AD8661

Low Noise, Precision 16 V CMOS, Rail-to-Rail Operational Amplifiers AD8661/AD8662/AD8664 FEATURES Low offset voltage: 100 μV maximum @ VS = 5 V Low input bias current: 1 pA maximum Single-supply operation: 5 V to 16 V Low noise: 10 nV/√Hz Wide bandwidth: 4 MHz Unity-gain stable Small package options 3 mm × 3 mm 8-lead LFCSP 8-lead MSOP and narrow SOIC 14-lead TSSOP and narrow SOIC NC 1 –IN 2 PIN CONFIGURATIONS 8 NC NC 1 –IN 2 05200-002 V+ TOP VIEW +IN 3 (Not to Scale) 6 OUT V– 4 5 NC 7 AD8661 AD8661 8 NC 7 V+ 6 OUT 5 NC 05200-035 +IN 3 V– 4 NC = NO CONNECT NC = NO CONNECT Figure 1. AD8661, 8-Lead SOIC_N (R-8) OUT A 1 –IN A 2 8 Figure 2. AD8661, 8-Lead LFCSP_VD (CP-8-2) OUT A 1 –IN A 2 +IN A 3 V– 4 8 V+ OUT B 05200-001 5 +IN B Sensors Medical equipment Consumer audio Photodiode amplification ADC drivers Figure 3. AD8662, 8-Lead SOIC_N (R-8) OUT A 1 –IN A 2 +IN A 3 +IN B 5 –IN B 6 OUT B 7 14 OUT D Figure 4. AD8662, 8-Lead MSOP (RM-8) OUT A 1 –IN A 2 +IN A 3 +IN B 5 –IN B 6 OUT B 7 14 OUT D –IN D AD8664 13 –IN D AD8664 13 12 +IN D TOP VIEW V+ 4 (Not to Scale) 11 V– 10 +IN C 9 8 12 +IN D TOP VIEW V+ 4 (Not to Scale) 11 V– 10 9 8 +IN C –IN C OUT C 05200-037 –IN C OUT C 05200-036 Figure 5. AD8664, 14-Lead SOIC_N (R-14) Figure 6. AD8664, 14-Lead TSSOP (RU-14) GENERAL DESCRIPTION The AD8661/AD8662/AD8664 are rail-to-rail output, singlesupply amplifiers that use the Analog Devices, Inc., patented DigiTrim® trimming technique to achieve low offset voltage. The AD866x series features extended operating ranges, with supply voltages up to 16 V. It also features low input bias current, wide signal bandwidth, and low input voltage and current noise. The combination of low offset, very low input bias current, and a wide supply range makes these amplifiers useful in a wide variety of applications usually associated with higher priced JFET amplifiers. Systems using high impedance sensors, such as photodiodes, benefit from the combination of low input bias 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 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. monitoring equipment can take advantage of the high input impedance, low voltage and current noise, and wide bandwidth. The single AD8661 is available in a narrow 8-lead SOIC package and a very thin, dual lead, 8-lead LFCSP. The AD8661 SOIC_N package is specified over the extended industrial temperature range of −40°C to +125°C. The AD8661 LFCSP_VD is specified over the industrial temperature range of −40°C to +85°C. The AD8662 is available in a narrow 8-lead SOIC package and an 8-lead MSOP, both specified over the extended industrial temperature range of −40°C to +125°C. The AD8664 is available in a narrow 14-lead SOIC package and a 14-lead TSSOP, both with an extended industrial temperature range of −40°C to +125°C. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. 05200-004 APPLICATIONS TOP VIEW +IN A 3 (Not to Scale) 6 –IN B V– 4 5 +IN B AD8662 7 AD8662 TOP VIEW (Not to Scale) V+ OUT B –IN B 7 6 AD8661/AD8662/AD8664 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Pin Configurations ........................