MCP3201-CI/SN

Analog To Digital Converters (ADC) Overview

The MCP3201-CI/SN is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Microchip Technology. It features a single pseudo-differential input, an on-chip sample and hold circuit, and communicates via an SPI-compatible serial interface. The device operates on a single supply voltage ranging from 2.7V to 5.5V. At VDD = 5V, the maximum sampling rate is 100 ksps, while at VDD = 2.7V, it is limited to 50 ksps. Key electrical specifications include ±1 LSB maximum differential nonlinearity (DNL) and ±2 LSB maximum integral nonlinearity (INL). The component is housed in an 8-pin SOIC package and supports an industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with ±1 LSB max DNL and ±2 LSB max INL
• Single pseudo-differential analog input with onboard sample and hold
• SPI serial interface compatible with modes 0,0 and 1,1
• Low-power CMOS technology with 500 nA typical standby current

Analog To Digital Converters (ADC) Applications

• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the 8-pin SOIC package as specified in the datasheet. Confirm the '-CI' suffix indicates the industrial temperature grade (-40°C to +85°C) and ±2 LSB INL specification. Ensure compatibility with the required SPI clock rates and voltage levels before integration.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring a single-channel, 12-bit ADC with low power consumption. The 100 ksps throughput at 5V makes it suitable for moderate-speed data acquisition. Consider source impedance limitations; high-impedance signals may require buffering to maintain linearity specifications due to the internal sampling capacitor requirements.

Analog To Digital Converters (ADC) Part Context

The MCP3201 is part of the MCP320x family of 12-bit A/D converters from Microchip Technology. This specific variant, MCP3201-CI/SN, denotes the single-channel version with industrial temperature rating and SOIC packaging. Other family members include multi-channel variants like the MCP3202 and MCP3204, which share similar electrical characteristics but differ in pin count and channel configuration.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-for-pin replacements within the same package and specification grade should be verified against the official Microchip cross-reference list. Ensure any substitute maintains the 12-bit resolution, SPI interface compatibility, and the specific INL/DNL tolerances defined for the -CI grade.