LT1991AIDD-PBF

LT1991AIDD-PBF

  • 厂商:

    LINER

  • 封装:

  • 描述:

    LT1991AIDD-PBF - Precision, 100μA Gain Selectable Amplifi er - Linear Technology

  • 详情介绍
  • 数据手册
  • 价格&库存
LT1991AIDD-PBF 数据手册
LT1991 Precision, 100µA Gain Selectable Amplifier FEATURES n n DESCRIPTION The LT®1991 combines a precision operational amplifier with eight precision resistors to form a one-chip solution for accurately amplifying voltages. Gains from –13 to 14 with a gain accuracy of 0.04% can be achieved using no external components. The device is particularly well suited for use as a difference amplifier, where the excellent resistor matching results in a common mode rejection ratio of greater than 75dB. The amplifier features a 50μV maximum input offset voltage and a gain bandwidth product of 560kHz. The device operates from any supply voltage from 2.7V to 36V and draws only 100μA supply current on a 5V supply. The output swings to within 40mV of either supply rail. The resistors have excellent matching, 0.04% over temperature for the 450k resistors. The matching temperature coefficent is guaranteed less than 3ppm/°C. The resistors are extremely linear with voltage, resulting in a gain nonlinearity of less than 10ppm. The LT1991 is fully specified at 5V and ±15V supplies and from –40°C to 125°C. The device is available in space saving 10-lead MSOP and low profile (0.8mm) 3mm × 3mm DFN packages. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n n n n n n n n n n Pin Configurable as a Difference Amplifier, Inverting and Noninverting Amplifier Difference Amplifier Gain Range 1 to 13 CMRR >75dB Noninverting Amplifier Gain Range 0.07 to 14 Inverting Amplifier Gain Range –0.08 to –13 Gain Error
LT1991AIDD-PBF
物料型号: - LT1991

器件简介: - LT1991是一款精密的、可变增益的运算放大器,集成了八个精密电阻,能够实现从-13到14的增益范围,无需外部组件。特别适用于差分放大器配置,具有大于75dB的共模抑制比(CMRR)。

引脚分配: - P1 (Pin 1): 非反相增益1输入。 - P3 (Pin 2): 非反相增益3输入。 - P9 (Pin 3): 非反相增益9输入。 - M1 (Pin 10): 反相增益1输入。 - M3 (Pin 9): 反相增益3输入。 - M9 (Pin 8): 反相增益9输入。 - REF (Pin 5): 参考输入。 - OUT (Pin 6): 输出。 - $V_{CC}$ (Pin 7): 正电源。 - $V_{EE}$ (Pin 4): 负电源。 - Exposed Pad: 暴露的焊盘,必须焊接到PCB上。

参数特性: - 增益误差:<0.04% - 增益漂移:<3ppm/°C - 输入偏置电压:最大50μV - 增益带宽积:560kHz - 供电电流:在5V供电下为100μA - 工作电压范围:2.7V至36V - 输出摆幅:在任一供电轨40mV内

功能详解: - LT1991可以配置为差分放大器、反相放大器和非反相放大器。其内部的精密电阻使得无需外部组件即可实现精确的电压放大。 - 该器件能够在单电源或双电源配置中工作,提供真正的铁路到铁路输出能力。

应用信息: - LT1991适用于需要精密增益设置的应用,如传感器信号放大、医疗设备和高精度测量设备。 - 该器件还可以用于差分放大器配置,以提高信号的共模抑制能力。

封装信息: - 10-Lead (3mm × 3mm) Plastic DFN - 10-Lead Plastic MSOP
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