Low Power, 3.6 MHz, Low Noise, Rail-toRail Output, Operational Amplifiers ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 1 ADA4692-2 VSY = ±2.5V AV = –1 TA = 25°C APPLICATIONS 0.1 THD + N (%) Photodiode amplifiers Sensor amplifiers Portable medical and instrumentation Portable audio: MP3s, PDAs, and smartphones Communications Low-side current sense ADC drivers Active filters Sample-and-hold RL = 600Ω RL = 2kΩ 0.01 0.001 10 GENERAL DESCRIPTION These amplifiers are ideal for a wide variety of applications. Audio, filters, photodiode amplifiers, and charge amplifiers, all benefit from this combination of performance and features. Additional applications for these amplifiers include portable consumer audio players with low noise and low distortion that provide high gain and slew rate response over the audio band at low power. Industrial applications with high impedance sensors, such as pyroelectric and IR sensors, benefit from the high impedance and low 0.5 pA input bias, low offset drift, and enough bandwidth and response for low gain applications. 100 1k 10k 20k FREQUENCY (Hz) Figure 1. THD + Noise vs. Frequency –80 –90 CHANNEL SEPARATION (dB) The ADA4691-2/ADA4692-2 are dual and the ADA4691-4/ ADA4692-4 are the quad rail-to-rail output, single-supply amplifiers featuring low power, wide bandwidth, and low noise. The ADA4691-2 has two independent shutdown pins, allowing further reduction in supply current. The ADA4691-4 is a quad with dual shutdown pins each controlling a pair of amplifiers and is available in the 16-lead LFCSP. The ADA4692-4 is a quad version without shutdown. 07950-142 Low power: 180 μA typical Very low input bias currents: 0.5 pA typical Low noise: 16 nV/√Hz typical 3.6 MHz bandwidth Offset voltage: 500 μV typical Low offset voltage drift: 4 μV/°C maximum Low distortion: 0.003% THD + N 2.7 V to 5 V single supply or ±1.35 V to ±2.5 V dual supply Available in very small 2 mm × 2 mm LFCSP packages The ADA4691/ADA4692 family is fully specified over the extended industrial temperature range (−40°C to +125°C). The ADA4691-2 is available in a 10-lead LFCSP and a 9-ball WLCSP. The ADA4692-2 is available in an 8-lead SOIC and 8-lead LFCSP. The ADA4691-4 is available in a 16-lead LFCSP. The ADA4692-4 is available in a 14-lead TSSOP. For pin configurations, see the Pin Configurations section. ADA4692-2 VSY = ±2.5V VIN = 2.8V p-p AV = +1 TA = 25°C –100 –110 –120 –130 –140 100 1k 10k 100k FREQUENCY (Hz) 07950-141 FEATURES Figure 2. Channel Separation vs. Frequency Table 1. Single Dual Quad Micropower AD8613 AD8617 AD8619 Low Power Low Power with Shutdown ADA4692-2 ADA4692-4 ADA4691-2 ADA4691-4 Standard Op Amp With Shutdown AD8591 AD8592 AD8594 High Bandwidth AD8691 AD8692 AD8694 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. 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 ©2009–2010 Analog Devices, Inc. All rights reserved. ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 TABLE OF CONTENTS Features .............................................................................................. 1 ESD Caution...................................................................................6 Applications....................................................................................... 1 Pin Configurations ............................................................................7 General Description ......................................................................... 1 Typical Performance Characteristics ..............................................8 Revision History ............................................................................... 2 Shutdown Operation...................................................................... 