ANALOG DEVICES AD8664

Low Noise, Precision 16 V CMOS, Rail-to-Rail Operational Amplifiers AD8661/AD8662/AD8664 FEATURES PIN CONFIGURATIONS Low offset voltage: 100 μV maximum @ VS = 5 V NC 1 8 NC Low input bias current: 1 pA maximum NC 1 8NC AD8661 AD8661 –IN 2 7 V+ TOP VIEW –IN 2 7V+ Single-supply operation: 5 V to 16 V +IN 3 6 OUT (Not to Scale) +IN 3 6OUT V– 4 5 NC Low noise: 10 nV/√Hz V– 4 5NC Wide bandwidth: 4 MHz NC = NO CONNECT Unity-gain stable NC = NO CONNECT Small package options Figure 1. AD8661, 8-Lead SOIC_N Figure 2. AD8661, 8-Lead LFCSP_VD (R-8) (CP-8-2) 3 mm × 3 mm 8-lead LFCSP 8-lead MSOP and narrow SOIC OUT A 1 8 V+ OUT A 1 8 V+ 14-lead TSSOP and narrow SOIC AD8662 AD8662 –IN A 2 7 OUT B –IN A 2 7 OUT B TOP VIEW TOP VIEW +IN A 3 6 –IN B +IN A 3 6 –IN B (Not to Scale) (Not to Scale) APPLICATIONS V– 4 5 +IN B V– 4 5 +IN B Sensors Figure 3. AD8662, 8-Lead SOIC_N Figure 4. AD8662, 8-Lead MSOP Medical equipment (R-8) (RM-8) Consumer audio Photodiode amplification OUT A 1 14 OUT D OUT A 1 14 OUT D –IN A 2 13 –IN D –IN A 2 13 –IN D ADC drivers AD8664 AD8664 +IN A 3 12 +IN D +IN D TOP VIEW +IN A 3 12 TOP VIEW (Not to Scale) (Not to Scale) V+ 4 11 V– V+ 4 11 V– +IN B 5 10 +IN B 5 10 +IN C +IN C –IN B 6 9 –IN C –IN B 6 9 –IN C OUT B 7 8 OUT C OUT B 7 8 OUT C Figure 5. AD8664, 14-Lead SOIC_N Figure 6. AD8664, 14-Lead TSSOP (R-14) (RU-14) GENERAL DESCRIPTION monitoring equipment can take advantage of the high input The AD8661/AD8662/AD8664 are rail-to-rail output, single- impedance, low voltage and current noise, and wide bandwidth. supply amplifiers that use the Analog Devices, Inc., patented DigiTrim® trimming technique to achieve low offset voltage. The single AD8661 is available in a narrow 8-lead SOIC The AD866x series features extended operating ranges, with package and a very thin, dual lead, 8-lead LFCSP. The AD8661 supply voltages up to 16 V. It also features low input bias SOIC_N package is specified over the extended industrial current, wide signal bandwidth, and low input voltage and temperature range of −40°C to +125°C. The AD8661 current noise. LFCSP_VD is specified over the industrial temperature range of −40°C to +85°C. The AD8662 is available in a narrow 8-lead The combination of low offset, very low input bias current, and SOIC package and an 8-lead MSOP, both specified over the a wide supply range makes these amplifiers useful in a wide extended industrial temperature range of −40°C to +125°C. The variety of applications usually associated with higher priced AD8664 is available in a narrow 14-lead SOIC package and a JFET amplifiers. Systems using high impedance sensors, such as 14-lead TSSOP, both with an extended industrial temperature photodiodes, benefit from the combination of low input bias range of −40°C to +125°C. current, low noise, low offset, and wide bandwidth. The wide operating voltage range meets the demands of high performance ADCs and DACs. Audio applications and medical Rev. D 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 05200-002 05200-036 05200-001 05200-035 05200-037 05200-004 AD8661/AD8662/AD8664 TABLE OF CONTENTS Features .............................................................................................. 