.9 V to 2.5 V dual supply. The combination of low offsets, low noise, very low input bias currents, and low power consumption make the AD8603/AD8607/AD8609 especially useful in portable and loop-powered instrumentation. The ability to swing rail to rail at both the input and output enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in low power single-supply systems. The AD8603 is available in a tiny 5-lead TSOT-23 package. The AD8607 is available in 8-lead MSOP and SOIC packages. The AD8609 is available in 14-lead TSSOP and SOIC packages. OUT A 1 -IN A 2 +IN A 3 V- 4 8 V+ 04356-0-047 04356-0-046 04356-0-044 AD8607 7 OUT B 6 -IN B 5 +IN B Figure 3. 8-Lead SOIC (R Suffix) OUT A -IN A +IN A V+ +IN B -IN B OUT B 1 14 AD8609 7 8 OUT D -IN D +IN D V- +IN C -IN C OUT C Figure 4. 14-Lead TSSOP (RU Suffix) OUT A 1 14 OUT D 13 -IN D 12 +IN D -IN A 2 +IN A 3 V+ 4 +IN B 5 -IN B 6 OUT B 7 AD8609 11 V- 10 +IN C 9 -IN C 8 OUT C Figure 5. 14-Lead SOIC (R Suffix) Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 (c) 2003 Analog Devices, Inc. All rights reserved. 04356-0-045 OUT A -IN A +IN A V- 1 8 V+ OUT B -IN B +IN B 04356-0-001 TOP VIEW (Not to Scale) AD8603/AD8607/AD8609 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Typical Performance Characteristics ............................................. 6 Applications..................................................................................... 12 No Phase Reversal ...................................................................... 12 Input Overvoltage Protection ................................................... 12 Driving Capacitive Loads .......................................................... 12 Proximity Sensors....................................................................... 13 Composite Amplifiers................................................................ 13 Battery-Powered Applications .................................................. 14 Photodiodes ................................................................................ 14 Outline Dimensions ....................................................................... 15 Ordering Guide .......................................................................... 16 REVISION HISTORY 10/03--Data Sheet Changed from Rev. 0 to Rev. A Change Page Added AD8607 and AD8609 parts ..............................Universal Changes to Specifications ............................................................ 3 Changes to Figure 35.................................................................. 10 Added Figure 41.......................................................................... 11 Rev. A | Page 2 of 16 AD8603/AD8607/AD8609 SPECIFICATIONS Table 1. Electrical Characteristics @ VS = 5 V, VCM = VS/2, TA = 25C, unless otherwise noted Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions VS = 3.3 V @ VCM = 0.5 V and 2.8 V -0.3 V < VCM < +5.2 V -40C < TA < +125C, -0.3 V < VCM < +5.2 V -40C < TA < +125C -40C < TA < +85C -40C < TA < +125C Input Offset Current IOS -40C < TA < +85C -40C < TA < +125C Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain AD8603 AD8607/AD8609 Input Capacitance OUTPUT CHARACTERISTICS Output Voltage High IVR CMRR AVO 0 V < VCM < 5 V -40C < TA < +125C RL = 10 k, 0.5 V VOS/T IB 1000 450 1.9 2.5 4.97 4.97 16 160 80 36 100 40 30 50 250 330 Output Voltage Low VOL Output Current Closed-Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time 