LTC2431CMS#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2431CMS#TRPBF is a 20-bit delta-sigma analog-to-digital converter (ADC) from Analog Devices Inc., housed in a 10-lead MSOP package. It operates on a single supply voltage ranging from 2.7V to 5.5V, drawing 200µA during conversion and 4µA in autosleep mode. The device features differential inputs and a differential reference with a common-mode range spanning GND to VCC. Key electrical specifications include 3ppm integral nonlinearity (INL), 0.56ppm RMS noise, and no latency due to single-cycle digital filter settling. It integrates an internal oscillator for 50Hz/60Hz notch filtering and communicates via a flexible 3-wire interface compatible with SPI and MICROWIRE protocols.

Analog To Digital Converters (ADC) Feature Summary

• 20-bit resolution with 3ppm INL and 0.56ppm RMS noise
• No latency: Digital filter settles in a single cycle for accurate multiplexed readings
• Integrated internal oscillator providing >110dB rejection at 50Hz or 60Hz
• Differential input and reference with GND to VCC common-mode range

Analog To Digital Converters (ADC) Applications

• Direct sensor digitization
• Weight scales
• Gas analyzers
• Strain gauge transducers
• Industrial process control

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. or its authorized licensee. Ensure the component matches the 10-lead MSOP physical dimensions and pinout described in the official datasheet.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring high precision without the latency associated with traditional delta-sigma converters. It is suitable for multiplexed systems where each channel requires a full 20-bit reading immediately after switching. Ensure the external reference voltage remains between 0.1V and VCC for optimal performance.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC2430/LTC2431 family of micropower 20-bit ADCs. The LTC2431 variant specifically supports the 10-lead MSOP package format, distinguishing it from other pin-compatible options like the 16-lead SSOP versions found in the broader product line.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2430 is pin-compatible but may differ in specific frequency control configurations. Verify that any substitute maintains the 20-bit resolution, differential architecture, and 3-wire serial interface compatibility.