1 AD8661 Electrical Characteristics—LFCSP_VD Only............5 Applications....................................................................................... 1 AD8661 Electrical Characteristics—LFCSP_VD Only............6 Pin Configurations ........................................................................... 1 Absolute Maximum Ratings ............................................................7 General Description ......................................................................... 1 Thermal Resistance.......................................................................7 Revision History ............................................................................... 2 ESD Caution...................................................................................7 Specifications..................................................................................... 3 Typical Performance Characteristics ..............................................8 AD8661/AD8662/AD8664 Electrical Characteristics— Outline Dimensions....................................................................... 13 SOIC_N, MSOP, and TSSOP ...................................................... 3 Ordering Guide .......................................................................... 15 AD8661/AD8662/AD8664 Electrical Characteristics— SOIC_N, MSOP, and TSSOP ...................................................... 4 REVISION HISTORY 7/06—Rev. C to Rev. D Changes to Table 1.............................................................................3 Added AD8664 ...................................................................Universal Changes to Table 2.............................................................................4 Added 14-Lead SOIC_N and 14-Lead TSSOP ...............Universal Changes to Table 3.............................................................................5 Changes to Features.......................................................................... 1 Changes to Table 4.............................................................................6 Changes to Table 1............................................................................ 3 Changes to Table 5.............................................................................7 Changes to Table 2............................................................................ 4 Updated Outline Dimensions....................................................... 13 Changes to Table 3............................................................................ 5 Changes to Ordering Guide .......................................................... 13 Changes to Table 4............................................................................ 6 1/06—Rev. 0 to Rev. A Changes to Table 5 and Table 6....................................................... 7 Added LFCSP_VD .............................................................Universal Changes to Figure 29...................................................................... 11 Changes to Table 1.............................................................................3 Updated Outline Dimensions ....................................................... 