MCP33121-05T-E/MN

Analog To Digital Converters (ADC) Overview

The MCP33121-05T-E/MN is a single-channel, 14-bit successive approximation register (SAR) analog-to-digital converter with a throughput rate of 500 kSPS. It features pseudo-differential input operation with a full-scale range of 0V to VREF. The device operates with an analog supply voltage (AVDD) of 1.8V and a digital I/O interface voltage (DVIO) ranging from 1.7V to 5.5V. Typical current consumption is 1.4 mA during conversion and approximately 0.8 µA in standby mode. It includes internal self-calibration for offset, gain, and linearity errors.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes and 500 kSPS sampling rate
• Wide digital I/O voltage range (1.7V to 5.5V) for direct host interfacing
• Ultra-low current consumption (~0.8 µA in standby)
• Internal self-calibration for offset, gain, and linearity errors

Analog To Digital Converters (ADC) Applications

• High-Precision Data Acquisition
• Medical Instruments
• Electric Vehicle Battery Management Systems
• Motor Control Applications
• Switch-Mode Power Supply Applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix 'MN' corresponds to the TDFN-10 package as specified in the datasheet. Confirm that the '-05' designation indicates the 500 kSPS throughput variant. Ensure the '-E' suffix denotes the extended temperature grade (-40°C to +125°C). Check for AEC-Q100 qualification requirements if automotive applications are intended.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 14-bit resolution and 500 kSPS speed are required. It is suitable for systems needing low power consumption during idle states. The wide DVIO range allows compatibility with various logic levels without external level shifters. Consider the TDFN-10 package constraints for thermal management and PCB layout.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MCP331x1 family of SAR ADCs, which also includes 12-bit (MCP33111) and 16-bit (MCP33131) variants. The family shares similar architectural features, including SPI-compatible interfaces and self-calibration capabilities. The '-05' suffix distinguishes it from the '-10' variant, which offers a higher 1 Msps throughput rate.

Analog To Digital Converters (ADC) Replacement Considerations

Compatible substitutes within the same family include MCP33111-05 (12-bit) and MCP33131-05 (16-bit), provided resolution differences are acceptable. Other models in the series share pinouts and functional similarities but differ in resolution and speed specifications.