PDF AD8659 Data sheet ( Hoja de datos )

Número de pieza	AD8659
Descripción	(AD8657 / AD8659) Operational Amplifiers
Fabricantes	Analog Devices
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No Preview Available ! Data Sheet FEATURES Micropower at high voltage (18 V): 22 μA maximum Low offset voltage: 350 µV maximum Low input bias current: 20 pA maximum Gain bandwidth product: 230 kHz at AV = 100 typical Unity-gain crossover: 230 kHz −3 dB closed-loop bandwidth: 305 kHz Single-supply operation: 2.7 V to 18 V Dual-supply operation: ±1.35 V to ±9 V Unity-gain stable Excellent electromagnetic interference immunity APPLICATIONS Portable operating systems Current monitors 4 mA to 20 mA loop drivers Buffer/level shifting Multipole filters Remote/wireless sensors Low power transimpedance amplifiers GENERAL DESCRIPTION The AD8657/AD8659 are dual and quad micropower, precision, rail-to-rail input/output amplifiers optimized for low power and wide operating supply voltage range applications. The AD8657/AD8659 operate from 2.7 V to 18 V with a typical quiescent supply current of 18 μA. The devices use the Analog Devices, Inc., patented DigiTrim® trimming technique, which achieves low offset voltage. The AD8657/AD8659 also have high immunity to electromagnetic interference. The combination of low supply current, low offset voltage, very low input bias current, wide supply range, and rail-to-rail input and output make the AD8657/AD8659 ideal for current monitoring in process and motor control applications. The combination of precision specifications makes these devices ideal for dc gain and buffering of sensor front ends or high impedance input sources in wireless or remote sensors or transmitters. The AD8657/AD8659 are specified over the extended industrial temperature range (−40°C to +125°C). The AD8657 is available in an 8-lead MSOP package and an 8-lead LFCSP package; the AD8659 is available in a 14-lead SOIC package and 16-lead LFCSP package. Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 22 µA, RRIO, CMOS,18 V Operational Amplifiers AD8657/AD8659 PIN CONNECTION DIAGRAMS OUT A 1 –IN A 2 +IN A 3 V– 4 AD8657 TOP VIEW (Not to Scale) 8 V+ 7 OUT B 6 –IN B 5 +IN B Figure 1. AD8657 Pin Configuration, 8-Lead MSOP OUT A 1 –IN A 2 +IN A 3 V– 4 AD8657 TOP VIEW (Not to Scale) 8 V+ 7 OUT B 6 –IN B 5 +IN B NOTES 1. CONNECT THE EXPOSED PAD TO V– OR LEAVE IT UNCONNECTED. Figure 2. AD8657 Pin Configuration, 8-Lead LFCSP Note: For AD8659 pin connections and for more information about the pin connections for these products, see the Pin Configurations and Function Descriptions section. 60 50 VSY = 2.7V VSY = 18V 40 30 20 10 0 –50 –25 0 25 50 75 TEMPERATURE (°C) 100 125 Figure 3. AD8657, Supply Current vs. Temperature Table 1. Precision Micropower Op Amps (<250 µA) Supply Voltage 5 V 12 V to 16 V 36 V Single AD8538 OP196 AD8603 ADA4051-1 Dual AD8539 AD8657 AD8622 AD8607 ADA4091-2 ADA4051-2 ADA4096-2 Quad AD8609 AD8659 AD8624 ADA4091-4 ADA4096-4 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 ©2011–2012 Analog Devices, Inc. All rights reserved. Free Datasheet http://www.datasheet4u.com/ 1 page Data Sheet AD8657/AD8659 ELECTRICAL CHARACTERISTICS—2.7 V OPERATION VSY = 2.7 V, VCM = VSY/2 V, TA = 25°C, unless otherwise specified. Table 