13 Changes to Table 2.............................................................................4 Changes to Ordering Guide .......................................................... 15 Changes to Ordering Guide .......................................................... 13 5/06—Rev. B to Rev. C 9/05—Revision 0: Initial Version Changes to Ordering Guide .......................................................... 13 3/06—Rev. A to Rev. B Added AD8662 ...................................................................Universal Added MSOP ......................................................................Universal Rev. D | Page 2 of 16 AD8661/AD8662/AD8664 SPECIFICATIONS AD8661/AD8662/AD8664 ELECTRICAL CHARACTERISTICS—SOIC_N, MSOP, AND TSSOP V = 5.0 V, V = V /2, T = 25°C, unless otherwise noted. S CM S A Table 1. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage VOS VCM = VS/2 30 100 μV AD8661 −40°C < TA < +85°C 1000 μV AD8661 −40°C < TA < +125°C 1400 μV AD8662 −40°C < T < +125°C 1000 μV A AD8664 −40°C < T < +125°C 1200 μV A Input Bias Current I 0.3 1 pA B −40°C < TA < +85°C 50 pA −40°C < TA < +125°C 300 pA Input Offset Current IOS 0.2 0.5 pA −40°C < T < +85°C 20 pA A −40°C < T < +125°C 75 pA A Input Voltage Range −0.1 +3.0 V Common-Mode Rejection Ratio CMRR VCM = −0.1 V to +3.0 V 85 100 dB −40°C < TA < +125°C 80 100 dB Large Signal Voltage Gain A R = 2 kΩ, V = 0.5 V to 4.5 V 100 220 V/mV VO L O Offset Voltage Drift TCV OS AD8661 −40°C < T < +125°C 3 10 μV/°C A AD8662, AD8664 −40°C < TA < +125°C 2 9 μV/°C OUTPUT CHARACTERISTICS Output Voltage High VOH IL = 1 mA 4.85 4.93 V −40°C < TA < +125°C 4.80 V Output Voltage Low V I = 1 mA 50 100 mV OL L −40°C < T < +125°C 110 mV A Short-Circuit Current I ±19 mA SC Closed-Loop Output Impedance ZOUT f = 1 MHz, AV = 1 50 Ω POWER SUPPLY Supply Current per Amplifier ISY VO = VS/2 1.15 1.40 mA −40°C < TA < +125°C 2.0 mA DYNAMIC PERFORMANCE Slew Rate SR RL = 2 kΩ 3.5 V/μs Gain Bandwidth Product GBP 4 MHz Phase Margin Φ 65 Degrees O NOISE PERFORMANCE Peak-to-Peak Noise e p-p f = 0.1 Hz to 10 Hz 2.5 μV p-p n Voltage Noise Density en f = 1 kHz 12 nV/√Hz f = 10 kHz 10 nV/√Hz Current Noise Density in f = 1 kHz 0.1 pA/√Hz Rev. D | Page 3 of 16 AD8661/AD8662/AD8664 AD8661/AD8662/AD8664 ELECTRICAL CHARACTERISTICS—SOIC_N, MSOP, AND TSSOP VS = 16.0 V, VCM = VS/2, TA = 25°C, unless otherwise noted. Table 2. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V V = V/2 50 160 μV OS CM S AD8661 −40°C < T < +85°C 1000 μV A AD8661 −40°C < T < +125°C 1400 μV A AD8662 −40°C < TA < +125°C 1000 μV AD8664 −40°C < TA < +125°C 1200 μV Input Bias Current I 0.3 1 pA B −40°C < T < +85°C 50 pA A −40°C < T < +125°C 300 pA A Input Offset Current IOS 0.2 0.5 pA −40°C < TA < +85°C 20 pA −40°C < TA < +125°C 75 pA Input Voltage Range −0.1 +14.0 V Common-Mode Rejection Ratio CMRR V = −0.1 V to +14.0 V 90 110 dB CM −40°C < T < +125°C 90 110 dB A Large Signal Voltage Gain AVO RL = 2 kΩ, VO = 0.5 V to 15.5 V 200 360 V/mV Offset Voltage Drift TCVOS AD8661 −40°C < TA < +125°C 3 10 μV/°C AD8662, AD8664 −40°C < T < +125°C 2 9 μV/°C A OUTPUT CHARACTERISTICS Output Voltage High V I = 1 mA 15.93 15.97 V OH L I = 10 mA 15.60 