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微功耗、单电源、满摆幅、精密差分放大器

产品详情

主要特征

应用/用途

Parametric specs for Instrumentation/Difference Amplifiers
Architecture Differential Amp.
# Amplifiers 1
VCMVR (to Neg. Rail) Yes
Rail to Rail Input/Output
AV (V/V) 1
ICC per Amp. (mA) (typ) 0.042
VOS (µV) (max) 500
CMRR @DC (dB) (typ) 90
PSRR @DC (dB) (typ) 120
Unity Gain BW (MHz) (typ) 0.175
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
2.01
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参量

Parametric specs for Instrumentation/Difference Amplifiers
Architecture Differential Amp.
# Amplifiers 1
VCMVR (to Neg. Rail) Yes
Rail to Rail Input/Output
AV (V/V) 1
ICC per Amp. (mA) (typ) 0.042
VOS (µV) (max) 500
CMRR @DC (dB) (typ) 90
PSRR @DC (dB) (typ) 120
Unity Gain BW (MHz) (typ) 0.175
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
2.01

主要特征

  • Low 0.01% Gain Error
  • High Common-Mode Rejection: 110dB (MAX4199)
  • 10µV Input Offset Voltage (MAX4199)
  • 30µV Input Offset Voltage (MAX4198)
  • +2.7V to +7.5V Single-Supply Operation
  • 42µA Supply Current
  • 175kHz (MAX4198) and 45kHz (MAX4199) -3dB Bandwidth
  • 6.5µA Shutdown Current
  • Rail-to-Rail Outputs Drive 5kΩ Loads
  • Input Voltage Range Extends 100mV Beyond-the-Rails (MAX4198)
  • Available in Space-Saving 8-Pin µMAX Package

应用/用途

  • 电流检测放大器
  • 数据采集
  • 差分电压放大
  • 仪表放大器电路
  • 便携式电池供电设备
  • 变送器接口

描述

The MAX4198/MAX4199 low-power, rail-to-rail differential amplifiers are ideal for single-supply applications that benefit from a low 0.01% gain error. The MAX4198 is factory trimmed to a fixed gain of +1V/V, and the MAX4199 is trimmed to a fixed gain of +10V/V. Capable of operating from a single +2.7V to +7.5V supply or from dual ±1.35V to ±3.75V supplies, they consume only 42µA while achieving -3dB bandwidths of 175kHz (MAX4198) and 45kHz (MAX4199). These amplifiers feature a shutdown mode that reduces the supply current to 6.5µA.

The MAX4198/MAX4199 can drive 5kΩ loads to within 100mV from each rail. The standard differential amplifier configurations provide common-mode rejection of 90dB for the MAX4198 and 110dB for the MAX4199. The input common-mode voltage range for the MAX4198 extends 100mV Beyond-the-Rails™.

The MAX4198/MAX4199 are offered in a space-saving 8-pin µMAX® package. For complete micropower, rail-to-rail instrumentation amplifiers, see the MAX4194-MAX4197 data sheet.

简化框图

MAX4198、MAX4199:功能框图 MAX4198、MAX4199:功能框图 Zoom icon

支持和培训

在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心