INA322:微功耗单电源 CMOS 仪表放大器

The INA322 family is a series of low cost, rail-to-rail output, micropower CMOS instrumentation amplifiers that offer wide-range, single-supply, as well as bipolar-supply operation. The INA322 family provides low-cost, low-noise amplification of differential signals with micropower current consumption of 40?A. When shutdown the INA322 has a quiescent current of less than 1?A. Returning to normal operations within nanoseconds, the shutdown feature makes the INA322 optimal for low-power battery or multiplexing applications.

Configured internally for 5V/V gain, the INA322 offers exceptional flexibility with user-programmable external gain resistors. The INA322 reduces common-mode error over frequency and with CMRR remaining high up to 3kHz, line noise and line harmonics are rejected.

The low-power design does not compromise on bandwidth or slew rate, making the INA322 ideal for driving sampling Analog-to-Digital (A/D) converters as well as general-purpose applications. With high precision, low cost, and small packaging, the INA322 outperforms discrete designs, while offering reliability and performance.

产品特性
  • LOW COST
  • LOW QUIESCENT CURRENT: 40?A/channel
    Shut Down: < 1?A
  • HIGH GAIN ACCURACY: G = 5, 0.07%, 2ppm/°C
  • GAIN SET WITH EXTERNAL RESISTORS
  • LOW BIAS CURRENT: 10pA
  • BANDWIDTH: 500kHz, G = 5V/V
  • RAIL-TO-RAIL OUTPUT SWING: (V+) - 0.02V
  • WIDE TEMPERATURE RANGE: -55°C to +125°C
  • SINGLE VERSION IN MSOP-8 PACKAGE AND DUAL VERSION IN TSSOP-14 PACKAGE
  • APPLICATIONS
    • INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermistor, Position
    • PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
    • A/D CONVERTER SIGNAL CONDITIONING
    • DIFFERENTIAL LINE RECEIVERS WITH GAIN
    • FIELD UTILITY METERS
    • PCMCIA CARDS
    • COMMUNICATION SYSTEMS
    • TEST EQUIPMENT
    • AUTOMOTIVE INSTRUMENTATION
  • INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermistor, Position
  • PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
  • A/D CONVERTER SIGNAL CONDITIONING
  • DIFFERENTIAL LINE RECEIVERS WITH GAIN
  • FIELD UTILITY METERS
  • PCMCIA CARDS
  • COMMUNICATION SYSTEMS
  • TEST EQUIPMENT
  • AUTOMOTIVE INSTRUMENTATION
参数parametrics
参数INA322
Number of Channels (#)1
Vs (Min) (V)2.5
Vs (Max) (V)5.5
CMRR (Min) (dB)60
Input Offset (+/-) (Max) (uV)10000
Input Offset Drift (+/-) (Max) (uV/C)7
Input Bias Current (+/-) (Max) (nA)0.01
Noise at 1kHz (Typ) (nV/rt(Hz))100
Iq (Typ) (mA)0.04
Bandwidth at Min Gain (Typ) (MHz)0.5
Gain (Min) (V/V)5
Gain (Max) (V/V)1000
Gain Error (+/-) (Max) (%)0.4
RatingCatalog
Operating Temperature Range (C)-55 to 125
Package GroupVSSOP
Approx. Price (US$)0.95 | 1ku
Package Size: mm2:W x L (PKG)8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
Noise at 0.1 Hz - 10 Hz (Typ) (uVpp)20
Gain Non-Linearity (+/-) (Max) (%)0.01
数据表?(1)
标题类型大小 (KB)日期
microPower Single-Supply CMOS Instrumentation AmplifierPDF8092006年 2月 9日
应用手册?(1)
标题类型大小 (KB)日期
所选封装材料的热学和电学性质PDF6452008年 10月 16日
选择与解决方案指南?(1)
标题类型大小 (KB)日期
模拟信号链路产品指南 (Rev. B)PDF55182013年 9月 3日
模型?(3)
标题种类类型大小 (KB)日期
INA322 PSpice ModelPSpice ModelZIP56?KB2011年 10月 4日
INA322 TINA-TI Reference DesignTINA-TI Reference DesignTSC85?KB2011年 10月 3日
INA322 TINA-TI Spice ModelTINA-TI Spice ModelZIP3?KB2011年 10月 4日
开发工具?(2)
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
计算仪表放大器的输入共模范围INA-CMV-CALC计算工具
订购型号
型号试生产 / 生产材料状态温度(oC)价格(美金) | Quantity封装 | 引脚器件标记封装数量 | 载体
INA322EA/250生产ACTIVE-55 to 1251.10 | 1kuVSSOP?(DGK)C22250 | SMALL T&R
INA322EA/250G4生产ACTIVE-55 to 1251.10 | 1kuVSSOP?(DGK)C22250 | SMALL T&R
INA322EA/2K5生产ACTIVE-55 to 1250.95 | 1kuVSSOP?(DGK)C222500 | LARGE T&R
microPower Single-Supply CMOS Instrumentation Amplifier INA322
所选封装材料的热学和电学性质 DCP010505B
模拟信号链路产品指南 (Rev. B) BQ24392
INA322 PSpice Model INA322
INA322 TINA-TI Reference Design INA322
INA322 TINA-TI Spice Model INA322
INA322
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