LTC2401CMS#PBF

Overview

The LTC2401CMS#PBF is a single-channel, 24-bit micropower analog-to-digital converter (ADC) in a 10-lead MSOP package. It utilizes delta-sigma technology with an integrated oscillator and digital filter architecture that settles in a single cycle, eliminating latency for multiplexed applications. The device operates on a single supply voltage from 2.7V to 5.5V with a typical supply current of 200µA. Key electrical specifications include 4ppm integral nonlinearity (INL), 0.6ppm RMS noise, and greater than 110dB rejection at 50Hz or 60Hz. It features an extended input range of –12.5% VREF to 112.5% VREF and communicates via a 2- or 3-wire serial interface compatible with SPI and MICROWIRE protocols.

Feature Summary

• 24-bit resolution with no missing codes and 4ppm INL
• Single conversion settling time eliminates latency in multiplexed systems
• Integrated oscillator provides >110dB rejection at 50Hz/60Hz without external components
• Extended input range accommodates offset and overrange conditions

Applications

• Direct temperature measurement
• Gas analyzers
• Strain gauge transducers
• Industrial process control data acquisition

Procurement Notes

Verify the specific suffix #PBF indicates lead-free and RoHS compliance status according to Analog Devices documentation. Confirm the 'C' grade designation corresponds to the commercial operating temperature range of 0°C to 70°C. Ensure the MSOP-10 package dimensions match the target PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component for high-precision applications requiring low power consumption and fast response in multiplexed channels. The internal oscillator simplifies design by removing the need for external crystals. Consider the LTC2402 if two independent analog input channels are required instead of the single channel provided by the LTC2401.

Part Context

This part belongs to the LTC2401/LTC2402 family of micropower, no-latency delta-sigma ADCs. The CMS8 variant denotes the commercial temperature grade housed in a compact MSOP-10 plastic package. These devices are designed to replace conventional converters in applications where system latency and board space are critical constraints.

Replacement Considerations

The LTC2402 serves as the direct dual-channel replacement within the same family. For legacy Linear Technology parts, verify compatibility with older LTC2401 variants regarding pinout and electrical specifications.