型号INA141
品牌
分类仪表放大器
描述精密低功耗 G = 10,100 仪表放大器
相关操作
产品概述

参数

Number of channels 1
Vs (max) (V) 36
Vs (min) (V) 4.5
Input offset (±) (max) (µV) 50
Voltage gain (min) (V/V) 10
Voltage gain (max) (V/V) 100
Noise at 1 kHz (typ) (nV√Hz) 8
Features Overvoltage protection
CMRR (min) (dB) 117
Input offset drift (±) (max) (V/°C) 0.0000005
Input bias current (±) (max) (nA) 5
Iq (typ) (mA) 0.75
Bandwidth at min gain (typ) (MHz) 1
Gain error (±) (max) (%) 0.075
Operating temperature range (°C) -40 to 85
Rating Catalog
Type Fixed Gain
Gain nonlinearity (±) (max) (%) 0.002
Output swing headroom (to negative supply) (typ) (V) 0.9
Output swing headroom (to positive supply) (typ) (V) -0.9
Input common mode headroom (to negative supply) (typ) (V) 1.7
Input common mode headroom (to positive supply) (typ) (V) -1.4
Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.2

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • LOW OFFSET VOLTAGE: 50µV max
  • LOW DRIFT: 0.5µV/°C max
  • ACCURATE GAIN: ±0.05% at G = 10
  • LOW INPUT BIAS CURRENT: 5nA max
  • HIGH CMR: 117dB min
  • INPUTS PROTECTED to ±40V
  • WIDE SUPPLY RANGE: ±2.25 to ±18V
  • LOW QUIESCENT CURRENT: 750µa
  • 8-PIN PLASTIC DIP, SO-8

说明

The INA141 is a low power, general purpose instrumentation amplifier offering excellent accuracy. Its versatile 3-op amp design and small size make it ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100).

Simple pin connections set an accurate gain of 10 or 100V/V without external resistors. Internal input protection can withstand up to ±40V without damage.

The INA141 is laser trimmed for very low offset voltage (50µV), drift (0.5µV/°C) and high common-mode rejection (117dB at G = 100). It operates with power supplies as low as ±2.25V, and quiescent current is only 750µA—ideal for battery operated systems.

The INA141 is available in 8-pin plastic DIP, and SO-8 surface-mount packages, specified for the -40°C to +85°C temperature range.