15.70 V L −40°C < TA < +125°C 15.50 V Output Voltage Low VOL IL = 1 mA 24 50 mV IL = 10 mA 190 300 mV −40°C < T < +125°C 350 mV A Short-Circuit Current I ±140 mA SC Closed-Loop Output Impedance ZOUT f = 1 MHz, AV = 1 45 Ω POWER SUPPLY Power Supply Rejection Ratio PSRR VS = 5 V to 16 V 95 110 dB −40°C < TA < +125°C 95 115 dB Supply Current per Amplifier I V = V /2 1.25 1.55 mA SY O S −40°C < T < +125°C 2.1 mA A DYNAMIC PERFORMANCE Slew Rate SR R = 2 kΩ 3.5 V/μs L Gain Bandwidth Product GBP 4 MHz Phase Margin ΦO 65 Degrees NOISE PERFORMANCE Peak-to-Peak Noise en p-p f = 0.1 Hz to 10 Hz 2.5 μV p-p Voltage Noise Density en f = 1 kHz 12 nV/√Hz f = 10 kHz 10 nV/√Hz Current Noise Density i f = 1 kHz 0.1 pA/√Hz n Rev. D | Page 4 of 16 AD8661/AD8662/AD8664 AD8661 ELECTRICAL CHARACTERISTICS—LFCSP_VD ONLY VS = 5.0 V, VCM = VS/2, TA = 25°C, unless otherwise noted. Table 3. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V V = V/2 50 300 μV OS CM S −40°C < T < +85°C 2000 μV A Input Bias Current I 0.3 1 pA B −40°C < TA < +85°C 50 pA Input Offset Current IOS 0.2 0.5 pA −40°C < T < +85°C 20 pA A Input Voltage Range −0.1 +3.0 V Common-Mode Rejection Ratio CMRR V = −0.1 V to +3.0 V 85 100 dB CM −40°C < TA < +85°C 80 100 dB Large Signal Voltage Gain AVO RL = 2 kΩ, VO = 0.5 V to 4.5 V 100 240 V/mV Offset Voltage Drift TCVOS −40°C < TA < +85°C 4 17 μV/°C OUTPUT CHARACTERISTICS Output Voltage High VOH IL = 1 mA 4.85 4.93 V −40°C < T < +85°C 4.80 V A Output Voltage Low V I = 1 mA 50 100 mV OL L −40°C < TA < +85°C 120 mV Short-Circuit Current ISC ±19 mA Closed-Loop Output Impedance ZOUT f = 1 MHz, AV = 1 65 Ω POWER SUPPLY Supply Current per Amplifier I V = V /2 1.15 1.40 mA SY O S −40°C < T < +85°C 1.8 mA A DYNAMIC PERFORMANCE Slew Rate SR R = 2 kΩ 3.5 V/μs L Gain Bandwidth Product GBP 4 MHz Phase Margin ΦO 65 Degrees NOISE PERFORMANCE Peak-to-Peak Noise en p-p f = 0.1 Hz to 10 Hz 2.5 μV p-p Voltage Noise Density en f = 1 kHz 12 nV/√Hz f = 10 kHz 10 nV/√Hz Current Noise Density i f = 1 kHz 0.1 pA/√Hz n Rev. D | Page 5 of 16 AD8661/AD8662/AD8664 AD8661 ELECTRICAL CHARACTERISTICS—LFCSP_VD ONLY VS = 16.0 V, VCM = VS/2, TA = 25°C, unless otherwise noted. Table 4. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V V = V/2 50 300 μV OS CM S −40°C < T < +85°C 2000 μV A Input Bias Current I 0.3 1 pA B −40°C < TA < +85°C 50 pA Input Offset Current IOS 0.2 0.5 pA −40°C < T < +85°C 20 pA A Input Voltage Range −0.1 +14.0 V Common-Mode Rejection Ratio CMRR V = −0.1 V to +14.0 V 90 110 dB CM −40°C < TA < +85°C 90 110 dB Large Signal Voltage Gain AVO RL = 2 kΩ, VO = 0.5 V to 15.5 V 200 420 V/mV Offset Voltage Drift TCVOS −40°C < TA < +85°C 4 17 μV/°C OUTPUT CHARACTERISTICS Output Voltage High VOH IL = 1 mA 15.95 15.97 V I = 10 mA 15.60 15.70 V L −40°C < T < +85°C 15.50 V A Output Voltage Low VOL IL = 1 mA 24 50 mV IL = 10 mA 210 350 mV −40°C < TA < +85°C 400 mV Short-Circuit Current I ±140 mA SC Closed-Loop Output Impedance Z f = 1 MHz, A = 1 45 Ω OUT V POWER SUPPLY Power Supply Rejection Ratio PSRR V = 5 V to 16 V 95 110 dB S −40°C < TA < +85°C 95 115 dB Supply Current per Amplifier ISY VO = VS/2 1.25 1.55 mA −40°C < TA < +85°C 1.9 mA DYNAMIC PERFORMANCE Slew Rate SR R = 2 kΩ 3.5 