LMP8603 - 60V、双向、低侧/高侧、电压输出电流感测放大器

LMP8603是TI德州仪器公司的一款电流分流模拟输出产品，LMP8603是60V、双向、低侧/高侧、电压输出电流感测放大器，本站介绍了LMP8603的封装应用图解、特点和优点、功能等，并给出了与LMP8603相关的TI元器件型号供参考。

LMP8603 - 60V、双向、低侧/高侧、电压输出电流感测放大器 - 电流分流模拟输出 - 电流感应放大器 - 德州仪器

产品描述

The LMP8602 and LMP8603 are fixed gain precision amplifiers. The parts will amplify and filter small differential signals in the presence of high common mode voltages. The input common mode voltage range is –22V to +60V when operating from a single 5V supply. With a 3.3V supply, the input common mode voltage range is from –4V to +27V. The LMP8602 and LMP8603 are members of the Linear Monolithic Precision (LMP®) family and are ideal parts for unidirectional and bidirectional current sensing applications. All parameter values of the parts that are shown in the tables are 100% tested and all bold values are also 100% tested over temperature.

The parts have a precise gain of 50x for the LMP8602 and 100x for the LMP8603, which are adequate in most targeted applications to drive an ADC to its full scale value. The fixed gain is achieved in two separate stages, a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 5x for the LMP8602 and 10x for the LMP8603. The connection between the two stages of the signal path is brought out on two pins to enable the possibility to create an additional filter network around the output buffer amplifier. These pins can also be used for alternative configurations with different gain as described in the applications section.

The mid-rail offset adjustment pin enables the user to use these devices for bidirectional single supply voltage current sensing. The output signal is bidirectional and mid-rail referenced when this pin is connected to the positive supply rail. With the offset pin connected to ground, the output signal is unidirectional and ground-referenced.

The LMP8602 and LMP8603 are available in a 8–Pin SOIC package and in a 8–Pin VSSOP package.

The LMP8602Q and LMP8603Q incorporate enhanced manufacturing and support processes for the automotive market, including defect detection methodologies. Reliability qualification is compliant with the requirements and temperature grades defined in the AEC Q100 standard.

产品特性

Unless Otherwise Noted, Typical Values at TA = 25°C, VS = 5.0V, Gain = 50x (LMP8602), Gain = 100x (LMP8603)
TCVos 10μV/°C max
CMRR 90 dB Min
Input Offset Voltage 1 mV Max
CMVR at VS = 3.3V −4V to 27V
CMVR at VS = 5.0V −22V to 60V
Operating Ambient Temperature Range −40°C to 125°C
Single Supply Bidirectional Operation
All Min / Max Limits 100% Tested
LMP8602Q and LMP8603Q Available in Automotive AEC-Q100 Grade 1 Qualified Version

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