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 AD8661/AD8662/AD8664 Electrical Characteristics— SOIC_N, MSOP, and TSSOP ...................................................... 3 AD8661/AD8662/AD8664 Electrical Characteristics— SOIC_N, MSOP, and TSSOP ...................................................... 4 AD8661 Electrical Characteristics—LFCSP_VD Only............5 AD8661 Electrical Characteristics—LFCSP_VD Only............6 Absolute Maximum Ratings ............................................................7 Thermal Resistance .......................................................................7 ESD Caution...................................................................................7 Typical Performance Characteristics ..............................................8 Outline Dimensions ....................................................................... 13 Ordering Guide .......................................................................... 15 REVISION HISTORY 7/06—Rev. C to Rev. D Added AD8664 ...................................................................Universal Added 14-Lead SOIC_N and 14-Lead TSSOP ...............Universal Changes to Features.......................................................................... 1 Changes to Table 1............................................................................ 3 Changes to Table 2............................................................................ 4 Changes to Table 3............................................................................ 5 Changes to Table 4............................................................................ 6 Changes to Table 5 and Table 6....................................................... 7 Changes to Figure 29...................................................................... 11 Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 15 5/06—Rev. B to Rev. C Changes to Ordering Guide .......................................................... 13 3/06—Rev. A to Rev. B Added AD8662 ...................................................................Universal Added MSOP ......................................................................Universal Changes to Table 1.............................................................................3 Changes to Table 2.............................................................................4 Changes to Table 3.............................................................................5 Changes to Table 4.............................................................................6 Changes to Table 5.............................................................................7 Updated Outline Dimensions....................................................... 13 Changes to Ordering Guide .......................................................... 13 1/06—Rev. 0 to Rev. A Added LFCSP_VD .............................................................Universal Changes to Table 1.............................................................................3 Changes to Table 2.............................................................................4 Changes to Ordering Guide .......................................................... 