V/μs L Gain Bandwidth Product GBP 4 MHz Phase Margin Φ 65 Degrees O NOISE PERFORMANCE Peak-to-Peak Noise en p-p f = 0.1 Hz to 10 Hz 2.5 μV p-p Voltage Noise Density en f = 1 kHz 12 nV/√Hz f = 10 kHz 10 nV/√Hz Current Noise Density i f = 1 kHz 0.1 pA/√Hz n Rev. D | Page 6 of 16 AD8661/AD8662/AD8664 ABSOLUTE MAXIMUM RATINGS Table 5. THERMAL RESISTANCE Parameter Rating θ is specified for the worst-case conditions, that is, a device JA Supply Voltage 18 V soldered in a circuit board for surface-mount packages. Input Voltage −0.1 V to VS Table 6. Thermal Resistance Differential Input Voltage 18 V Package Type θ θ Unit JA JC Output Short-Circuit Duration to GND Indefinite 8-Lead SOIC_N 121 43 °C/W Storage Temperature Range −60°C to +150°C 1 1 8-Lead LFCSP_VD 75 18 °C/W Operating Temperature Range 8-Lead MSOP 142 44 °C/W R-8, RM-8, R-14, and RU-14 −40°C to +125°C 14-Lead SOIC_N 88.2 56.3 °C/W CP-8-2 −40°C to +85°C 14-Lead TSSOP 114 23.3 °C/W Junction Temperature Range −65°C to +150°C Lead Temperature, Soldering (60 sec) 300°C 1 Exposed pad soldered to application board. 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 indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 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 this product features 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. D | Page 7 of 16 AD8661/AD8662/AD8664 TYPICAL PERFORMANCE CHARACTERISTICS 6000 300 V = 16V S T = 25°C A V = 5V AND 16V S V = –0.1V TO +14V CM 5000 250 4000 200 3000 150 2000 100 1000 50 0 0 –150 –100 –50 0 50 100 150 –40 –20 0 20 40 60 80 100 120 V (µV) TEMPERATURE (°C) OS Figure 7. Input Offset Voltage Distribution Figure 10. Input Bias Current vs. Temperature 16 10k V = 16V S V = 16V DD T = –40°C TO +125°C A 14 V =8V CM 1k 12 10 100 V –V DD OH 8 SOURCING V OL 10 6 SINKING 4 1 2 0 0.1 01234567 89 10 0.001 0.01 0.1 1 10 100 TCV (µV/°C) LOAD CURRENT (mA) OS Figure 11. Output Swing Saturation Voltage vs. Load Current Figure 8. Offset Voltage Drift Distribution 110 300 I = 1mA L V =16V S 100 T =25°C A 200 90 (V – V ) AT V = 5V DD OH S 80 100 70 V AT V = 5V OL S 60 0 50 (V – V ) AT V = 16V DD OH S 40 –100 30 V AT V = 16V 20 OL S –200 10 0 –300 –40 –20 0 20 40 60 80 100 120 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TEMPERATURE (°C) COMMON-MODE VOLTAGE (V) Figure 9. Input Offset Voltage vs. Common-Mode Voltage Figure 12. Output Swing Saturation Voltage vs. Temperature, IL = 1 mA Rev. D | Page 8 of 16 NUMBER OF AMPLIFIERS V (µV) NUMBER OF AMPLIFIERS OS 05200-023 05200-017 05200-026 OUTPUT SATURATION VOLTAGE (mV) INPUT BIAS CURRENT (pA) OUTPUT SATURATION VOLTAGE (mV) 05200-019 05200-032 05200-030 AD8661/AD8662/AD8664 450 140 I = 10mA V =5VAND16V L S 400 120 350 100 (V – V ) AT V = 16V DD OH S 300 80 250 AT V = 16V V OL S 200 60 150 40 100 20 50 0 0 –40 –20 0 20 40 60 80 100 120 100 1k 10k 100k 1M 10M TEMPERATURE (°C) FREQUENCY (Hz) Figure 13. Output Swing Saturation Voltage vs. Temperature, IL = 10 mA Figure 16. CMRR vs. Frequency 80 0 140 V = 5V AND 16V S V = 5V AND 16V S R =100kΩ L C =15pF L 60 45 120 40 90 100 PHASE 20 135 80 GAIN 0 180 60 –20 225 40 –40 270 20 –60 315 0 10k 100k 1M 10M 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY (Hz) Figure 