ADC12132CIMSA

Analog To Digital Converters (ADC) Overview

The ADC12132CIMSA is a 12-bit plus sign successive approximation analog-to-digital converter featuring an integrated two-channel multiplexer and sample-and-hold circuit. It operates on a single +3.0V to +5.5V supply with power consumption of 15 mW at 3.3V and 33 mW at 5V. The device supports serial I/O compatible with MICROWIRE, SPI, and QSPI protocols. Key electrical specifications include a maximum conversion time of 8.8 μs, a throughput time of 14 μs, and an integral linearity error of ±2 LSB after self-calibration. It functions within an operating temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit plus sign resolution with self-calibrating architecture for improved linearity
• Integrated two-channel analog multiplexer with programmable acquisition time
• Serial interface compatibility with MICROWIRE, SPI, and QSPI standards
• Single-supply operation from 3.0V to 5.5V with low power down modes

Analog To Digital Converters (ADC) Applications

• Pen-based computers
• Digitizers
• Global positioning systems

Analog To Digital Converters (ADC) Procurement Notes

Verify component availability status directly with Texas Instruments or authorized distributors, as specific product/package combinations may be obsolete. Confirm the thermal resistance value of 134°C/W for the CIMSA package variant during integration planning. Ensure supply voltage requirements match the 3.0V to 5.5V operating range specified in the datasheet.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC12132CIMSA when a two-channel input multiplexer is required alongside 12-bit precision. Compare against the ADC12130 (single channel) and ADC12138 (eight channels) based on input count needs. Consider the 134°C/W thermal resistance for PCB layout if operating near the upper temperature limit. Verify that the serial clock frequency does not exceed 5 MHz.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC12130/ADC12132/ADC12138 family of self-calibrating 12-bit plus sign serial I/O A/D converters. The CIMSA suffix indicates a specific surface-mount package configuration. The family shares core architectural features including the SAR conversion method and configurable digital output word length, differing primarily in the number of available analog input channels.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the ADC12130CIMSA for single-channel applications and the ADC12138CIMSA for eight-channel requirements. These parts share identical pinouts and electrical characteristics except for channel count. Verify package compatibility before substitution.