13 9/05—Revision 0: Initial Version Rev. D | Page 2 of 16 AD8661/AD8662/AD8664 SPECIFICATIONS AD8661/AD8662/AD8664 ELECTRICAL CHARACTERISTICS—SOIC_N, MSOP, AND TSSOP VS = 5.0 V, VCM = VS/2, TA = 25°C, unless otherwise noted. Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage AD8661 AD8661 AD8662 AD8664 Input Bias Current Symbol VOS Conditions VCM = VS/2 −40°C < TA < +85°C −40°C < TA < +125°C −40°C < TA < +125°C −40°C < TA < +125°C −40°C < TA < +85°C −40°C < TA < +125°C Input Offset Current IOS −40°C < TA < +85°C −40°C < TA < +125°C Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift AD8661 AD8662, AD8664 OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Current Closed-Loop Output Impedance POWER SUPPLY Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density CMRR AVO TCVOS VCM = −0.1 V to +3.0 V −40°C < TA < +125°C RL = 2 kΩ, VO = 0.5 V to 4.5 V −40°C < TA < +125°C −40°C < TA < +125°C VOH VOL ISC ZOUT ISY I L = 1 mA −40°C < TA < +125°C IL = 1 mA −40°C < TA < +125°C f = 1 MHz, AV = 1 VO = VS/2 −40°C < TA < +125°C RL = 2 kΩ 4.85 4.80 −0.1 85 80 100 100 100 220 3 2 4.93 50 ±19 50 1.15 1.40 2.0 100 110 10 9 0.2 Min Typ 30 Max 100 1000 1400 1000 1200 1 50 300 0.5 20 75 +3.0 Unit μV μV μV μV μV pA pA pA pA pA pA V dB dB V/mV μV/°C μV/°C V V mV mV mA Ω mA mA V/μs MHz Degrees μV p-p nV/√Hz nV/√Hz pA/√Hz IB 0.3 SR GBP ΦO en p-p en in 3.5 4 65 2.5 12 10 0.1 f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz f = 1 kHz 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 INPUT CHARACTERISTICS Offset Voltage AD8661 AD8661 AD8662 AD8664 Input Bias Current Symbol VOS Conditions VCM = VS/2 −40°C < TA < +85°C −40°C < TA < +125°C −40°C < TA < +125°C −40°C < TA < +125°C −40°C < TA < +85°C −40°C < TA < +125°C Input Offset Current IOS −40°C < TA < +85°C −40°C < TA < +125°C Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift AD8661 AD8662, AD8664 OUTPUT CHARACTERISTICS Output Voltage High CMRR AVO TCVOS VCM = −0.1 V to +14.0 V −40°C < TA < +125°C RL = 2 kΩ, VO = 0.5 V to 15.5 V −40°C < TA < +125°C −40°C < TA < +125°C VOH I L = 1 mA IL = 10 mA −40°C < TA < +125°C IL = 1 mA IL = 10 mA −40°C < TA < +125°C f = 1 MHz, AV = 1 VS = 5 V to 16 V −40°C < TA < +125°C VO = VS/2 −40°C < TA < +125°C RL = 2 kΩ 95 95 15.93 15.60 15.50 −0.1 90 90 200 110 110 360 3 2 15.97 15.70 24 190 ±140 45 110 115 1.25 50 300 350 10 9 0.2 Min Typ 50 Max 160 1000 1400 1000 1200 1 50 300 0.5 20 75 +14.0 Unit μV μV μV μV μV pA pA pA pA pA pA V dB dB V/mV μV/°C μV/°C V V V mV mV mV mA Ω dB dB mA mA V/μs MHz Degrees μV p-p nV/√Hz nV/√Hz pA/√Hz IB 0.3 Output Voltage Low VOL Short-Circuit Current Closed-Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density ISC ZOUT PSRR ISY 1.55 2.1 SR GBP ΦO en p-p en in 3.5 4 65 2.5 12 10 0.1 f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz f = 1 kHz 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 INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Current Closed-Loop Output Impedance POWER SUPPLY Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density Symbol VOS