MAX4195:微功耗、单电源、满摆幅、精密仪表放大器

The MAX4194 is a variable-gain precision instrumentation amplifier that combines Rail-to-Rail; single-supply operation, outstanding precision specifications, and a high gain bandwidth. This amplifier is also offered in three fixed-gain versions: the MAX4195 (G = +1V/V), the MAX4196 (G = +10V/V), and the MAX4197 (G = +100V/V). The fixed-gain instrumentation amplifiers feature a shutdown function that reduces the quiescent current to 8µA. A traditional three operational amplifier configuration is used to achieve maximum DC precision. The MAX4194–MAX4197 have rail-to-rail outputs and inputs that can swing to 200mV below the negative rail and to within 1.1V of the positive rail. All parts draw only 93µA and operate from a single +2.7V to +7.5V supply or from dual ±1.35V to ±3.75V supplies. These amplifiers are offered in 8-pin SO packages and are specified for the extended temperature range (-40°C to +85°C). See the MAX4198/MAX4199 data sheet for single-supply, precision differential amplifiers.

关键特性
  • Low Power Consumption Is Ideal for Remote-Sensing and Battery-Powered Applications
    • +2.7V Single-Supply Operation
    • Low Power Consumption
      • 93µA Supply Current
      • 8µA Shutdown Current (MAX4195/MAX4196/MAX4197)
  • Precision Specifications Maximize Sensor Peformance
    • High Common-Mode Rejection: 115dB (G = +10V/V)
    • Input Common-Mode Range Extends 200mV Below GND
    • Low 50µV Input Offset Voltage (G ≥ +100V/V)
    • Low ±0.01% Gain Error (G = +1V/V)
    • 250kHz -3dB Bandwidth (G = +1V/V, MAX4194)
    • Rail-to-Rail Outputs
MAX4194、MAX4195、MAX4196、MAX4197:引脚配置
MAX4194、MAX4195、MAX4196、MAX4197:引脚配置
应用
  • 4mA至20mA环变送器
  • 电池供电/便携式设备
  • 桥式放大器
  • 数据采集系统
  • 医疗装置
  • 热电偶放大器
  • 变送器接口
数据手册DataSheet
语言下载文件备注
英文MAX4194-MAX4197.pdfRev 2; 05/2005
关键参数
Part NumberArchitectureAmps.VCMVRRail to RailAV
(V/V)
VSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(mA)
ICC per Amp.
(mA)
VOS
(µV)
CMRR @DC
(dB)
PSRR @DC
(dB)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
VCMVR
(V)
en
(nV/√Hz)
in
(pA/√Hz)
Noise Spec'd @Low Pwr. ShutdnOper. Temp.
(°C)
Package/PinsBudgetary
Price
to Neg. Railminmaxtypmaxmaxtyptypmaxtyptyp<See Notes
MAX4194Classic 3 Op. Amp.1NoOutput Only1 to 100002.77.50.0930.11450115120200.250.06VEE+0.2 to VCC-1.1720.110kHzNo-40 to +85SOIC(N)/8$2.31 @1k
MAX41951950.22VEE-0.2 to VCC-1.172SOIC(N)/8$2.74 @1k
MAX4196101150.34VEE+0.2 to VCC-1.131SOIC(N)/8$2.31 @1k
MAX41971001150.003VEE+0.2 to VCC-1.18.7SOIC(N)/8$2.58 @1k
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX4195ESA停止供货MAX4195ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX4195ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX4195ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX4195ESA-T停止供货MAX4195ESA+TN.SO;8引脚-40°C至+85°C参考数据资料
MAX4194-MAX4197.pdf MAX4197