16 Specifications..................................................................................... 3 Input Pin Characteristics........................................................... 16 Electrical Characteristics—2.7 V Operation ............................ 3 Input Threshold.......................................................................... 16 Electrical Characteristics—5 V Operation................................ 4 Outline Dimensions ....................................................................... 17 Absolute Maximum Ratings............................................................ 6 Ordering Guide .......................................................................... 20 Thermal Resistance ...................................................................... 6 REVISION HISTORY 11/10—Rev. C to Rev. D Changed 5 V to 6 V in Endnote 2, Table 4 .................................... 6 12/09—Rev. B to Rev. C Added ADA4691-4, 16-Lead LFCSP .......................... Throughout Added Figure 1, Figure 2, and Table 1; Renumbered Sequentially ....................................................................................... 1 Changes to Applications Section and General Description Section................................................................................................ 1 Changes to Table 1............................................................................ 3 Changes to Table 2............................................................................ 4 Changes to Table 4............................................................................ 6 Updated Outline Dimensions ....................................................... 17 Changes to Ordering Guide .......................................................... 20 6/09—Rev. 0 to Rev. A Added ADA4691-2, 10 Lead LFCSP........................... Throughout Changes to Table 1.............................................................................3 Changes to Table 2.............................................................................4 Changes to Captions for Figure 40, Figure 41, Figure 43, and Figure 44 .......................................................................................... 13 Added Shutdown Operations Section ......................................... 15 Updated Outline Dimensions....................................................... 16 Changes to Ordering Guide .......................................................... 16 3/09—Revision 0: Initial Version 9/09—Rev. A to Rev. B Added ADA4691-2, 9-Ball WLCSP; ADA4692-2, 8-Lead LFCSP; and ADA4692-4, 14-Lead TSSOP................. Throughout Changes to General Description .................................................... 1 Updated Outline Dimensions ....................................................... 16 Changes to Ordering Guide .......................................................... 17 Rev. D | Page 2 of 20 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 SPECIFICATIONS ELECTRICAL CHARACTERISTICS—2.7 V OPERATION VSY = 2.7 V, VCM = VSY/2, TA = 25°C, unless otherwise specified. