MAX5165NCCM+T

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MAX5165NCCM+T is an instrumentation amplifier (IA) designed to address the accuracy and bandwidth requirements in a wide range of instrumentation, data acquisition and communications applications. This amplifier features a fully differential topology and integrated current source to reduce common-mode and output offset voltages. It provides high accuracy and low noise in order to accurately measure the signal under test, and it is digitally programmable for gain and bandwidth using a single external resistor.

The MAX5165NCCM+T has a typical gain of 8. It is a single-ended, low-power noninverting amplifier consisting of three amplifier stages: input, differential, and output. The input stage is a differential full-wave rectifier that converts the input signal into a differential voltage. The differential amplifier stage is a unity-gain amplifier with low output impedance and transimpedance gain to make signal conversion easier. The output stage is a unity-gain amplifier with high output impedance and low transimpedance gain.

The amplifier’s rail-to-rail output stage provides high signal swing at the output, while its low-power input stage consumes very little power. The MAX5165NCCM+T can also be used to provide programmable gain/bandwidth adjustment. In addition, it offers excellent accuracy, temperature stability and low power consumption. It is well suited for systems with low-level signal processing.

The main application field for MAX5165NCCM+T amplifiers is in instrumentation, data acquisition, and communications. It can be used for applications such as flow and pressure measurement, strain gauge and load cell measurement, analog-to-digital conversion, audio signal processing, medical instrumentation and testing, power supply monitoring, and even for measuring very slow signals, like those generated by transducers.

MAX5165NCCM+T amplifiers are commonly used as part of a gain-selectable instrumentation amplifier circuit. The amplifier is designed to accept an input bipolar signal and provide an amplified output proportional to the input signal and the gain setting. The gain is set via an external resistor connected between the amplifier’s noninverting (POSITIVE) input and ground. By varying the resistance between the positive input and ground, the gain of the amplifier can be adjusted to fit the application’s requirements. The gain can be adjusted from 0 dB to 30 dB in 1 dB increments, depending on the resistance value of the external resistor.

The low offset voltage and low noise of the MAX5165NCCM+T greatly contribute to the accuracy of the instrumentation amplifier circuit. The wide common-mode input range (CMR) allows the amplifier to accept input signals with bipolar voltages between 0.2 V and 0.85 V. The low power consumption of the amplifier helps improve battery life in mobile applications, while its wide gain range and large supply range make it suitable for large and low-voltage systems.

Overall, the MAX5165NCCM+T amplifier provides a high level of accuracy, high bandwidth and low power consumption for instrumentation and data acquisition systems. It is a versatile, low-power solution for wide range of applications.

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