Data Sheet
FEATURES
Micropower at high voltage (18 V): 22 μA maximum Low offset voltage: 350 μV maximum Low input bias c...
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....