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Dual (ADA469x-2) Quad (ADA469x-4) Offset Voltage Drift Input Bias Current Symbol Test Conditions/Comments VOS VCM = −0.3 V to +1.6 V VCM = −0.1 V to +1.6 V; −40°C < TA < +125°C VCM = −0.1 V to +1.6 V; −40°C < TA < +125°C −40°C < TA < +125°C ΔVOS/ΔT Min Typ Max Unit 0.5 2.5 3.5 4.0 4 mV mV mV μV/°C 5 360 8 225 +1.6 pA pA pA pA V dB dB dB dB dB dB 1 IB 0.5 −40°C < TA < +125°C Input Offset Current IOS Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO Input Capacitance Differential Mode Common Mode Logic High Voltage (Enabled) Logic Low Voltage (Power-Down) Logic Input Current (Per Pin) OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Current Closed-Loop Output Impedance Output Pin Leakage Current POWER SUPPLY Power Supply Rejection Ratio CIN CINDM CINCM VIH VIL IIN VOH VOL ISC ZOUT PSRR Supply Current Per Amplifier ISY Supply Current Shutdown Mode ISD 1 −40°C < TA < +125°C −40°C < TA < +125°C VCM = −0.3 V to +1.6 V VCM = −0.1 V to +1.6 V; −40°C < TA < +125°C RL = 2 kΩ, VOUT = 0.5 V to 2.2 V −40°C < TA < +85°C −40°C < TA < +125°C RL = 600 Ω, VOUT = 0.5 V to 2.2 V −0.3 70 62 90 80 63 85 90 100 95 2.5 7 −40°C < TA < +125°C −40°C < TA < +125°C −40°C < TA < +125°C, 0 V ≤ VSD ≤ 2.7 V 1.6 RL = 2 kΩ to GND −40°C < TA < +125°C RL = 600 Ω to GND −40°C < TA < +125°C RL = 2 kΩ to VSY −40°C < TA < +125°C RL = 600 Ω to VSY −40°C < TA < +125°C VOUT = VSY or GND f = 1 MHz, AV = −100 −40°C < TA < +125°C, shutdown active, VSD = VSS 2.65 2.6 2.55 2.5 VS = 2.7 V to 5.5 V −40°C < TA < +125°C VOUT = VSY/2 −40°C < TA < +125°C All amplifiers shut down, VSD = VSS −40°C < TA < +125°C 80 75 Rev. D | Page 3 of 20 0.5 1 2.67 2.59 24 78 30 40 95 130 ±15 372 10 90 165 200 240 10 2 pF pF V V μA V V V V mV mV mV mV mA Ω nA dB dB μA μA nA μA ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 Parameter DYNAMIC PERFORMANCE Slew Rate Symbol Test Conditions/Comments SR Settling Time to 0.1% Gain Bandwidth Product Phase Margin Turn-On/Turn-Off Time NOISE PERFORMANCE Distortion tS GBP ΦM RL = 600 Ω, CL = 20 pF, AV = +1 RL = 2 kΩ, CL = 20 pF, AV = +1 Step = 0.5 V, RL = 2 kΩ, 600 Ω RL = 1 MΩ, CL = 35 pF, AV = +1 RL = 1 MΩ, CL = 35 pF, AV = +1 RL = 600 Ω 1.1 1.4 1 3.6 49 1 V/μs V/μs μs MHz Degrees μs AV = −1, RL = 2 kΩ, f = 1 kHz, VIN rms = 0.15 V rms 0.009 % AV = −1, RL = 600 Ω, f = 1 kHz, VIN rms = 0.15 V rms AV = +1, RL = 2 kΩ, f = 1 kHz, VIN rms = 0.15 V rms AV = +1, RL = 600 Ω, f = 1 kHz, VIN rms = 0.15 V rms f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz 0.01 0.006 0.009 3.1 16 13 % % % μV p-p nV/√Hz nV/√Hz Voltage Noise Voltage Noise Density THD + N en p-p en Min Typ Max Unit ELECTRICAL CHARACTERISTICS—5 V OPERATION VSY = 5 V, VCM = VSY/2, TA = 25°C, unless otherwise specified. Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Dual (ADA469x-2) Quad (ADA469x-4) Offset Voltage Drift Input Bias Current Symbol Test Conditions/Comments VOS VCM = −0.3 V to +3.9 V VCM = −0.1 V to +3.9 V; −40°C < TA < +125°C VCM = −0.1 V to +3.9 V; −40°C < TA < +125°C −40°C < TA < +125°C ΔVOS/ΔT Min Typ Max Unit 0.5 2.5 3.5 4.0 4 mV mV mV μV/°C 5 360 8 260 +3.9 pA pA pA pA V dB dB dB dB dB dB 1 IB 0.5 −40°C < TA < +125°C Input Offset Current IOS Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO Input Capacitance Differential Mode Common Mode Logic High Voltage (Enabled) Logic Low Voltage (Power-Down) Logic Input Current (Per Pin) CINDM CINCM VIH VIL IIN 1 −40°C < TA < +125°C −40°C < TA < +125°C VCM = −0.3 V to +3.9 V VCM = −0.1 V to +3.9 V; −40°C < TA < +125°C RL = 2 kΩ, VO = 0.5 V to 4.5 V, VCM = 0 V −40°C < TA < +85°C −40°C < TA < +125°C RL = 600 Ω, VO = 0.5 V to 4.5 V, VCM = 0 V −0.3 75 68 95 80 70 90 98 110 100 2.5 7 −40°C < TA < +125°C −40°C < TA < +125°C −40°C < TA < +125°C, 0 V ≤ VSD ≤ 2.7 V Rev. D | Page 4 of 20 2.0 0.8 1 pF pF V V μA ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 Parameter OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Limit Closed-Loop Output Impedance Output Pin Leakage Current POWER SUPPLY Power Supply Rejection Ratio Symbol Test Conditions/Comments Min Typ VOH RL = 2 kΩ −40°C ≤ TA ≤ +125°C RL = 600 Ω to GND −40°C ≤ TA ≤ +125°C RL = 2 kΩ −40°C ≤ TA ≤ +125°C RL = 600 Ω −40°C ≤ TA ≤ +125°C VOUT = VSY or GND ADA4691-2, f = 1 