OPA2187CMOS Precision Operational Amplifier (Dual)

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1 Features

Low offset voltage: 10μV (typ)

Zero drift: 0.001μV/°C

Low noise: 15nV/√Hz

Power Supply Rejection Ratio (PSRR): 160dB

Common Mode Rejection Ratio (CMRR): 140dB

AOL: 160dB

Quiescent current: 100μA

Wide supply voltage: ±2.25V to ±18V

Rail-to-rail output operation

The input includes the negative rail

Low Bias Current: 100pA (typ)

Electromagnetic Interference (EMI) Filtered Input

tiny package

2 Applications

bridge amplifier

stress gauge

Test and Measurement Instruments

Inverter application

temperature measurement

Electronic scale

medical instrument

Resistance Thermal (RTD) Amplifiers

Precision Active Filter

Low-side current monitoring

3 Description

The OPAx187 family of op amps uses auto-zero technology to provide low offset voltage (1μV) and near-zero drift synchronously over time and temperature. These tiny, high-precision, low quiescent current amplifiers provide high input impedance and rail-to-rail outputs that swing within 5mV of the supply rails into high-impedance loads. The input common-mode range includes the negative rail. Single or dual supplies can be used from 4.5V to 36V (±2.25V to ±18V).

Single-channel versions of the OPAx187 devices are available in tiny 8-pin Very Thin Small Outline (VSSOP), 5-pin SOT-23, and 8-pin Small Outline Integrated Circuit (SOIC) packages. The dual version is available in 8-pin VSSOP and 8-pin SOIC packages. The quad version is available in 14-pin SOIC, 14-pin TSSOP and 16-pin WQFN packages. All versions are rated for an operating temperature range of –40°C to +125°C.

Shenzhen Yujixin Electronics Co., Ltd.

Contact: Mr. Xiao

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