LMP90080QMHE/NOPB

Analog Front End (AFE) Overview

The LMP90080QMHE/NOPB is a single-channel, 16-bit sigma-delta analog-to-digital converter (ADC) from Texas Instruments. It operates with an analog supply voltage range of 2.85 V to 5.5 V and a digital supply voltage range of 2.7 V to 5.5 V. The device features a programmable gain amplifier (PGA) and integrates excitation current sources for sensor applications. It communicates via an SPI interface and supports sampling rates up to 214 S/s. Designed for automotive environments, it functions within a temperature range of -40°C to +125°C and is housed in a compact HTSSOP-28 package.

Analog Front End (AFE) Feature Summary

• 16-bit resolution with sigma-delta architecture
• Integrated PGA and excitation current sources
• Automotive qualification (AEC-Q100)
• Single-ended input configuration

Analog Front End (AFE) Applications

• RTD temperature sensing
• Strain gauge measurement
• Bridge sensor signal conditioning

Analog Front End (AFE) Procurement Notes

Verify the Q suffix indicates automotive grade qualification. Confirm the HTSSOP-28 package availability and check humidity sensitivity handling requirements during assembly. Ensure power supply decoupling matches the datasheet recommendations for stable operation.

Analog Front End (AFE) Selection Notes

Select this component when a single-channel, high-resolution ADC with integrated signal conditioning is required. The built-in current sources simplify RTD circuit designs by reducing external component count. Verify that the 214 S/s maximum data rate meets system timing constraints.

Analog Front End (AFE) Part Context

This part belongs to the LMP900xx family of precision ADCs designed for industrial and automotive sensor interfaces. It shares architectural similarities with the LMP90098 but offers single-channel capability instead of four channels, providing a cost-effective solution for point-of-sensor measurements.

Analog Front End (AFE) Replacement Considerations

The LMP90098MHE/NOPB serves as a multi-channel alternative if additional inputs are needed. For non-automotive applications, standard commercial grade variants may be considered if AEC-Q100 qualification is not mandatory.