MHz, AV = −100 ADA4691-2, f = 1 MHz, AV = −100 −40°C < TA < +125°C, shutdown active, VSD = VSS 4.95 4.90 4.85 4.80 4.97 VSY = 2.7 V to 5.5 V −40°C ≤ TA ≤ +125°C VOUT = VSY/2 −40°C ≤ TA ≤ +125°C All amplifiers shut down, VSD = VSS −40°C ≤ TA ≤ +125°C 80 75 VOL ISC ZOUT PSRR Supply Current Per Amplifier ISY Supply Current Shutdown Mode ISD DYNAMIC PERFORMANCE Slew Rate Settling Time to 0.1% Gain Bandwidth Product Phase Margin Turn-On/Turn-Off Time NOISE PERFORMANCE Distortion Voltage Noise Voltage Noise Density Max Unit 35 50 110 155 V V V V mV mV mV mV mA Ω Ω nA 225 275 dB dB μA μA nA μA 4.88 30 100 ±55 364 246 10 90 180 10 2 SR tS GBP ΦM RL = 2 kΩ, 600 Ω, CL = 20 pF, AV = +1 VIN = 2 V step, RL = 2 kΩ or 600 Ω RL = 1 MΩ, CL = 35 pF, AV = +1 RL = 1 MΩ, CL = 35 pF, AV = +1 RL = 600 Ω 1.3 1.5 3.6 52 1 V/μs μs MHz Degrees μs THD + N AV = −1, RL = 2 kΩ, f = 1 kHz, VIN rms = 0.8 V rms 0.006 % en p-p en en AV = −1, RL = 600 Ω, f = 1 kHz, VIN rms = 0.8 V rms AV = +1, RL = 2 kΩ, f = 1 kHz, VIN rms = 0.8 V rms AV = +1, RL = 600 Ω, f = 1 kHz, VIN rms = 0.8 V rms f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz 0.008 0.001 0.003 3.2 16 13 % % % μV p-p nV/√Hz nV/√Hz Rev. D | Page 5 of 20 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 4. Parameter Supply Voltage Input Voltage Input Current1 Shutdown Pin Rise/Fall Times Differential Input Voltage2 Output Short-Circuit Duration to GND Temperature Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) Rating 6V VSS − 0.3 V to VDD + 0.3 V ±10 mA 50 μs maximum ±VSY Indefinite −65°C to +150°C −40°C to +125°C −65°C to +150°C 300°C θJA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages and measured using a standard 4-layer board, unless otherwise specified. Table 5. Thermal Resistance Package Type 8-Lead SOIC_N (R-8) 8-Lead LFCSP (CP-8-6) 9-Ball WLCSP (CB-9-3) 10-Lead LFCSP (CP-10-11) 16-Lead LFCSP (CP-16-22) 14-Lead TSSOP (RU-14) 1 Input pins have clamp diodes to the supply pins. Limit the input current to 10 mA or less whenever the input signal exceeds the power supply rail by 0.3 V. 2 Differential input voltage is limited to 6 V or the supply voltage, whichever is less. 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. 1 N/A = not applicable. ESD CAUTION Rev. D | Page 6 of 20 θJA 120 125 77 115 75 112 θJC 45 40 N/A1 40 12 35 Unit °C/W °C/W °C/W °C/W °C/W °C/W ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 PIN CONFIGURATIONS OUT A 1 8 V+ OUT B V+ OUT A –IN A 2 ADA4692-2 7 OUT B A1 A2 A3 +IN A 3 TOP VIEW (Not to Scale) 6 –IN B –IN B SD A/B –IN A B1 B2 B3 +IN B V– +IN A C1 C2 C3 5 +IN B V– 4 OUT A 1 07950-058 ADA4692-2 +IN 3 TOP VIEW (Not to Scale) V– 4 Figure 3. 9-Ball Wafer Level Chip Scale WLCSP (CB-9-3) OUT A 1 8 OUT B V+ 4 +IN B 3 12 +IN D 11 V– 9 –IN C OUT B 7 8 OUT C 07950-002 Figure 8. 14-Lead TSSOP (RU-14) 11 V– 10 +IN C –IN C OUT C 8 SD C/D 7 OUT B 5 SD A/B 6 TOP VIEW (Not to Scale) 10 +IN C 9 –IN B 4 ADA4692-4 –IN B 6 12 +IN D ADA4691-4 13 –IN D 6 +IN B 13 –IN D 14 OUT D 15 OUT A 16 –IN A V+ 2 +IN B +IN B 5 Figure 4. 10-Lead, 2 mm × 2 mm LFCSP (CP-10-11) +IN A 1 –IN B 5 7 –IN B SD B 5 SD A 4 V– 3 TOP VIEW (Not to Scale) OUT B 6 NOTES 1. IT IS RECOMMENDED THAT THE EXPOSED PAD BE CONNCECTED TO V–. 07950-060 TOP VIEW (Not to Scale) Figure 5. 16-Lead, 3 mm × 3 mm LFCSP (CP-16-22) Rev. D | Page 7 of 20 07950-059 ADA4691-2 +IN A 2 V+ 7 14 OUT D –IN A 2 +IN A 3 –IN A 1 8 Figure 7. 8-Lead SOIC_N (R-8) 9 V+ 10 OUT A –IN 2 07950-001 Figure 6. 