LMP8640HV开发板套件编程器的评估板-运算放大器规格书PDF中文资料

LMP8640HV属于开发板套件编程器的评估板-运算放大器。由德州仪器制造生产的LMP8640HV评估板 - 运算放大器运算放大器评估板是装有元器件的电路，用于提供特定集成电路或器件的工作实例。该产品族中的电路板提供了运算放大器实例。每个 IC 的通道类型有单通道、双通道、三通道、四通道和八通道，放大器类型包括音频、自动归零、缓冲器、斩波器、电流反馈、电流检测、差动、差分、四通道、仪表、隔离、J-FET、限幅、对数、功率、可编程增益、采样保持、跨阻、可变增益、视频、电压反馈和零漂移。

1 Features

1• Typical Values, TA = 25°C

• High Common-Mode Voltage Range

– LMP8640: -2 V to 42 V

– LMP8640-Q1: -2 V to 42 V, AEC-Q100

– LMP8640HV: -2 V to 76 V

• Supply Voltage Range: 2.7 V to 12 V

• Gain Options: 20 V/V; 50 V/V; 100 V/V

• Max Gain Error: 0.25%

• Low Offset Voltage: 900 μV

• Input Bias Current: 13 μA

• PSRR: 85 dB

• CMRR (2.1V to 42V): 103 dB

• Temperature Range: -40°C to 125°C

• 6-Pin Thin SOT-23 Package

2 Applications

• High-Side Current Sense

• Vehicle Current Measurement

• Motor Controls

• Battery Monitoring

• Remote Sensing

• Power Management

3 Description

The LMP8640, LMP8640-Q1 and the LMP8640HV

are precision current sense amplifiers that detect small differential voltages across a sense resistor in

the presence of high input common mode voltages

with a supply voltage range from 2.7 V to 12 V.

The LMP8640 and LMP8640-Q1 accept input signals

with common mode voltage range from -2 V to 42 V,

while the LMP8640HV accepts input signal with common mode voltage range from -2 V to 76 V. The

LMP8640 and LMP8640HV have fixed gain for

applications that demand accuracy over temperature.

The LMP8640 and LMP8640HV come out with three different fixed gains 20 V/V, 50 V/V, 100 V/V ensuring

a gain accuracy as low as 0.25%. The output is

buffered in order to provide low output impedance.

This high side current sense amplifier is ideal for

sensing and monitoring currents in DC or battery powered systems, excellent AC and DC

specifications over temperature, and keeps errors in

the current sense loop to a minimum. The LMP8640

and LMP8640HV are ideal choice for industrial and

consumer applications, while the LMP8640-Q1 is an AEC-Q100 grade 1 qualified version of the LMP8640

for automotive applications. The LMP8640-x is

available in SOT-23-6 package.