LMP91051MT/NOPB

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The LMP91051MT/NOPB is an analog front-end (AFE) device from Texas Instruments that provides programmable gain and digital calibration capabilities to data acquisition systems. It is used to manage the signal levels of analog signals prior to A/D conversion, enabling efficient and reliable data transfer between analog and digital systems. It is ideal for applications such as industrial control, medical diagnostics and testing, and consumer electronics.

The LMP91051MT/NOPB is a four-channel AFE that offers a programmable gain amplifier (PGA), an analog-to-digital converter (ADC), and a digital-to-analog converter (DAC). The device includes a multiplexer (MUX) with four input channels that can be used to select analog signals from different sources. It also features a low-noise input stage, a narrow bandwidth audio filter, and a low-speed sample rate converter (SRC) for increased data resolution.

The LMP91051MT/NOPB provides adjustable input and output gains, as well as programmable digital calibration capabilities. On-chip calibration is also available that allows the device to automatically adjust the gains to meet required levels of accuracy without manual intervention. The device includes a simple 3-wire serial port interface (SPI) that enables configuration of the gains and calibration parameters from a host processor.

The LMP91051MT/NOPB supports a wide input voltage range (4V to 36V) and high total harmonic distortion (THD) measurement accuracy. It features a programmable gain amplifier (PGA) with a maximum gain of 104 dB, making it well suited for high accuracy signal conditioning applications. The device also provides excellent sensitivity performance up to 6.75mV/°C.

The LMP91051MT/NOPB is designed to operate from a single supply voltage between 2.7V and 5.5V, making it ideal for portable and battery powered applications. The device includes two adjustable internal linear regulators that can be used to regulate the supply voltages of supporting components, such as ADCs, DACs, and external filters.

In addition to data acquisition and signal conditioning applications, the LMP91051MT/NOPB can be used in a variety of applications requiring precision analogue control. The device has been optimized to provide high precision and accurate responses to control signals and is suitable for use as a signal conditioning and/or control device in communications systems, multi-axis motor controllers, robotic systems, and audio/video systems.

The LMP91051MT/NOPB operates from an analog signal and is equipped with configurable parameters and functions that can be tuned to customize the response characteristics. An internal phase detector is also included, allowing the chip to track the current phase of the incoming signal and provide accurate control outputs. The device also features a wide range of configurable sample rates and resolutions, making it well suited for high sample rate applications such as audio, video, and communications.

In summary, the LMP91051MT/NOPB is a programmable analog front-end (AFE) device that offers a high degree of flexibility and performance in data acquisition and signal conditioning applications. Its wide input voltage range, programmable gain, and digital calibration capabilities make it the ideal solution for a variety of analog signal management systems.

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