8-Lead, 2 mm × 2 mm LFCSP (CP-8-6) ADA4691-2 TOP VIEW (BALL SIDE DOWN) Not to Scale 07950-016 BALL A1 CORNER ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 TYPICAL PERFORMANCE CHARACTERISTICS 350 700 ADA4692-2 VSY = 2.7V T 300 A = 25°C –0.3V ≤ VCM ≤ +1.6V SIGNIFIES CENTER OF BIN 250 ADA4692-2 VSY = 5V 600 TA = 25°C –0.3V ≤ VCM ≤ +3.9V SIGNIFIES CENTER OF BIN 500 NUMBER OF AMPLIFIERS 200 150 100 400 300 200 0 0.4 0.8 1.2 1.6 2.0 VOS (mV) 0 –2.0 –1.6 –1.2 –0.8 –0.4 07950-003 0 –2.0 –1.6 –1.2 –0.8 –0.4 Figure 9. Input Offset Voltage Distribution 0.8 1.2 1.6 2.0 30 ADA4692-2 VSY = ±1.35V –40°C < TA < +125°C SIGNIFIES CENTER OF BIN ADA4692-2 VSY = ±2.5V –40°C < TA < +125°C SIGNIFIES CENTER OF BIN 25 NUMBER OF AMPLIFIERS 25 20 15 10 5 20 15 10 5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 TCVOS (µV/°C) 0 07950-004 0 0 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.2 2.4 4.5 5.0 2.0 Figure 13. Input Offset Voltage Drift Distribution 2.0 2.0 ADA4692-2 VSY = 2.7V TA = 25°C 0.5 0.5 VOS (mV) 1.0 0 0 –0.5 –1.0 –1.0 –1.5 –1.5 0.5 1.0 1.5 2.0 2.5 VCM (V) 07950-005 –0.5 0 ADA4692-2 VSY = 5V TA = 25°C 1.5 1.0 –2.0 –0.5 0.4 TCVOS (µV/°C) Figure 10. Input Offset Voltage Drift Distribution 1.5 0.2 07950-007 NUMBER OF AMPLIFIERS 0.4 Figure 12. Input Offset Voltage Distribution 30 VOS (mV) 0 VOS (mV) 07950-006 100 50 07950-008 NUMBER OF AMPLIFIERS TA = 25°C, unless otherwise noted. Figure 11. Input Offset Voltage vs. Common-Mode Voltage –2.0 –0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VCM (V) Figure 14. Input Offset Voltage vs. Common-Mode Voltage Rev. D | Page 8 of 20 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 1k 1k ADA4692-2 VSY = ±1.35V TA = 25°C AVERAGE 20 CHANNELS 100 ADA4692-2 VSY = ±2.5V TA = 25°C AVERAGE 20 CHANNELS 100 10 0.1 0.1 35 45 55 65 75 85 95 105 115 125 TEMPERATURE (°C) 0.01 25 07950-009 0.01 25 35 45 55 65 75 85 95 105 115 125 4.5 5.0 100 TEMPERATURE (°C) Figure 15. Input Bias Current vs. Temperature 07950-012 1 07950-013 1 07950-014 IB (pA) IB (pA) 10 Figure 18. Input Bias Current vs. Temperature 1k 1k TA = 125°C TA = 125°C 100 100 TA = 85°C IB (pA) 10 1 ADA4692-2 VSY = 2.7V AVERAGE 20 CHANNELS 0.001 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 VCM (V) 0.01 0 OUTPUT SATURATION VOLTAGE (mV) 100 TA = +85°C TA = +25°C TA = –40°C 1 0.1 0.01 0.001 0.01 0.1 1 10 100 ILOAD (mA) 07950-011 OUTPUT SATURATION VOLTAGE (mV) TA = +125°C 10 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Figure 19. Input Bias Current vs. Common-Mode Voltage 10k ADA4692-2 VSY = ±1.35V VOH = (V+) – VOUT (SOURCING) 0.5 VCM (V) Figure 16. Input Bias Current vs. Common-Mode Voltage 1k TA = 25°C 0.1 0.01 10k TA = 85°C 1 TA = 25°C 0.1 07950-010 IB (pA) 10 ADA4692-2 VSY = 5V AVERAGE 20 CHANNELS Figure 17. Output Voltage (VOH) to Supply Rail vs. Load Current 1k ADA4692-2 VSY = ±2.5V VOH = (V+) – VOUT (SOURCING) TA = +125°C 100 TA = +85°C 10 TA = +25°C 1 TA = –40°C 0.1 0.01 0.001 0.01 0.1 1 10 ILOAD (mA) Figure 20. Output Voltage (VOH) to Supply Rail vs. Load Current Rev. D | Page 9 of 20 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 10k 100 TA = +85°C 10 TA = +25°C 1 TA = –40°C 0.1 0.01 0.1 1 10 100 ILOAD (mA) 100 TA = +85°C 10 TA = +25°C 1 TA = –40°C 0.1 0.01 0.1 1 10 100 ILOAD (mA) Figure 21. Output Voltage (VOL) to Supply Rail vs. Load Current Figure 24. Output Voltage (VOL) to Supply Rail vs. Load Current 120 120 120 100 100 100 100 80 80 80 80 60 60 40 40 20 20 0 0 –60 1k 10k 100k 40 40 20 20 0 0 –20 –20 –40 –40 –60 10M 1M FREQUENCY (Hz) –60 1k –40 10k 100k –60 10M 1M FREQUENCY (Hz) Figure 25. Open-Loop Gain and Phase vs. Frequency 50 50 AV = +100 AV = +100 40 40 30 30 AV = +10 AV = +10 20 GAIN (dB) 20 10 AV = +1 0 10 AV = +1 0 –10 –10 ADA4692-2 VSY = ±1.35V TA = 25°C RL = 600Ω –30 10 100 –20 1k 10k 100k 1M FREQUENCY (Hz) 10M 07950-022 GAIN (dB) –20 CL = 200pF ADA4692-2 VSY = ±2.5V TA = 25°C AV = –1 Figure 22. Open-Loop Gain and Phase vs. Frequency –20 60 CL = 20pF Figure 23. Closed-Loop Gain vs. Frequency ADA4692-2 VSY = ±2.5V TA = 25°C RL = 600Ω –30 10 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 26. Closed-Loop Gain vs. Frequency Rev. D | Page 10 of 20 10M 07950-025 –40 CL = 200pF ADA4692-2 VSY = ±1.35V TA = 25°C AV = –1 07950-021 –20 GAIN (dB) CL = 20pF PHASE (Degrees) 120 60 GAIN (dB) TA = +125°C 0.01 0.001 07950-015 0.01 0.001 1k 07950-018 TA = +125°C PHASE (Degrees) 1k ADA4692-2 VSY = ±2.5V VOL = VOUT – (V–) (SINKING) 07950-024 ADA4692-2 VSY = ±1.35V VOL = VOUT – (V–) (SINKING) OUTPUT SATURATION VOLTAGE (mV) OUTPUT SATURATION VOLTAGE (mV) 10k ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 1k 1k 100 100 AV = –100 1 ZOUT (Ω) ZOUT (Ω) AV = –100 10 AV = –10 10 AV = –10 1 AV = –1 AV = –1 0.1 ADA4692-2 VSY = ±1.35V TA = 25°C 1k 10k 100k 1M 10M FREQUENCY (Hz) 0.01 100 07950-023 0.01 100 120 120 100 100 80 80 60 1M 10M 60 40 20 ADA4692-2 VSY = ±1.35V TA = 25°C 1k 10k 100k 1M 10M FREQUENCY (Hz) ADA4692-2 VSY = ±2.5V TA = 25°C 0 100 07950-027 0 100 1k 10k 100k 1M 10M 1M 10M FREQUENCY (Hz) Figure 28. CMRR vs. Frequency Figure 31. CMRR vs. Frequency 100 100 PSRR+ PSRR– 80 80 PSRR– PSRR+ 60 PSRR (dB) 60 40 40 20 0 ADA4692-2 VSY = ±1.35V TA = 25°C –20 100 1k 10k 100k FREQUENCY (Hz) 1M 10M Figure 29. PSRR vs. Frequency ADA4692-2 VSY = ±2.5V TA = 25°C –20 100 1k 10k 100k FREQUENCY (Hz) Figure 32. PSRR vs. Frequency Rev. D | Page 11 of 20 07950-031 20 07950-028 PSRR (dB) 100k 07950-030 40 0 10k Figure 30. Output Impedance vs. Frequency CMRR (dB) CMRR (dB) 1k FREQUENCY (Hz) Figure 27. Output Impedance vs. Frequency 20 ADA4692-2 VSY = ±2.5V TA = 25°C 07950-026 0.1 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 100 ADA4692-2 VSY = ±1.35V TA = 25°C 10 0.1 1 10 100 1k 100 ADA4692-2 VSY = ±2.5V TA = 25°C 10k 10 0.1 FREQUENCY (Hz) 35 1k 10k ADA4692-2 VSY = ±2.5V VIN = 100mV p-p AV = +1 RL = 2kΩ TA = 25°C 40 35 30 OVERSHOOT+ 25 OVERSHOOT– 20 15 30 OVERSHOOT+ 25 20 OVERSHOOT– 15 10 10 1k CAPACITANCE (pF) 0 10 07950-034 TIME (2µs/DIV) 1k Figure 37. Small Signal Overshoot vs. Load Capacitance OUTPUT (500mV/DIV) Figure 34. Small Signal Overshoot vs. Load Capacitance ADA4692-2 VSY = ±1.35V GAIN = +1 RL = 2kΩ CL = 300pF TA = 25°C 100 CAPACITANCE (pF) ADA4692-2 VSY = ±2.5V GAIN = +1 RL = 2kΩ, CL = 300pF TA = 25°C TIME (2µs/DIV) Figure 35. Large Signal Transient Response Figure 38. Large Signal Transient Response Rev. D | Page 12 of 20 07950-037 100 07950-033 0 10 07950-036 5 5 OUTPUT (500mV/DIV) OVERSHOOT (%) 45 OVERSHOOT (%) 40 100 Figure 36. Voltage Noise Density vs. Frequency ADA4692-2 VSY = ±1.35V VIN = 100mV p-p AV = +1 RL = 2kΩ TA = 25°C 45 10 FREQUENCY (Hz) Figure 33. Voltage Noise Density vs. Frequency 50 1 07950-032 VOLTAGE NOISE DENSITY (nV/ Hz) 1k 07950-029 VOLTAGE NOISE DENSITY (nV/ Hz) 1k ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 OUTPUT (20mV/DIV) ADA4692-2 VSY = ±2.5V GAIN = +1 RL = 2kΩ CL = 200pF TA = 25°C 07950-035 ADA4692-2 VSY = ±1.35V GAIN = +1 RL = 2kΩ CL = 200pF TA = 25°C TIME (2µs/DIV) 07950-038 OUTPUT (20mV/DIV) T TIME (2µs/DIV) Figure 42. Small Signal Transient Response OUTPUT (1µV/DIV) OUTPUT (1µV/DIV) Figure 39. Small Signal Transient Response TIME (1s/DIV) 07950-043 ADA4692-2 VSY = ±2.5V GAIN = +1M TA = 25°C 07950-040 ADA4692-2 VSY = ±1.35V GAIN = +1M TA = 25°C TIME (1s/DIV) Figure 43. 0.1 Hz to 10 Hz Noise Figure 40. 