IB −40°C < TA < +85°C IOS −40°C < TA < +85°C CMRR AVO TCVOS VOH VOL ISC ZOUT ISY VCM = −0.1 V to +3.0 V −40°C < TA < +85°C RL = 2 kΩ, VO = 0.5 V to 4.5 V −40°C < TA < +85°C I L = 1 mA −40°C < TA < +85°C IL = 1 mA −40°C < TA < +85°C f = 1 MHz, AV = 1 VO = VS/2 −40°C < TA < +85°C RL = 2 kΩ −0.1 85 80 100 100 100 240 4 4.93 50 ±19 65 1.15 1.40 1.8 100 120 0.2 Conditions VCM = VS/2 −40°C < TA < +85°C Min Typ 50 0.3 Max 300 2000 1 50 0.5 20 +3.0 Unit μV μV pA pA pA pA V dB dB V/mV μV/°C V V mV mV mA Ω mA mA V/μs MHz Degrees μV p-p nV/√Hz nV/√Hz pA/√Hz 17 4.85 4.80 SR GBP ΦO en p-p en in 3.5 4 65 2.5 12 10 0.1 f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz f = 1 kHz 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 INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Symbol VOS IB −40°C < TA < +85°C IOS −40°C < TA < +85°C CMRR AVO TCVOS VOH VCM = −0.1 V to +14.0 V −40°C < TA < +85°C RL = 2 kΩ, VO = 0.5 V to 15.5 V −40°C < TA < +85°C I L = 1 mA IL = 10 mA −40°C < TA < +85°C IL = 1 mA IL = 10 mA −40°C < TA < +85°C f = 1 MHz, AV = 1 VS = 5 V to 16 V −40°C < TA < +85°C VO = VS/2 −40°C < TA < +85°C RL = 2 kΩ 95 95 −0.1 90 90 200 110 110 420 4 15.97 15.70 24 210 ±140 45 110 115 1.25 50 350 400 0.2 Conditions VCM = VS/2 −40°C < TA < +85°C Min Typ 50 0.3 Max 300 2000 1 50 0.5 20 +14.0 Unit μV μV pA pA pA pA V dB dB V/mV μV/°C V V V mV mV mV mA Ω dB dB mA mA V/μs MHz Degrees μV p-p nV/√Hz nV/√Hz pA/√Hz 17 15.95 15.60 15.50 Output Voltage Low VOL Short-Circuit Current Closed-Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density ISC ZOUT PSRR ISY 1.55 1.9 SR GBP ΦO en p-p en in 3.5 4 65 2.5 12 10 0.1 f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz f = 1 kHz Rev. D | Page 6 of 16 AD8661/AD8662/AD8664 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Supply Voltage Input Voltage Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range R-8, RM-8, R-14, and RU-14 CP-8-2 Junction Temperature Range Lead Temperature, Soldering (60 sec) Rating 18 V −0.1 V to VS 18 V Indefinite −60°C to +150°C −40°C to +125°C −40°C to +85°C −65°C to +150°C 300°C THERMAL RESISTANCE θJA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. Table 6. Thermal Resistance Package Type 8-Lead SOIC_N 8-Lead LFCSP_VD 8-Lead MSOP 14-Lead SOIC_N 14-Lead TSSOP 1 θJA 121 751 142 88.2 114 θJC 43 18 1 44 56.3 23.3 Unit °C/W °C/W °C/W °C/W °C/W 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 5000 VS = 16V TA = 25°C VCM = –0.1V TO +14V INPUT BIAS CURRENT (pA) 300 VS = 5V AND 16V 250 NUMBER OF AMPLIFIERS 4000 200 3000 150 2000 100 1000 05200-026 50 05200-032 0 –150 –100 –50 0 VOS (µV) 50 100 150 0 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) Figure 7. Input Offset Voltage Distribution 16 OUTPUT SATURATION VOLTAGE (mV) Figure 10. Input Bias Current vs. Temperature 10k 14 NUMBER OF AMPLIFIERS VS = 16V TA = –40°C TO +125°C VCM = 8V VDD = 16V 1k 12 10 8 6 4 05200-017 100 VDD – VOH SOURCING 10 VOL SINKING 1 05200-019 2 0 0 1 2 3 4 5 6 7 8 9 10 0.1 0.001 0.01 0.1 1 10 100 TCVOS (µV/°C) LOAD CURRENT (mA) Figure 8. Offset Voltage Drift Distribution 300 Figure 11. Output Swing Saturation Voltage vs. Load