MCP33131D-10T-I/MS

Analog To Digital Converters (ADC) Overview

The MCP33131D-10T-I/MS is a single-channel, fully differential 16-bit Successive Approximation Register (SAR) Analog-to-Digital Converter manufactured by Microchip Technology. It operates at a throughput rate of 1 Msps with no output latency. The device requires a fixed 1.8V analog supply (AVDD) and supports a digital I/O voltage range of 1.7V to 5.5V (DVIO). It utilizes an external reference voltage between 2.5V and 5.1V. Key electrical characteristics include a typical Signal-to-Noise Ratio (SNR) of 91.3 dBFS, a Spurious-Free Dynamic Range (SFDR) of 103.5 dB, and Integral Nonlinearity (INL) of ±2 LSB. The component is housed in a surface-mount MSOP-10 package.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with guaranteed no missing codes and 1 Msps sampling rate
• Fully differential input operation with -VREF to +VREF full-scale range
• Ultra-low current consumption: ~0.8 µA in standby and ~1.6 mA during conversion
• Integrated self-calibration for offset, gain, and linearity errors

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging when sourcing this specific part number. Confirm that the 'I' suffix corresponds to the industrial temperature grade (-40°C to +125°C). Ensure the external reference voltage source meets the 2.5V to 5.1V requirement and that decoupling capacitors are placed on AVDD, DVIO, and VREF pins as specified in the datasheet.

Analog To Digital Converters (ADC) Selection Notes

Select the MCP33131D-10T-I/MS for applications requiring high-resolution 16-bit data conversion at speeds up to 1 Msps. This model is suitable where differential inputs are necessary to reject common-mode noise. Designers must provide a stable external reference voltage within the 2.5V to 5.1V range, as the device does not contain an internal reference. The wide DVIO range allows direct interfacing with various host microcontrollers without level shifters.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MCP331x1D-XX family of SAR ADCs, which also includes 14-bit (MCP33121D) and 12-bit (MCP33111D) variants. The '10' designation specifies the 1 Msps speed grade, while '05' denotes 500 kSPS. The 'D' indicates the differential input architecture. Other packages available in this family include TDFN-10.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include MCP33131D-05T-I/MS (500 kSPS version). For lower resolution needs, MCP33121D or MCP33111D series devices may be used if performance requirements allow.