0.1% Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density Channel Separation IOUT ZOUT PSRR ISY 50 60 SR tS GBP OO en p-p en in Cs 0.1 23 400 316 70 2.3 25 22 0.05 -115 -110 Rev. A | Page 3 of 16 AD8603/AD8607/AD8609 Table 2. Electrical Characteristics @ VS = 1.8 V, VCM = VS/2, TA = 25C, unless otherwise noted Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions VS = 3.3 V @ VCM = 0.5 V and 2.8 V -0.3 V < VCM < +1.8 V -40C < TA < +85C, -0.3 V < VCM < +1.8 V -40C < TA < +125C, -0.3 V < VCM < +1.7 V -40C < TA < +125C -40C < TA < +85C -40C < TA < +125C Input Offset Current IOS -40C < TA < +85C -40C < TA < +125C Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain AD8603 AD8607/AD8609 Input Capacitance OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Output Current Closed-Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time 0.1% Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density Channel Separation IVR CMRR AVO 0 V < VCM < 1.8 V -40C < TA < +85C RL = 10 k, 0.5 V VOS/T IB 1 0.2 3000 2000 2.1 3.8 1.72 38 7 36 100 40 60 80 50 60 SR tS GBP OO en p-p en in Cs 0.1 9.2 385 316 70 2.3 25 22 0.05 -115 -110 Rev. A | Page 4 of 16 AD8603/AD8607/AD8609 ABSOLUTE MAXIMUM RATINGS Table 3. AD8603/AD8607/AD8609 Stress Ratings1, 2 Parameter Supply Voltage Input Voltage Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range All Packages Lead Temperature Range (Soldering, 60 Sec) Operating Temperature Range Junction Temperature Range All Packages Rating 6V GND to VS 6 V Indefinite -65C to +150C 300C -40C to +125C -65C to +150C Table 4. Package Characteristics Package Type 5-Lead TSOT-23 (UJ) 8-Lead MSOP (RM) 8-Lead SOIC (R) 14-Lead SOIC (R) 14-Lead TSSOP (RU) JA3 207 210 158 120 180 JC 61 45 43 36 35 Unit C/W C/W C/W C/W C/W Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 Absolute maximum ratings apply at 25C, unless otherwise noted. 3 JA is specified for the worst-case conditions, i.e., JA is specified for device soldered in circuit board for surface-mount packages. 1 ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although these parts feature proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. A | Page 5 of 16 AD8603/AD8607/AD8609 TYPICAL PERFORMANCE CHARACTERISTICS 2600 2400 2200 2000 VS = 5V TA = 25C VCM = 0V to 5V 300 250 200 150 100 50 VS = 3.3V TA = 25C NUMBER OF AMPLIFIERS 1800 1600 1400 1200 1000 800 600 04356-0-002 VOS (V) 0 -50 -100 -150 04356-0-005 400 200 0 -270 -210 -150 -90 -30 0 30 VOS (V) 90 150 210 270 -200 -250 -300 0.0 0.3 0.6 0.9 1.2 1.5 1.8 VCM (V) (V) 2.1 2.4 2.7 3.0 3.3 Figure 6. Input Offset Voltage Distribution Figure 9. Input Offset Voltage vs. Common-Mode Voltage 30 400 350 VS= 2.5V TA= -40C TO +125C VCM= 0V 25 VS = 2.5V INPUT BIAS CURRENT (pA) NUMBERS OF AMPLIFIERS 300 250 200 150 100 50 0 04356-0-006 20 15 10 0 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 TCVOS (V/C) 4.0 4.4 4.8 04356-0-003 5 0 25 75 50 TEMPERATURE (C) 100 125 Figure 7. Input Offset Voltage Drift Distribution Figure 10. Input Bias vs. Temperature 300 250 200 150 100 50 1000 OUTPUT VOLTAGE TO SUPPLY RAIL (mV) VS = 5V TA = 25C VS = 5V TA = 25C 100 10 SINK VOS (V) 0 -50 -100 -150 04356-0-004 SOURCE 1 -250 -300 0.0 0.5 1.0 1.5 2.0 2.5 3.0 VCM (V) 3.5 4.0 4.5 5.0 0.01 0.001 0.01 0.1 LOAD CURRENT (mA) 1 10 Figure 8. Input Offset Voltage vs. Common-Mode Voltage Figure 11. Output Voltage to Supply Rail vs. Load Current Rev. A | Page 6 of 16 04356-0-007 -200 0.1 AD8603/AD8607/AD8609 350 300 250 200 VOL @ 10mA LOAD 150 100 50 0 -40 -25 04356-0-008 VS = 5V TA = 25C VDD - VOH @ 10mA LOAD 1925 1750 1575 OUTPUT IMPEDANCE () VS = 2.5V, 0.9V OUTPUT SWING (mV) 1400 1225 1050 875 700 525 350 175 100 1k 10k FREQUENCY (Hz) 100k A = 10 A = 100 A=1 04356-0-012 VDD - VOH @ 1mA LOAD VOL @ 1mA LOAD -10 5 20 35 50 65 TEMPERATURE (C) 80 95 110 125 Figure 12. Output Voltage Swing vs. Temperature Figure 15. Output Impedance vs. Frequency 100 80 60 OPEN-LOOP GAIN (dB) 225 VS = 2.5V RL = 100k CL = 20pF = 70.9 180 135 90 45 0 -45 -90 -135 04356-0-010 140 120 100 80 PHASE (Degree) CMRR (dB) VS = 2.5V 40 20 0 -20 -40 -60 -80 -100 1k 10k 100k FREQUENCY (Hz) 1M 60 40 20 0 -20 -40 -60 100 1k 10k FREQUENCY (Hz) 04356-0-013 -180 -225 10M 100k Figure 13. Open-Loop Gain and Phase vs. Frequency Figure 16. Common-Mode Rejection Ratio vs. Frequency 5.0 4.5 4.0 OUTPUT SWING (V p-p) 3.5 VS = 5V VIN = 4.9V p-p T = 25C AV = 1 140 120 100 80 VS = 2.5V 2.5 2.0 1.5 1.0 04356-0-011 PSRR (dB) 3.0 60 40 20 0 -20 -40 -60 10 100 1k FREQUENCY (Hz) 10k 04356-0-014 0.5 0.0 0.01 0.1 1 FREQUENCY (kHz) 10 100 100k Figure 14. Closed-Loop Output Voltage Swing vs. Frequency Figure 17. PSRR vs. Frequency Rev. A | Page 7 of 16 AD8603/AD8607/AD8609 60 VS = 5V 50 SMALL SIGNAL OVERSHOOT (%) VS = 5V, 1.8V VOLTAGE NOISE (1V/DIV) 40 OS- 30 20 OS+ 04356-0-015 0 10 100 LOAD CAPACITANCE (pF) 1000 TIME (1s/DIV) Figure 18. Small Signal Overshoot vs. Load Capacitance Figure 21. 0.1 Hz to 10 Hz Input Voltage Noise 60 55 50 45 SUPPLY CURRENT (A) VS = 2.5V VS = 5V RL = 10k CL = 200pF AV = 1 VOLTAGE (50mV/DIV) 40 35 30 25 20 15 04356-0-016 5 0 -40 -25 -10 5 20 35 50 65 TEMPERATURE (C) 80 95 110 125 TIME (4s/DIV) Figure 19. Supply Current vs. Temperature Figure 22. Small Signal Transient 100 90 80 SUPPLY CURRENT (A) TA = 25C VS = 5V RL = 10k CL = 200pF AV = 1 VOLTAGE (1V/DIV) 70 60 50 40 30 20 10 0 0 1.0 2.0 3.0 SUPPLY VOLTAGE (V) 4.0 04356-0-017 04356-0-020 5.0 TIME (20s/DIV) Figure 20. Supply Current vs. Supply Voltage Figure 23. Large Signal Transient Rev. A | Page 8 of 16 04356-0-019 10 04356-0-018 10 AD8603/AD8607/AD8609 VOLTAGE NOISE DENSITY (nV/ Hz) +2.5V VOLTAGE (50mV/DIV) VS = 2.5V RL = 10k AV = 100 VIN = 50mV 176 VS = 2.5V 154 132 110 88 66 44 22 0 0 1 2 3 4 5 6 7 FREQUENCY (kHz) 8 9 10 04356-0-046 0V 0V TIME (4s/DIV)) (40s/DIV)) 04356-0-021 -50mV Figure 24. Negative Overload Recovery Figure 27. Voltage Noise Density vs. Frequency VS = 2.5V RL = 10k AV = 100 VIN = 50mV VOLTAGE (50mV/DIV) 800 750 +2.5V NUMBER OF AMPLIFIERS 700 650 600 550 500 450 400 350 300 250 200 150 100 50 0 -300 -240 -180 -120 VS = 1.8V TA = 25C VCM = 0V to 1.8V 0V 0V 04356-0-022 TIME (4s/DIV) -60 0 60 VOS (V) 120 180 240 300 Figure 25. Positive Overload Recovery Figure 28. VOS Distribution 168 VS = 2.5V VOLTAGE NOISE DENSITY (nV/ Hz) 300 250 200 VS = 1.8V TA = 25C 144 120 96 VOS (V) 150 100 50 72 48 04356-0-045 0 -50 -100 -150 04356-0-026 24 0 0 -200 -250 -300 0.0 0.3 0.6 0.9 VCM (V) VCM (V) 1.2 1.5 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 FREQUENCY (kHz) 1.8 Figure 26. Voltage Noise Density vs. Frequency Figure 29. Input Offset Voltage vs. Common-Mode Voltage Rev. A | Page 9 of 16 04356-0-025 -50mV AD8603/AD8607/AD8609 1000 OUTPUT VOLTAGE TO SUPPLY RAIL (mV) 100 VS = 1.8V TA = 25C 80 60 OPEN-LOOP GAIN (dB) 100 VS = 0.9V RL = 100k CL = 20pF = 70 225 180 135 90 45 0 -45 -90 -135 -180 04356-0-030 40 20 0 -20 -40 -60 10 SOURCE SINK 1 0.1 04356-0-027 -80 -100 1 10 100 FREQUENCY (Hz) 1M 0.01 0.001 0.01 0.1 LOAD CURRENT (mA) 1 10 -225 10M Figure 30. Output Voltage to Supply Rail vs. Load Current Figure 33. Open-Loop Gain and Phase vs. Frequency 100 90 80 OUTPUT SWING (mV) 70 60 50 40 30 20 10 0 -40 -25 -10 5 35 20 50 65 TEMPERATURE (C) 80 95 110 04356-0-028 140 120 VS = 1.8V 100 VS = 1.8V VDD - VOH @ 1mA LOAD CMRR (dB) 80 60 40 20 0 -20 -40 -60 100 1k 10k FREQUENCY (Hz) 04356-0-031 VOL @ 1mA LOAD 125 100k Figure 31. Output Voltage Swing vs. Temperature Figure 34. Common-Mode Rejection Ratio vs. Frequency 60 VS = 1.8V TA = 25C AV = 1 OUTPUT SWING (VP-P) 1.8 VS= 1.8V VIN= 1.7V p-p T= 25C AV= 1 50 SMALL SIGNAL OVERSHOOT (%) 1.5 40 1.2 30 OS- 20 OS+ 04356-0-029 0.9 0.6 0 10 100 LOAD CAPACITANCE (pF) 1000 0.0 0.01 0.1 1 FREQUENCY (kHz) 10 100 Figure 32. Small Signal Overshoot vs. Load Capacitance Figure 35. Closed-Loop Output Voltage Swing vs. Frequency Rev. A | Page 10 of 16 04356-0-032 10 0.3 PHASE (Degree) AD8603/AD8607/AD8609 176 VOLTAGE NOISE DENSITY (nV/ Hz) VS = 1.8V RL = 10k CL = 200pF AV = 1 VOLTAGE (50mV/DIV) VS = 0.9V 154 132 110 88 66 44 22 0 0 1 2 3 4 5 6 7 FREQUENCY (kHz) 8 9 10 04356-0-048 TIME (4s/DIV) 04356-0-033 Figure 36. Small Signal Transient Figure 39. Voltage Noise Density 0 VS = 1.8V RL = 10k CL = 200pF AV = 1 VOLTAGE (500mV/DIV) -20 VS = 2.5V, 0.9V CHANNEL SEPARATION (dB) -40 -60 -80 -100 -120 -140 100 04356-A-043 04356-0-034 1k TIME (20s/DIV) 10k FREQUENCY (Hz) 100k 1M Figure 37. Large Signal Transient Figure 40. Channel Separation 168 VS = 0.9V VOLTAGE NOISE DENSITY (nV/ Hz) 140 112 84 56 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 FREQUENCY (kHz) Figure 38. Voltage Noise Density 04356-0-047 28 Rev. A | Page 11 of 16 AD8603/AD8607/AD8609 APPLICATIONS NO PHASE REVERSAL The AD8603/AD8607/AD8609 do not exhibit phase inversion even when the input voltage exceeds the maximum input common-mode voltage. Phase reversal can cause permanent damage to the amplifier, resulting in system lockups. The AD8603/AD8607/AD8609 can handle voltages of up to 1 V over the supply. The use of the snubber circuit is usually recommended for unity gain configurations. Higher gain configurations help improve the stability of the circuit. Figure 44 shows the same output response with the snubber in place. VS = 0.9V VIN = 100mV CL = 2nF RL = 10k VIN VS = 2.5V VIN = 6V p-p AV = 1 RL = 10k VOLTAGE (1V/DIV) VOUT 04356-0-037 Figure 42. Output Response to a 2 nF Capacitive Load, without Snubber VEE TIME (4s/DIV) Figure 41. No Phase Response V- V+ INPUT OVERVOLTAGE PROTECTION If a voltage 1 V higher than the supplies is applied at either input, the use of a limiting series resistor is recommended. If both inputs are used, each one should be protected with a series resistor. To ensure good protection, the current should be limited to a maximum of 5 mA. The value of the limiting resistor can be determined from the equation (VIN - VS)/(RS + 200 ) 5 mA 200mV + - VCC C S 47pF CL Figure 43. Snubber Network VSY = 0.9V VIN = 100mV CL = 2nF RL = 10k RS = 150 CS = 470pF DRIVING CAPACITIVE LOADS The AD8603/AD8607/AD8609 are capable of driving large capacitive loads without oscillating. Figure 42 shows the output of the AD8603/AD8607/AD8609 in response to a 100 mV input signal, with a 2 nF capacitive load. Although it is configured in positive unity gain (the worst case), the AD8603 shows less than 20% overshoot. Simple additional circuitry can eliminate ringing and overshoot. One technique is the snubber network, which consists of a series RC and a resistive load (see Figure 43). With the snubber in place, the AD8603/AD8607/AD8609 are capable of driving capacitive loads of 2 nF with no ringing and less than 3% overshoot. 