0.1 Hz to 10 Hz Noise 250 250 ADA4692-2 ADA4692-2 TA = +125°C TA = +85°C 225 ISY/AMPLIFIER (µA) TA = +25°C 150 TA = –40°C 100 200 VSY = ±2.5V 175 VSY = ±1.35V 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VSY (V) 5.0 125 –40 –25 –10 5 20 35 50 65 80 95 110 TEMPERATURE (°C) Figure 44. Supply Current per Channel vs. Temperature Figure 41. Supply Current per Amplifier vs. Supply Voltage Rev. D | Page 13 of 20 125 07950-138 150 50 07950-135 ISY/CHANNEL (µA) 200 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 1 1 ADA4692-2 VSY = ±1.35V AV = –1 TA = 25°C ADA4692-2 VSY = ±2.5V AV = –1 TA = 25°C THD + N (%) 0.1 THD + N (%) 0.1 RL = 600Ω RL = 2kΩ RL = 2kΩ 100 1k 10k 20k FREQUENCY (Hz) Figure 45. THD + Noise vs. Frequency 0.001 10 100 1k 10k 20k FREQUENCY (Hz) Figure 48. THD + Noise vs. Frequency 50mV/DIV 50mV/DIV 1V/DIV ADA4692-2 VSY = ±2.5V AV = –100 TA = 25°C 07950-050 ADA4692-2 VSY = ±1.35V TA = 25°C TIME (4µs/DIV) 1V/DIV 07950-051 0.001 10 TIME (4µs/DIV) Figure 46. Positive Overload Recovery Figure 49. Positive Overload Recovery 50mV/DIV 50mV/DIV 1V/DIV TIME (4µs/DIV) ADA4692-2 VSY = ±2.5V AV = –100 TA = 25°C 07950-052 ADA4692-2 VSY = ±1.35V TA = 25°C TIME (4µs/DIV) Figure 47. Negative Overload Recovery Figure 50. Negative Overload Recovery Rev. D | Page 14 of 20 07950-053 1V/DIV 07950-045 0.01 07950-042 0.01 RL = 600Ω ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 1V/DIV 200mV/DIV TIME (1µs/DIV) 07950-054 ADA4692-2 VSY = ±1.35V RL = 2kΩ TA = 25°C ERROR BAND ERROR BAND TIME (1µs/DIV) Figure 51. Positive Settling Time to 0.1% Figure 54. Positive Settling Time to 0.1% 200mV/DIV 1V/DIV ERROR BAND ERROR BAND TIME (1µs/DIV) ADA4692-2 VSY = ±2.5V RL = 2kΩ TA = 25°C 07950-056 ADA4692-2 VSY = ±1.35V RL = 2kΩ TA = 25°C TIME (1µs/DIV) Figure 52. Negative Settling Time to 0.1% –80 CS (dB) = 20 log (VOUT/100 = VIN) V+ –100 VIN + 2 V– U1 V+ V– R3 600Ω – 0 R1 100kΩ V– 0 U2 5 V– V+ R2 1kΩ 6 7 0 0 V+ –110 –120 ADA4692-2 VSY = ±2.5V VIN = 2.8V p-p AV = +1 TA = 25°C –130 –140 100 1k 10k FREQUENCY (Hz) 100k 07950-140 CHANNEL SEPARATION (dB) 3 Figure 55. Negative Settling Time to 0.1% Figure 53. Channel Separation (CS) vs. Frequency Rev. D | Page 15 of 20 07950-057 20mV/DIV 10mV/DIV –90 ADA4692-2 VSY = ±2.5V RL = 2kΩ TA = 25°C 07950-055 20mV/DIV 10mV/DIV ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 SHUTDOWN OPERATION INPUT PIN CHARACTERISTICS The ADA4691-2 has a classic CMOS logic inverter input for each shutdown pin, as shown in Figure 56. SD A, SD B VDD P-CHANNEL N-CHANNEL 07950-149 OUTPUT INPUT ISY = 724mV/1k = 724µA Figure 56. CMOS Inverter DUT OUTPUT 07950-152 With slowly changing inputs, the top transistor and bottom transistor may be slightly on at the same time, increasing the supply current. This can be avoided by driving the input with a digital logic output having fast rise and fall times. Figure 57 through Figure 59 show the supply current for both sections switching simultaneously with rise times of 1 μs, 10 μs, and 1 ms. Clearly, the rise and fall times should be faster than 10 μs. Using an RC time constant to enable/disable shutdown is not recommended. TIME (400µs/DIV) Figure 59. Shutdown Pin Rise Time = 1 ms INPUT THRESHOLD The input threshold is approximately 1.2 V above the V− pin when operating on ground and 5 V and 0.9 V when operating on 2.7 V (see Figure 60 and Figure 61). The threshold is relatively stable over temperature. For operation on split supplies, the logic swing may have to be level shifted. 