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OP295GSZ-REEL7

Dual precision op-amp, 100uV Vos, 0.1uV/C drift, R-R out, SOIC-14

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Manufacturer Part：

OP295GSZ-REEL7

Package：

SOIC-14 (8.75 x 3.91 x 1.50 mm)

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Description

Product Overview

The OP295GSZ-REEL7 from Analog Devices is a dual rail-to-rail precision operational amplifier with 100uV offset, 0.1uV/°C drift, 500uV noise, and 1.6MHz GBW operating from +/-2V to +/-18V in a 14-pin SOIC package.

Key Specifications

Channels 2 (Dual)
Supply Voltage +/-2 V to +/-18 V (4V to 36V)
Offset Voltage 100 uV typical, 340 uV max
Offset Drift 0.1 uV/°C typical
Input Bias Current 5 nA typical
Noise (0.1-10Hz) 500 nV p-p
GBW 1.6 MHz
Slew Rate 0.35 V/us
Supply Current 500 uA per amplifier
Output Swing Rail-to-rail
Operating Temperature -40°C to +85°C
Package SOIC-14

Features

  • Dual precision op-amp with 100uV offset and 0.1uV/°C drift
  • Rail-to-rail output with +/-2V to +/-18V wide supply range

Applications

  • Precision instrumentation and transducer amplifiers

The OP295GSZ-REEL7 from Analog Devices is a dual rail-to-rail output precision operational amplifier using a BiCMOS process to achieve 100uV typical offset voltage and 0.1uV/C drift without chopper stabilization. The device operates from +/-2V to +/-18V supply with rail-to-rail output swing and an input common-mode range that extends to the negative rail. The low 500nV p-p noise from 0.1-10Hz makes it suitable for precision DC and low-frequency applications. The 1.6MHz GBW and 500uA per-amplifier quiescent current provide a good balance of speed and power consumption. The device is unity-gain stable and can drive capacitive loads up to 1000pF. The GSZ suffix denotes the 14-pin SOIC (narrow body) package, and the REEL7 suffix indicates 1000-piece tape and reel.

The OP295GSZ-REEL7 is a BiCMOS precision operational amplifier. (1) BiCMOS Process: The device combines bipolar input transistors (for low noise and low offset) with CMOS output transistors (for rail-to-rail output swing). The input stage uses a PNP differential pair for common-mode range to the negative rail, while the output stage uses common-source PMOS and NMOS transistors for rail-to-rail output swing. (2) Precision Trimming: The offset voltage is trimmed using zener-zapping during wafer-level test, achieving 100uV typical without the clock-feedthrough noise associated with chopper-stabilized amplifiers. (3) Rail-to-Rail Output: The CMOS output stage can swing to within a few millivolts of either supply rail at light loads. This maximizes the dynamic range in single-supply applications and low-voltage systems. (4) Low Noise: The bipolar input transistors provide lower voltage noise than CMOS-input op-amps, with 500nV p-p noise from 0.1-10Hz and 19nV/sqrtHz at 1kHz.

Pin Name Function
1 OUT A Output A
2 IN- A Inverting input A
3 IN+ A Non-inverting input A
4 V- Negative supply
5 IN+ B Non-inverting input B
6 IN- B Inverting input B
7 OUT B Output B
8-14 NC/V+ No connect / Positive supply
  • Precision transducer amplifiers with 100uV offset and R-R output
Manufacturer Part Number Package Notes
ADI OP295GPZ DIP-8 Through-hole version
TI OPA2991IDR SOIC-8 Dual, 40V, R-R, lower cost
TI OPA2191IDR SOIC-8 36V, +/-5uV offset
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