型号INA146
品牌
分类差分放大器
描述高电压可编程增益差分放大器
相关操作
产品概述

参数

Number of channels 1
Vs (min) (V) 2.76
Vs (max) (V) 36
CMRR (min) (dB) 76
Common-mode input low (min) (V) -100
Common-mode input high (max) (V) 100
Input offset (±) (max) (V) 0.005
Iq (typ) (mA) 0.6
Slew rate (typ) (V/µs) 0.45
Voltage gain (min) (V/V) 0.1
Voltage gain (max) (V/V) 100
Small-signal bandwidth (typ) (Hz) 500000
Rating Catalog
Operating temperature range (°C) -40 to 85
Gain drift (max) (ppm/°C) 1
Gain error (±) (max) (%) 0.1

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • HIGH COMMON-MODE VOLTAGE:
    • +40V at V S = +5V
    • ±100V at V S = ±15V
  • DIFFERENTIAL GAIN = 0.1V/V TO 100V/V:
    • Set with External Resistors
  • LOW QUIESCENT CURRENT: 570µA
  • WIDE SUPPLY RANGE:
    • Single Supply: 4.5V to 36V
    • Dual Supplies: ±2.25V to ±18V
  • LOW GAIN ERROR: 0.025%
  • HIGH CMR: 80dB
  • SO-8 PACKAGE

说明

The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection. The input common-mode range ex-tends beyond both supply rails, making the INA146 well-suited for both single and dual supply applica-tions.

On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Ex-cellent TCR tracking of these resistors assures contin-ued high precision over temperature.

A 10:1 difference amplifier provides 0.1V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100V can be measured. Gains greater than 0.1V/V can be set with an external resistor pair without affect-ing the common-mode input range.

The INA146 is available in the SO-8 surface-mount package specified for the extended industrial tempera-ture range, -40°C to +85°C.