14. Open-Loop Gain and Phase Shift vs. Frequency Figure 17. PSRR vs. Frequency 1k 70 V = ±2.5 AND ±8V V = 16V S DD G = +1 60 R = 100kΩ L 100 50 A = 100 V 10 40 A = 1 V A = 10 V 30 1 OS+ 20 0.1 OS– 10 0.01 0 100 1k 10k 100k 1M 10M 10 100 1k FREQUENCY (Hz) LOAD CAPACITANCE (pF) Figure 15. Closed-Loop Output Impedance vs. Frequency Figure 18. Small Signal Overshoot vs. Load Capacitance Rev. D | Page 9 of 16 OPEN-LOOP GAIN (dB) Z (Ω) OUTPUT SATURATION VOLTAGE (mV) OUT 05200-007 05200-031 OPEN-LOOP PHASE SHIFT (Degrees) 05200-003 PSRR (dB) CMRR (dB) SMALL SIGNAL OVERSHOOT (%) 05200-005 05200-006 05200-015 AD8661/AD8662/AD8664 1.8 100 V = 5V AND 16V S V = 100mV 80 IN 1.6 C = 200pF L G= +1 60 1.4 V =16V S 40 1.2 V =5V S 20 1.0 0 0.8 –20 0.6 –40 0.4 –60 0.2 –80 0 –100 –40 –20 0 20 40 60 80 100 120 TIME (0.5µs/DIV) TEMPERATURE (°C) Figure 19. Supply Current vs. Temperature Figure 22. Small Signal Transient Response 1400 8 V = 16V S C = 200pF L 6 1200 4 1000 2 800 0 600 –2 400 –4 200 –6 0 –8 0 2 4 6 8 10 12 14 16 18 TIME (2µs/DIV) V (V) S Figure 23. Large Signal Transient Response Figure 20. Supply Current vs. Supply Voltage (Dual-Supply Configuration), TA = 25°C 2.0 V = 16V S V = ±2.5V AND ±8V S 100mV G = –100 V IN 1.5 1.0 0V 0.5 0V 0 –0.5 –1.0 V O –8V –1.5 –2.0 TIME (5µs/DIV) TIME (1s/DIV) Figure 24. Positive Overload Recovery Figure 21. 0.1 Hz to 10 Hz Input Voltage Noise Rev. D | Page 10 of 16 PEAK-TO-PEAK NOISE (µV) I (mA) I (µA) SY SY 05200-009 05200-029 05200-027 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (mV) 05200-013 05200-034 05200-010 AD8661/AD8662/AD8664 16 V =5V S 0V T = –40°C TO +125°C A 14 V =2.5V V = 16V CM S G = –100 12 V IN 10 –100mV 8V 8 V O 6 4 0V 2 0 TIME (5µs/DIV) 0 1 2 3 4 5 6 7 8 9 10 TCV (µV/°C) OS Figure 25. Negative Overload Recovery Figure 28. Offset Voltage Drift Distribution 1k 200 V = 5V S V = ±2.5V AND ±8V S T = 25°C A 150 100 100 50 0 –50 10 –100 –150 1 –200 1 10 100 1k 10k –0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 FREQUENCY (Hz) COMMON-MODE VOLTAGE (V) Figure 26. Voltage Noise Density vs. Frequency Figure 29. Input Offset Voltage vs. Common-Mode Voltage 1800 10k V =5V S V =5V DD T = 25°C A 1600 V = –0.1V TO +3V CM 1k 1400 1200 100 V –V DD OH 1000 SOURCING V OL 800 SINKING 10 600 400 1 200 0 0.1 –150 –100 –50 0 50 100 150 0.001 0.01 0.1 1 10 20 V (µV) LOAD CURRENT (mA) OS Figure 30. Output Swing Saturation Voltage vs. Load Current Figure 27. Input Offset Voltage Distribution Rev. D | Page 11 of 16 NUMBER OF AMPLIFIERS VOLTAGE NOISE DENSITY (nV/ Hz) 05200-008 05200-014 05200-024 OUTPUT SATURATION VOLTAGE (mV) NUMBER OF AMPLIFIERS V (µV) OS 05200-020 05200-022 05200-021 AD8661/AD8662/AD8664 1k V IN V = 5V V = 16V DD S G = +1 100 V O A = 100 V 10 A = 1 V A = 10 V 1 0.1 0.01 TIME (0.2µs/DIV) 100 1k 10k 100k 1M 10M FREQUENCY (Hz) Figure 31. Closed-Loop Output Impedance vs. Frequency Figure 33. No Phase Reversal 2.5 V =±2.5V S C = 200pF 2.0 L G=+1 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 –2.5 TIME (1µs/DIV) Figure 32. Large Signal Transient Response Rev. D | Page 12 of 16 OUTPUT VOLTAGE (V) Z (Ω) OUT 05200-011 05200-033 OUTPUT VOLTAGE (2V/DIV) 05200-012 AD8661/AD8662/AD8664 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890) 85 6.20 (0.2440) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) 0.50 (0.0196) 45° BSC 1.75 (0.0688) 0.25 (0.0099) 1.35 (0.0532) 0.25 (0.0098) 8° 0.10 (0.0040) 0° COPLANARITY 0.51 (0.0201) 1.27 (0.0500) 0.10 0.31 (0.0122) 0.25 (0.0098) SEATING 0.40 (0.0157) 0.17 (0.0067) PLANE COMPLIANT TO JEDEC STANDARDS MS-012-AA 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 34. 