500 ADA4691-2 450 TA = 25°C VSY = 5V 400 ISY = 196mV/1k = 196µA 350 TA = +125°C ISY (µA) 300 SD A, SD B TA = +85°C 250 200 150 DUT OUTPUT 07950-150 50 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 07950-155 0 Figure 57. Shutdown Pin Rise Time = 1 μs 2.7 07950-156 TIME (400µs/DIV) TA = +25°C TA = –40°C 100 SD VOLTAGE (V) Figure 60. Supply Current vs. Temperature, VSY = 5 V 300 ADA4691-2 VSY = 2.7V ISY = 192mV/1k = 196µA 250 ISY (µA) 200 SD A, SD B DUT OUTPUT TA = +125°C TA = +85°C 150 TIME (400µs/DIV) 07950-151 100 TA = +25°C TA = –40°C 50 Figure 58. Shutdown Pin Rise Time = 10 μs 0 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 SD VOLTAGE (V) Figure 61. Supply Current vs. Temperature, VSY = 2.7 V Rev. D | Page 16 of 20 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 OUTLINE DIMENSIONS 3.10 3.00 SQ 2.90 PIN 1 INDICATOR 0.30 0.23 0.18 0.50 BSC 13 PIN 1 INDICATOR 16 1 12 EXPOSED PAD 1.75 1.60 SQ 1.45 9 TOP VIEW 0.80 0.75 0.70 4 5 8 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.20 REF SEATING PLANE 0.25 MIN BOTTOM VIEW FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. 08-16-2010-E 0.50 0.40 0.30 COMPLIANT TO JEDEC STANDARDS MO-220-WEED-6. Figure 62. 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ] 3 mm × 3 mm Body, Very Very Thin Quad (CP-16-22) Dimensions shown in millimeters 1.250 1.210 1.170 0.415 0.400 0.385 0.645 0.600 0.555 SEATING PLANE 3 2 1 A BALL A1 IDENTIFIER 0.287 0.267 0.247 1.260 1.220 1.180 B 0.40 BSC C 0.230 0.200 0.170 0.05 NOM COPLANARITY Figure 63. 9-Ball Wafer Level Chip Scale Package [WLCSP] (CB-9-3) Dimensions shown in millimeters Rev. D | Page 17 of 20 BOTTOM VIEW (BALL SIDE UP) 091709-A TOP VIEW (BALL SIDE DOWN) ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 PIN 1 INDEX AREA 0.50 0.45 0.40 2.00 BSC SQ PIN 1 INDICATOR 9 10 8 0.30 0.25 0.18 1 6 3 5 TOP VIEW 0.60 0.55 0.50 BOTTOM VIEW 0.05 MAX 0.02 NOM COPLANARITY 0.05 0.50 BSC 0.20 REF 081308-D SEATING PLANE 4 Figure 64. 10-Lead Lead Frame Chip Scale Package [LFCSP_UQ] 2 mm × 2 mm Body, Ultra Thin Quad (CP-10-11) Dimensions shown in millimeters 0.30 0.25 0.18 2.00 BSC SQ 0.65 0.60 0.55 PIN 1 INDEX AREA 0.50 BSC 5 8 4 1 TOP VIEW SEATING PLANE PIN 1 INDICATOR 0.05 MAX 0.02 NOM 0.20 REF Figure 65. 8-Lead Lead Frame Chip Scale Package [LFCSP_UD] 2 mm × 2 mm Body, Ultra Thin, Dual Lead (CP-8-6) Dimensions shown in millimeters Rev. D | Page 18 of 20 062409-A 0.60 0.55 0.50 BOTTOM VIEW ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 5.00 (0.1968) 4.80 (0.1890) 5 1 4 6.20 (0.2441) 5.80 (0.2284) 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 (0.0040) 0.51 (0.0201) 0.31 (0.0122) COPLANARITY 0.10 SEATING PLANE 0.50 (0.0196) 0.25 (0.0099) 45° 8° 0° 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) 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. 012407-A 8 4.00 (0.1574) 3.80 (0.1497) Figure 66. 8-Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-8) Dimensions shown in millimeters and (inches) 5.10 5.00 4.90 14 8 4.50 4.40 4.30 6.40 BSC 1 7 PIN 1 0.65 BSC 1.20 MAX 0.15 0.05 COPLANARITY 0.10 0.30 0.19 0.20 0.09 SEATING PLANE 8° 0° COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 Figure 67. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters Rev. D | Page 19 of 20 0.75 0.60 0.45 061908-A 1.05 1.00 0.80 ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4 ORDERING GUIDE Model1 ADA4691-2ACBZ-R7 ADA4691-2ACBZ-RL ADA4691-2ACPZ-R7 ADA4691-2ACPZ-RL ADA4691-4ACPZ-R2 ADA4691-4ACPZ-R7 ADA4691-4ACPZ-RL ADA4692-2ACPZ-R7 ADA4692-2ACPZ-RL ADA4692-2ARZ ADA4692-2ARZ-R7 ADA4692-2ARZ-RL ADA4692-4ARUZ ADA4692-4ARUZ-RL 1 Temperature Range −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 −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C Package Description 9-Ball WLCSP 9-Ball WLCSP 10-Lead LFCSP_UQ 10-Lead LFCSP_UQ 16-Lead LFCSP_WQ 16-Lead LFCSP_WQ 16-Lead LFCSP_WQ 8-Lead LFCSP_UD 8-Lead LFCSP_UD 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 14-Lead TSSOP 14-Lead TSSOP Z = RoHS Compliant Part. ©2009–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07950-0-11/10(D) Rev. D | Page 20 of 20 Package Option CB-9-3 CB-9-3 CP-10-11 CP-10-11 CP-16-22 CP-16-22 CP-16-22 CP-8-6 CP-8-6 R-8 R-8 R-8 RU-14 RU-14 Branding A2C A2C A2 A2 A2P A2P A2P A3 A3