型号INA170
品牌
分类模拟电流检测放大器
描述2.7V 至 60V、双向、400kHz 可变增益电流感应放大器
相关操作
产品概述

参数

Product type Analog output
Common-mode voltage (max) (V) 60
Common-mode voltage (min) (V) 2.7
Input offset (±) (max) (V) 0.001
Input offset drift (±) (typ) (V/°C) 0.000001
Voltage gain (V/V) Adjustable
CMRR (min) (dB) 100
Bandwidth (MHz) 0.4
Supply voltage (max) (V) 60
Supply voltage (min) (V) 2.7
Iq (max) (mA) 0.125
Number of channels 1
Comparators (#) 0
Gain error (%) 2
Gain error drift (±) (max) (ppm/°C) 100
Features Bi-directional, Current Output
Rating Catalog
Operating temperature range (°C) -40 to 85

封装 | 引脚 | 尺寸

VSSOP (DGK) 8 14.7 mm² 3 x 4.9

特性

  • COMPLETE BIDIRECTIONAL CURRENT MEASUREMENT CIRCUIT
  • WIDE SUPPLY RANGE: 2.7V to 40V
  • SUPPLY-INDEPENDENT COMMON-MODE VOLTAGE: 2.7V TO 60V
  • RESISTOR PROGRAMMABLE GAIN SET
  • LOW QUIESCENT CURRENT: 75µA (typ)
  • MSOP-8 PACKAGE
  • APPLICATIONS
    • CURRENT SHUNT MEASUREMENT:
        Automotive, Telephone, Computers, Power Systems, Test, General Instrumentation
    • PORTABLE AND BATTERY-BACKUP SYSTEMS
    • BATTERY CHARGERS
    • POWER MANAGEMENT
    • CELL PHONES

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说明

The INA170 is a high-side, bidirectional current shunt monitor featuring a wide input common-mode voltage range, low quiescent current, and a tiny MSOP-8 package.

Bidirectional current measurement is accomplished by output offsetting. The offset voltage level is set with an external resistor and voltage reference. This permits measurement of a bidirectional shunt current while using a single supply for the INA170.

Input common-mode and power-supply voltages are independent. Input voltage can range from +2.7V to +60V on any supply voltage from +2.7V to +40V. Low 10µA input bias current adds minimal error to the shunt current.

The INA170 converts a differential input voltage to a current output. This current develops a voltage across an external load resistor, setting any gain from 1 to over 100.

The INA170 is available in an MSOP-8 package, and is specified over the extended industrial temperature range, –40°C to +85°C with operation from –55°C to +125°C.