Current 110 200 OUTPUT SATURATION VOLTAGE (mV) VS = 16V TA = 25°C 100 90 80 70 60 50 40 30 20 10 IL = 1mA (VDD – VOH) AT VS = 5V VOL AT VS = 5V 100 VOS (µV) 0 (VDD – VOH) AT VS = 16V –100 –200 05200-023 VOL AT VS = 16V 05200-030 –300 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 0 –40 –20 0 20 40 60 80 100 120 COMMON-MODE VOLTAGE (V) TEMPERATURE (°C) 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 AD8661/AD8662/AD8664 450 IL = 10mA 140 VS = 5V AND 16V 120 100 CMRR (dB) 05200-031 OUTPUT SATURATION VOLTAGE (mV) 400 350 300 250 VOL AT VS = 16V 200 150 (VDD – VOH) AT VS = 16V 80 60 40 100 05200-006 50 0 –40 20 0 100 –20 0 20 40 60 80 100 120 1k 10k 100k 1M 10M TEMPERATURE (°C) FREQUENCY (Hz) Figure 13. Output Swing Saturation Voltage vs. Temperature, IL = 10 mA 80 0 45 90 PHASE 20 GAIN 0 –20 –40 –60 10k 180 225 270 315 135 140 120 100 PSRR (dB) Figure 16. CMRR vs. Frequency OPEN-LOOP GAIN (dB) 40 OPEN-LOOP PHASE SHIFT (Degrees) VS = 5V AND 16V RL = 100kΩ CL = 15pF 60 VS = 5V AND 16V 80 60 40 20 0 1k 05200-003 100k 1M FREQUENCY (Hz) 10M 10k 100k FREQUENCY (Hz) 1M 10M Figure 14. Open-Loop Gain and Phase Shift vs. Frequency 1k VDD = 16V 100 AV = 100 70 60 50 40 30 Figure 17. PSRR vs. Frequency ZOUT (Ω) 10 AV = 10 1 AV = 1 SMALL SIGNAL OVERSHOOT (%) VS = ±2.5 AND ±8V G = +1 RL = 100kΩ OS+ 20 OS– 05200-015 0.1 05200-007 10 0 10 0.01 100 1k 10k 100k 1M 10M 100 LOAD CAPACITANCE (pF) 1k FREQUENCY (Hz) Figure 15. Closed-Loop Output Impedance vs. Frequency Figure 18. Small Signal Overshoot vs. Load Capacitance Rev. D | Page 9 of 16 05200-005 AD8661/AD8662/AD8664 1.8 1.6 1.4 1.2 ISY (mA) 100 80 60 OUTPUT VOLTAGE (mV) VS = 5V AND 16V VIN = 100mV CL = 200pF G = +1 VS = 16V VS = 5V 40 20 0 –20 –40 –60 1.0 0.8 0.6 0.4 05200-029 0.2 0 –40 –80 –100 TIME (0.5µs/DIV) –20 0 20 40 60 80 100 120 TEMPERATURE (°C) Figure 19. Supply Current vs. Temperature 1400 1200 1000 800 600 400 200 0 8 6 4 OUTPUT VOLTAGE (V) Figure 22. Small Signal Transient Response VS = 16V CL = 200pF 2 0 –2 –4 05200-034 ISY (µA) 05200-027 –6 –8 TIME (2µs/DIV) 0 2 4 6 8 10 12 14 16 18 VS (V) Figure 20. Supply Current vs. Supply Voltage (Dual-Supply Configuration), TA = 25°C 2.0 VS = ±2.5V AND ±8V 1.5 PEAK-TO-PEAK NOISE (µV) 100mV VIN Figure 23. Large Signal Transient Response VS = 16V G = –100 1.0 0.5 0 –0.5 –1.0 05200-009 0V 0V –1.5 –2.0 TIME (1s/DIV) –8V TIME (5µs/DIV) Figure 21. 0.1 Hz to 10 Hz Input Voltage Noise Figure 24. Positive Overload Recovery Rev. D | Page 10 of 16 05200-013 VO 05200-010 AD8661/AD8662/AD8664 16 0V VS = 16V G = –100 VIN 14 NUMBER OF AMPLIFIERS VS = 5V TA = –40°C TO +125°C VCM = 2.5V 12 10 8 6 4 05200-022 –100mV 8V VO 05200-014 0V 2 0 TIME (5µs/DIV) 0 1 2 3 4 5 6 7 8 9 10 TCVOS (µV/°C) Figure 25. Negative Overload Recovery 1k VS = ±2.5V AND ±8V VOLTAGE NOISE DENSITY (nV/ Hz) Figure 28. Offset Voltage Drift Distribution 200 150 100 VS = 5V TA = 25°C 100 VOS (µV) 50 0 –50 –100 05200-008 05200-021 10 –150 –200 –0.5 1 1 10 100 FREQUENCY (Hz) 1k 10k 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 COMMON-MODE VOLTAGE (V) Figure 26. Voltage Noise Density vs. Frequency 1800 1600 1400 1200 1000 800 600 