4. Parameter Symbol Test Conditions/Comments Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range VOS VCM = 0 V to 2.7 V VCM = 0.3 V to 2.4 V, −40°C ≤ TA ≤ +85°C VCM = 0.3 V to 2.4 V, −40°C ≤ TA ≤ +125°C VCM = 0 V to 2.7 V, −40°C ≤ TA ≤ +125°C IB −40°C ≤ TA ≤ +125°C IOS −40°C ≤ TA ≤ +125°C 350 µV 1.2 mV 2.5 mV 16 mV 1 10 pA 2.6 nA 20 pA 5.2 nA 0 2.7 V Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift Input Resistance Input Capacitance, Differential Mode Input Capacitance, Common Mode OUTPUT CHARACTERISTICS CMRR AVO ΔVOS/ΔT RIN CINDM CINCM VCM = 0 V to 2.7 V VCM = 0.3 V to 2.4 V, −40°C ≤ TA ≤ +85°C VCM = 0.3 V to 2.4 V, −40°C ≤ TA ≤ +125°C VCM = 0 V to 2.7 V, −40°C ≤ TA ≤ +125°C RL = 100 kΩ, VO = 0.5 V to 2.2 V −40°C ≤ TA ≤ +125°C 77 95 69 62 47 95 105 90 2 10 11 3.5 dB dB dB dB dB dB μV/°C GΩ pF pF Output Voltage High VOH RL = 100 kΩ to VCM, −40°C ≤ TA ≤ +125°C Output Voltage Low VOL RL = 100 kΩ to VCM, −40°C ≤ TA ≤ +125°C Short-Circuit Current ISC Closed-Loop Output Impedance ZOUT f = 1 kHz, AV = 1 POWER SUPPLY 2.69 V 10 mV ±4 mA 20 Ω Power Supply Rejection Ratio Supply Current per Amplifier DYNAMIC PERFORMANCE PSRR ISY VSY = 2.7 V to 18 V −40°C ≤ TA ≤ +125°C IO = 0 mA −40°C ≤ TA ≤ +125°C 100 115 90 18 22 34 dB dB µA µA Slew Rate Settling Time to 0.1% Unity-Gain Crossover Phase Margin Gain Bandwidth Product −3 dB Closed-Loop Bandwidth Channel Separation EMI Rejection Ratio of +IN x SR ts UGC ΦM GBP f−3 dB CS EMIRR RL = 1 MΩ, CL = 10 pF, AV = 1 VIN = 1 V step, RL = 100 kΩ, CL = 10 pF VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 1 VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 1 VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 100 VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 1 f = 10 kHz, RL = 1 MΩ VIN = 100 mVPEAK; f = 400 MHz, 900 MHz, 1800 MHz, 2400 MHz 50 20 190 55 200 245 95 90 V/ms µs kHz Degrees kHz kHz dB dB NOISE PERFORMANCE Voltage Noise Voltage Noise Density en p-p en f = 0.1 Hz to 10 Hz f = 1 kHz f = 10 kHz 6 µV p-p 60 nV/√Hz 56 nV/√Hz Current Noise Density in f = 1 kHz 0.1 pA/√Hz Rev. B \| Page 5 of 24 Free Datasheet http://www.datasheet4u.com/ 5 Page Data Sheet 4 VSY = 2.7V 3 2 1 0 125°C –1 85°C 25°C –2 –3 –4 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 VCM (V) Figure 20. Input Bias Current vs. Common-Mode Voltage 10 VSY = 2.7V 1 100m 10m –40°C +25°C +85°C +125°C 1m 0.1m 0.01m 0.001 0.01 0.1 1 LOAD CURRENT (mA) 10 100 Figure 21. Output Voltage (VOH) to Supply Rail vs. Load Current 10 VSY = 2.7V 1 100m 10m –40°C +25°C +85°C +125°C 1m 0.1m 0.01m 0.001 0.01 0.1 1 LOAD CURRENT (mA) 10 100 Figure 22. Output Voltage (VOL) to Supply Rail vs. Load Current AD8657/AD8659 4 VSY = 18V 3 2 1 0 125°C –1 85°C 25°C –2 –3 –4 0 2 4 6 8 10 12 14 16 18 VCM (V) Figure 23. Input Bias Current vs. Common-Mode Voltage 10 VSY = 18V 1 100m 10m –40°C +25°C +85°C +125°C 1m 0.1m 0.01m 0.001 0.01 0.1 1 LOAD CURRENT (mA) 10 100 Figure 24. Output Voltage (VOH) to Supply Rail vs. Load Current 10 VSY = 18V 1 100m 10m –40°C +25°C +85°C +125°C 1m 0.1m 0.01m 0.001 0.01 0.1 1 LOAD CURRENT (mA) 10 100 Figure 25. Output Voltage (VOL) to Supply Rail vs. Load Current Rev. B \| Page 11 of 24 Free Datasheet http://www.datasheet4u.com/ 11 Page

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