INA270:Voltage Output High-Side Measurement Current-Shunt Monitor

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  • INA282 -  The INA282 is a higher-precision device

The INA270 and INA271 family of voltage-output, current-sense amplifiers can sense drops across shunt resistors at common-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA270 and INA271 pinouts readily enable filtering.

The INA270 and INA271 are available with two gain options: 14 V/V and 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops.

The INA270 and INA271 operate from a single +2.7-V to +18-V supply, drawing 700 µA (typical) of supply current. The devices are specified over the extended operating temperature range of –40°C to +125°C and are offered in an SOIC-8 package.

产品特性
  • Wide Common-Mode Range: –16 V to +80 V
  • CMRR: 120 dB
  • Accuracy:
    ±0.5-mV Offset (typ)
    ±0.2% Gain Error (typ)
    2.5 µV/°C Offset Drift (typ)
    50 ppm/°C Gain Drift (max)
  • Bandwidth: Up to 130 kHz
  • Two Gain Options Available:
    14 V/V (INA270)
    20 V/V (INA271)
  • Quiescent Current: 700 µA (typ)
  • Power Supply: +2.7 V to +18 V
  • Provision for Filtering
参数parametrics
参数INA270
Common Mode Voltage (Max) (V)80
Common Mode Voltage (Min) (V)-16
Input Offset (+/-) (Max) (uV)2500
Input Offset Drift (+/-) (Typ) (uV/C)2.5
Gain (V/V)14 20
Gain Error (%)1
CMRR (Min) (dB)100
Bandwidth (kHz)130
Supply Voltage (Max) (V)18
Supply Voltage (Min) (V)2.7
Iq (Max) (mA)0.95
Special FeaturesLow-side Capable
RatingCatalog
Operating Temperature Range (C)-40 to 125
Package GroupSOIC
Package Size: mm2:W x L (PKG)8SOIC: 29 mm2: 6 x 4.9(SOIC)
Approx. Price (US$)0.90 | 1ku
数据表 (1)
标题类型大小 (KB)日期
INA27x Voltage Output, Unidirectional Measurement Current-Shunt MonitorPDF10242014年 11月 5日
应用手册 (6)
标题类型大小 (KB)日期
高压电源轨的精密电流测量PDF2342016年 11月 28日
所选封装材料的热学和电学性质PDF6452008年 10月 16日
Precision Current Measurements on High Voltage Power Supply RailsPDF1002016年 12月 2日
High-Side DC Motor Current ProtectionPDF1142016年 12月 1日
High-Side Drive, High-Side Solenoid Monitor With PWM RejectionPDF1192016年 12月 1日
Low-Drift, Precision, In-Line Motor Current Measurements with PWM RejectionPDF1502016年 12月 1日
模型 (3)
标题种类类型大小 (KB)日期
INA270 PSpice ModelPSpice ModelZIP37 KB2011年 9月 29日
INA270 TINA-TI Reference DesignTINA-TI Reference DesignTSC175 KB2011年 9月 30日
INA270 TINA-TI Spice ModelTINA-TI Spice ModelZIP6 KB2011年 9月 30日
软件 (1)
Current-Shunt Error Calculation List
开发工具 (1)
培训内容型号类型
基于 SPICE 的模拟仿真程序TINA-TI电路设计和仿真
订购型号
型号试生产 / 生产材料状态温度(oC)价格(美元) | Quantity封装 | 引脚器件标记封装数量 | 载体
INA270AID生产ACTIVE-40 to 1251.23 | 1kuSOIC (D)I270A75 | TUBE
INA270AIDR生产ACTIVE-40 to 1251.02 | 1kuSOIC (D)I270A2500 | LARGE T&R
INA27x Voltage Output, Unidirectional Measurement Current-Shunt Monitor INA270
高压电源轨的精密电流测量 INA282-Q1
所选封装材料的热学和电学性质 DCP010505B
Precision Current Measurements on High Voltage Power Supply Rails INA282-Q1
High-Side DC Motor Current Protection LMP8640HV
High-Side Drive, High-Side Solenoid Monitor With PWM Rejection LMP8640HV
Low-Drift, Precision, In-Line Motor Current Measurements with PWM Rejection LMP8640HV
INA270 PSpice Model INA270A-Q1
INA270 TINA-TI Reference Design INA270A-Q1
INA270 TINA-TI Spice Model INA270A-Q1
Current-Shunt Error Calculation List INA270
INA270