ADC12138CIMSAX

Analog To Digital Converters (ADC) Overview

The ADC12138CIMSAX is a self-calibrating, 12-bit plus sign successive approximation analog-to-digital converter (ADC) featuring an eight-channel configurable input multiplexer. It supports serial I/O compatible with MICROWIRE, SPI, and QSPI protocols. The device operates on a single +3.0V to +5.5V supply and accommodates a 0V to 5V analog input range. Key electrical specifications include a maximum conversion time of 8.8 μs, a throughput rate of 14 μs, and an integral linearity error of ±2 LSB after self-calibration. It includes programmable acquisition time and variable digital output word length.

Analog To Digital Converters (ADC) Feature Summary

• Self-calibrating architecture adjusts linearity, zero, and full-scale errors to typically less than ±1 LSB each.
• Eight-channel differential multiplexer with programmable acquisition time ranging from 6 to 34 clock cycles.
• Serial interface compatible with MICROWIRE, SPI, and QSPI standards.
• Variable digital output word length and format for flexible data handling.

Analog To Digital Converters (ADC) Applications

• Pen-based computers
• Digitizers
• Global positioning systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific package configuration for the IMSA suffix against current Texas Instruments availability lists, as certain product-package combinations may be obsolete. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an eight-channel multiplexed input is required alongside high accuracy in a single-supply environment. Ensure the system clock frequency does not exceed 5 MHz and that the reference voltage source impedance remains below 25 Ω to maintain specified linearity performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADC12130 family, which also includes the two-channel ADC12130 and four-channel ADC12132 variants. All members share identical core ADC performance characteristics, differing primarily in the number of available multiplexer channels.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the ADC12130CIWMX/NOPB and ADC12132CIMTX/NOPB. These alternatives offer identical electrical specifications but provide two and four input channels, respectively, instead of eight.