LT1991ACMS-TRPBF

LT1991ACMS-TRPBF

  • 厂商:

    LINER

  • 封装:

  • 描述:

    LT1991ACMS-TRPBF - Precision, 100μA Gain Selectable Amplifi er - Linear Technology

  • 详情介绍
  • 数据手册
  • 价格&库存
LT1991ACMS-TRPBF 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
LT1991ACMS-TRPBF
1. 物料型号: - LT1991

2. 器件简介: - LT1991是一款精密、可变增益放大器,集成了一个运算放大器和八个精密电阻,无需外部组件即可实现从-13到14的增益,增益精度为0.04%。该器件非常适合用作差分放大器,具有大于75dB的共模抑制比(CMRR)。

3. 引脚分配: - P1 (Pin 1): 非反相增益输入,增益为1。 - P3 (Pin 2): 非反相增益输入,增益为3。 - P9 (Pin 3): 非反相增益输入,增益为9。 - M1 (Pin 10): 反相增益输入,增益为1。 - M3 (Pin 9): 反相增益输入,增益为3。 - M9 (Pin 8): 反相增益输入,增益为9。 - REF (Pin 5): 参考输入。 - $V_{CC}$ (Pin 7): 正电源。 - $V_{EE}$ (Pin 4): 负电源。 - OUT (Pin 6): 输出。

4. 参数特性: - 增益范围:非反相放大器增益范围0.07到14,反相放大器增益范围-0.08到-13。 - 输入偏置电压:最大50μV。 - 增益带宽积:560kHz。 - 电源电压范围:2.7V到36V。 - 电源电流:在5V供电下仅为100μA。 - 输出摆幅:在任一供电轨附近40mV内摆动。

5. 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。内部的精密电阻匹配使得该器件在差分放大器配置中具有出色的性能,共模抑制比大于75dB,增益误差在0.04%以内。

6. 应用信息: - 适用于手持仪器、医疗仪器、应变计放大器和差分转单端转换等应用。

7. 封装信息: - 提供10引脚MSOP和DFN封装,MSOP封装的尺寸为3mm×3mm,DFN封装的尺寸也为3mm×3mm,具有较低的0.8mm高度。
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