ADA4522-2ARZ-R7

精密放大器 55V Low Noise Zero Drift OpAmp 2x

Product Details

The ADA4522-1 / ADA4522-2 / ADA4522-4 are single/dual/quad channel, zero drift op amps with low noise and power, ground sensing inputs, and rail-to-rail output, optimized for total accuracy over time, temperature, and voltage conditions. The wide operating voltage and temperature ranges, as well as the high open-loop gain and very low dc and ac errors make the devices well suited for amplifying very small input signals and for accurately reproducing larger signals in a wide variety of applications.

The ADA4522-1 / ADA4522-2 / ADA4522-4 performance is specified at 5.0 V, 30 V, and 55 V power supply voltages. These devices operate over the range of 4.5 V to 55 V, and are excellent for applications using single-ended supplies of 5 V, 10 V, 12 V, and 30 V, or for applications using higher single supplies and dual supplies of ±2.5 V, ±5 V, and ±15 V. The ADA4522-1 /  ADA4522-2 / ADA4522-4 use on-chip filtering to achieve high immunity to electromagnetic interference EMI.

The ADA4522-1 / ADA4522-2 / ADA4522-4 are fully specified over the extended industrial temperature range of −40°C to +125°C and are available in 8-lead MSOP, 8-lead SOIC, 14-lead SOIC, and 14-lead TSSOP packages.

Applications

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Inductance, capacitance, and resistance LCR meter/megohmmeter front-end amplifiers

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Load cell and bridge transducers

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Magnetic force balance scales

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High precision shunt current sensing

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Thermocouple/resistance temperature detector RTD sensors

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Programmable logic controller PLC input and output amplifiers

### Features and Benefits

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Low offset voltage: 5 μV maximum

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Extremely low offset voltage drift: 22 nV/°C maximum

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Low voltage noise density: 

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5.8 nV/√Hz typical 

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117 nV p-p typical from 0.1 Hz to 10 Hz

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Low input bias current: 50 pA typical

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Unity-gain crossover: 3 MHz typical

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Single-supply operation: input voltage range includes ground and rail-to-rail output

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Wide range of operating voltages 

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Single-supply operation: 4.5 V to 55 V 

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Dual-supply operation: ±2.25 V to ±27.5 V

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Integrated EMI filters

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Unity-gain stable