8-Lead Small Outline Package [SOIC_N] Narrow Body (R-8) Dimensions shown in millimeters and (inches) 0.50 0.40 0.30 3.00 0.60 MAX PIN 1 BSC SQ INDICATOR 1 8 PIN 1 2.75 1.89 TOP 1.50 INDICATOR BSC SQ 1.74 VIEW REF 0.50 1.59 BSC 5 4 1.60 0.70 MAX 1.45 12° MAX 0.90 MAX 0.65 TYP 1.30 0.85 NOM 0.05 MAX 0.01 NOM SEATING 0.30 0.20 REF PLANE 0.23 0.18 Figure 35. 8-Lead Lead Frame Chip Scale Package [LFCSP_VD] 3 mm x 3 mm Body, Very Thin, Dual Lead (CP-8-2) Dimensions shown in millimeters Rev. D | Page 13 of 16 060506-A AD8661/AD8662/AD8664 3.20 3.00 2.80 8 5 5.15 3.20 4.90 3.00 4.65 1 2.80 4 PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 0.80 8° 0.15 0.38 0.60 0.23 0° 0.00 0.22 0.40 0.08 COPLANARITY SEATING 0.10 PLANE COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 36. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters 8.75 (0.3445) 8.55 (0.3366) 8 14 6.20 (0.2441) 4.00 (0.1575) 1 5.80 (0.2283) 3.80 (0.1496) 7 1.27 (0.0500) 0.50 (0.0197) 45° BSC 0.25 (0.0098) 1.75 (0.0689) 0.25 (0.0098) 1.35 (0.0531) 8° 0.10 (0.0039) 0° COPLANARITY SEATING 1.27 (0.0500) 0.10 0.51 (0.0201) PLANE 0.25 (0.0098) 0.40 (0.0157) 0.31 (0.0122) 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012-AB 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 37. 14-Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-14) Dimensions shown in millimeters and (inches) 5.10 5.00 4.90 14 8 4.50 6.40 4.40 BSC 4.30 1 7 PIN 1 0.65 1.05 BSC 1.00 0.20 1.20 0.80 0.75 0.09 MAX 8° 0.60 0.15 0.30 0° 0.45 SEATING 0.05 0.19 COPLANARITY PLANE 0.10 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 Figure 38. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters Rev. D | Page 14 of 16 060606-A AD8661/AD8662/AD8664 ORDERING GUIDE Model Temperature Range Package Description Package Option Branding 1 AD8661ARZ −40°C to +125°C 8-Lead SOIC_N R-8 1 AD8661ARZ-REEL −40°C to +125°C 8-Lead SOIC_N R-8 1 AD8661ARZ-REEL7 −40°C to +125°C 8-Lead SOIC_N R-8 1 AD8661ACPZ-R2 −40°C to +85°C 8-Lead LFCSP_VD CP-8-2 A0M 1 AD8661ACPZ-REEL −40°C to +85°C 8-Lead LFCSP_VD CP-8-2 A0M 1 AD8661ACPZ-REEL7 −40°C to +85°C 8-Lead LFCSP_VD CP-8-2 A0M 1 AD8662ARZ −40°C to +125°C 8-Lead SOIC_N R-8 1 AD8662ARZ-REEL −40°C to +125°C 8-Lead SOIC_N R-8 1 AD8662ARZ-REEL7 −40°C to +125°C 8-Lead SOIC_N R-8 1 AD8662ARMZ-R2 −40°C to +125°C 8-Lead MSOP RM-8 A10 1 AD8662ARMZ-REEL −40°C to +125°C 8-Lead MSOP RM-8 A10 1 AD8664ARZ −40°C to +125°C 14-Lead SOIC_N R-14 1 AD8664ARZ-REEL −40°C to +125°C 14-Lead SOIC_N R-14 1 AD8664ARZ-REEL7 −40°C to +125°C 14-Lead SOIC_N R-14 1 AD8664ARUZ −40°C to +125°C 14-Lead TSSOP RU-14 1 AD8664ARUZ-REEL −40°C to +125°C 14-Lead TSSOP RU-14 1 Z = Pb-free part. Rev. D | Page 15 of 16 AD8661/AD8662/AD8664 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05200-0-7/06(D) Rev. D | Page 16 of 16