04356-A-039 RS 150 Figure 44. Output Response to a 2 nF Capacitive Load, with Snubber Optimum values for RS and CS are determined empirically; Table 5 lists a few starting values. Table 5. Optimum Values for the Snubber Network CL (pF) 100~500 1500 1600~2000 RS () 500 100 400 CS (pF) 680 330 100 Rev. A | Page 12 of 16 04356-0-040 04356-0-038 AD8603/AD8607/AD8609 PROXIMITY SENSORS Proximity sensors can be capacitive or inductive and are used in a variety of applications. One of the most common applications is liquid level sensing in tanks. This is particularly popular in pharmaceutical environments where a tank must know when to stop filling or mixing a given liquid. In aerospace applications, these sensors detect the level of oxygen used to propel engines. Whether in a combustible environment or not, capacitive sensors generally use low voltage. The precision and low voltage of the AD8603/AD8607/AD8609 make the parts an excellent choice for such applications. R1 1k R2 VEE 99k VCC V- V+ AD8603 V+ V- U5 AD8541 04356-A-041 VIN VCC R3 1k VEE R4 99k Figure 45. High Gain Composite Amplifier R2 100k VEE AD8603 R1 1k VIN V- V+ COMPOSITE AMPLIFIERS A composite amplifier can provide a very high gain in applications where high closed-loop dc gains are needed. The high gain achieved by the composite amplifier comes at the expense of a loss in phase margin. Placing a small capacitor, CF, in the feedback in parallel with R2 (Figure 45) improves the phase margin. Picking CF = 50 pF yields a phase margin of about 45 for the values shown in Figure 45. A composite amplifier can be used to optimize dc and ac characteristics. Figure 46 shows an example using the AD8603 and the AD8541. This circuit offers many advantages. The bandwidth is increased substantially, and the input offset voltage and noise of the AD8541 become insignificant since they are divided by the high gain of the AD8603. The circuit of Figure 46 offers a high bandwidth (nearly double that of the AD8603), a high output current, and a very low power consumption of less than 100 A. VCC R3 1k VCC C2 V+ V- R4 Figure 46. Low Power Composite Amplifier Rev. A | Page 13 of 16 04356-A-042 100 AD8541 VEE C3 AD8603/AD8607/AD8609 BATTERY-POWERED APPLICATIONS The AD8603/AD8607/AD8609 are ideal for battery-powered applications. The parts are tested at 5 V, 3.3 V, 2.7 V, and 1.8 V and are suitable for various applications whether in single or dual supply. In addition to their low offset voltage and low input bias, the AD8603/AD8607/AD8609 have a very low supply current of 40 A, making the parts an excellent choice for portable electronics. The TSOT package allows the AD8603 to be used on smaller board spaces. network at the output to reduce the noise. The signal bandwidth can be calculated by 1/2R2C2 and the closed-loop bandwidth is the intersection point of the open-loop gain and the noise gain. The circuit shown in Figure 47 has a closed-loop bandwidth of 58 kHz and a signal bandwidth of 16 Hz. Increasing C2 to 50 pF yields a closed-loop bandwidth of 65 kHz, but only 