400 05200-024 Figure 29. Input Offset Voltage vs. Common-Mode Voltage 10k VDD = 5V OUTPUT SATURATION VOLTAGE (mV) VS = 5V TA = 25°C VCM = –0.1V TO +3V 1k NUMBER OF AMPLIFIERS 100 VDD – VOH SOURCING VOL SINKING 10 1 05200-020 200 0 –150 –100 –50 0 VOS (µV) 50 100 150 0.1 0.001 0.01 0.1 LOAD CURRENT (mA) 1 10 20 Figure 27. Input Offset Voltage Distribution Figure 30. Output Swing Saturation Voltage vs. Load Current Rev. D | Page 11 of 16 AD8661/AD8662/AD8664 1k VDD = 5V VIN VS = 16V G = +1 OUTPUT VOLTAGE (2V/DIV) 100 AV = 100 10 AV = 10 AV = 1 VO ZOUT (Ω) 1 0.1 05200-033 05200-012 0.01 100 1k 10k 100k 1M 10M TIME (0.2µs/DIV) FREQUENCY (Hz) Figure 31. Closed-Loop Output Impedance vs. Frequency 2.5 Figure 33. No Phase Reversal VS = ±2.5V 2.0 CL = 200pF G = +1 1.5 OUTPUT VOLTAGE (V) 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 –2.5 TIME (1µs/DIV) 05200-011 Figure 32. Large Signal Transient Response Rev. D | Page 12 of 16 AD8661/AD8662/AD8664 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890) 4.00 (0.1574) 3.80 (0.1497) 8 1 5 4 6.20 (0.2440) 5.80 (0.2284) 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.10 SEATING PLANE 1.75 (0.0688) 1.35 (0.0532) 0.50 (0.0196) 0.25 (0.0099) 8° 0° 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) 45° 0.51 (0.0201) 0.31 (0.0122) COMPLIANT TO JEDEC STANDARDS MS-012-A A 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) 3.00 BSC SQ 0.60 MAX 0.50 0.40 0.30 PIN 1 INDICATOR 8 1 PIN 1 INDICATOR TOP VIEW 2.75 BSC SQ 0.50 BSC 1.50 REF 5 4 1.89 1.74 1.59 0.90 MAX 0.85 NOM 12° MAX 0.70 MAX 0.65 TYP 0.05 MAX 0.01 NOM 0.30 0.23 0.18 0.20 REF 1.60 1.45 1.30 SEATING PLANE 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 3.20 3.00 2.80 8 5 1 5.15 4.90 4.65 4 PIN 1 0.65 BSC 0.95 0.85 0.75 0.15 0.00 0.38 0.22 SEATING PLANE 1.10 MAX 8° 0° 0.80 0.60 0.40 0.23 0.08 COPLANARITY 0.10 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) 14 1 8 7 4.00 (0.1575) 3.80 (0.1496) 6.20 (0.2441) 5.80 (0.2283) 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0039) COPLANARITY 0.10 0.51 (0.0201) 0.31 (0.0122) 1.75 (0.0689) 1.35 (0.0531) SEATING PLANE 0.50 (0.0197) 0.25 (0.0098) 8° 0° 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) 45° 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 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-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 AD8661ARZ 1 AD8661ARZ-REEL1 AD8661ARZ-REEL71 AD8661ACPZ-R21 AD8661ACPZ-REEL1 AD8661ACPZ-REEL71 AD8662ARZ1 AD8662ARZ-REEL1 AD8662ARZ-REEL71 AD8662ARMZ-R21 AD8662ARMZ-REEL1 AD8664ARZ1 AD8664ARZ-REEL1 AD8664ARZ-REEL71 AD8664ARUZ1 AD8664ARUZ-REEL1 1 Temperature Range −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C Package Description 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead LFCSP_VD 8-Lead LFCSP_VD 8-Lead LFCSP_VD 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead MSOP 8-Lead MSOP 14-Lead SOIC_N 14-Lead SOIC_N 14-Lead SOIC_N 14-Lead TSSOP 14-Lead TSSOP Package Option R-8 R-8 R-8 CP-8-2 CP-8-2 CP-8-2 R-8 R-8 R-8 RM-8 RM-8 R-14 R-14 R-14 RU-14 RU-14 Branding A0M A0M A0M A10 A10 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