MAX4199

微功耗、单电源、满摆幅、精密差分放大器


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说明

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.
MAX4198、MAX4199:功能框图 MAX4198、MAX4199:功能框图 放大+

关键特性

  • 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

  • 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
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)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
VCMVR
(V)
en
(nV/√Hz)
Noise Spec'd @Low Pwr. ShutdnOper. Temp.
(°C)
Package/PinsBudgetary
Price
to Neg. Railminmaxtypmaxmaxtyptyptyptyp<See Notes
MAX4198 Differential Amp.1YesInput/Output12.77.50.0420.055500901200.1750.07VEE-0.1 to VCC+0.15810kHzNo-40 to +85
SOIC (N)/8
UMAX/8
$1.90 @1k
MAX4199 Output Only100.0450.1VEE-0.1 to VCC-1.038
SOIC (N)/8
UMAX/8
$1.80 @500
查看所有Instrumentation/Difference Amplifiers (11)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

技术资料

设计指南 746 高边电流检测测量:电路和原理

质量和环境数据

申请可靠性报告: MAX4199 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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类型 编号 PDF 标题
设计指南 746 高边电流检测测量:电路和原理