3.2 Hz of signal bandwidth can be achieved. C2 10pF R2 1000M VCC PHOTODIODES Photodiodes have a wide range of applications from bar code scanners to precision light meters and CAT scanners. The very low noise and low input bias current of the AD8603/AD8607/ AD8609 make the parts very attractive amplifiers for I-V conversion applications. Figure 47 shows a simple photodiode circuit. The feedback capacitor helps the circuit maintain stability. The signal bandwidth can be increased at the expense of an increase in the total noise; a low-pass filter can be implemented by a simple RC AD8603 04356-0-044 R1 1000M C1 10pF VEE Figure 47. Photodiode Circuit Rev. A | Page 14 of 16 AD8603/AD8607/AD8609 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890) 8 5 4 4.00 (0.1574) 3.80 (0.1497) 1 6.20 (0.2440) 5.80 (0.2284) 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) 1.75 (0.0688) 1.35 (0.0532) 0.50 (0.0196) x 45 0.25 (0.0099) 0.51 (0.0201) COPLANARITY SEATING 0.31 (0.0122) 0.10 PLANE 8 0.25 (0.0098) 0 1.27 (0.0500) 0.40 (0.0157) 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN Figure 48. 8-Lead Standard Small Outline Package (SOIC) [R-8] Dimensions shown in millimeters and (inches) 2.90 BSC 5 4 1.60 BSC 1 2 3 2.80 BSC PIN 1 0.95 BSC 0.90 0.87 0.84 1.90 BSC 1.00 MAX 8 4 0.10 MAX 0.50 0.30 SEATING PLANE 0.20 0.08 0.60 0.45 0.30 COMPLIANT TO JEDEC STANDARDS MO-193AB Figure 49. 5-Lead Thin Small Outline Transistor Package [TSOT] (UJ-5) Dimensions in millimeters 3.00 BSC 8 5 3.00 BSC 4 4.90 BSC PIN 1 0.65 BSC 0.15 0.00 0.38 0.22 COPLANARITY 0.10 1.10 MAX 8 0 0.80 0.60 0.40 0.23 0.08 SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-187AA Figure 50. 8-Lead MSOP Package (RM-8) Dimensions in millimeters Rev. A | Page 15 of 16 AD8603/AD8607/AD8609 8.75 (0.3445) 8.55 (0.3366) 4.00 (0.1575) 3.80 (0.1496) 14 1 8 7 6.20 (0.2441) 5.80 (0.2283) 0.25 (0.0098) 0.10 (0.0039) COPLANARITY 0.10 1.27 (0.0500) BSC 1.75 (0.0689) 1.35 (0.0531) 0.50 (0.0197) x 45 0.25 (0.0098) 0.51 (0.0201) 0.31 (0.0122) SEATING PLANE 8 0.25 (0.0098) 0 1.27 (0.0500) 0.40 (0.0157) 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012AB CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN Figure 51. 14-Lead Standard Small Outline Package (SOIC) [R-14] Dimensions shown in millimeters and (inches) 5.10 5.00 4.90 14 8 4.50 4.40 4.30 1 7 6.40 BSC PIN 1 1.05 1.00 0.80 0.65 BSC 1.20 MAX 0.15 0.05 0.30 0.19 0.20 0.09 SEATING COPLANARITY PLANE 0.10 8 0 0.75 0.60 0.45 COMPLIANT TO JEDEC STANDARDS MO-153AB-1 Figure 52. 14-Lead Thin Shrink Small Outline Package (TSSOP) [RU-14] Dimensions shown in millimeters ORDERING GUIDE Model AD8603AUJ-R2 AD8603AUJ-REEL AD8603AUJ-REEL7 AD8607ARM-R2 AD8607ARM-REEL AD8607AR AD8607AR-REEL AD8607AR-REEL7 AD8609AR AD8609AR-REEL AD8609AR-REEL7 AD8609ARU AR8609ARU-REEL Temperature Range -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C Package Description 5-Lead TSOT-23 5-Lead TSOT-23 5-Lead TSOT-23 8-Lead MSOP 8-Lead MSOP 8-Lead SOIC 8-Lead SOIC 8-Lead SOIC 14-Lead SOIC 14-Lead SOIC 14-Lead SOIC 14-Lead TSSOP 14-Lead TSSOP Package Option UJ-5 UJ-5 UJ-5 RM-8 RM-8 R-8 R-8 R-8 R-14 R-14 R-14 RU-14 RU-14 Branding BFA BFA BFA A00 A00 (c) 2003 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C04356-0-10/03(A) Rev. A | Page 16 of 16 This datasheet has been download from: www..com Datasheets for electronics components. |
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