ADC121C021CIMKX/NOPB

Analog To Digital Converters (ADC) Overview

The ADC121C021CIMKX/NOPB is a low-power, monolithic 12-bit analog-to-digital converter manufactured by Texas Instruments. It operates from a single +2.7V to +5.5V supply and utilizes a successive approximation register architecture with an internal track-and-hold circuit. The device features an I2C-compatible serial interface supporting standard (100kHz), fast (400kHz), and high-speed (3.4MHz) modes. Key specifications include a maximum throughput rate of 188.9 ksps, typical conversion time of 1µs, and integral non-linearity of ±1 LSB. It is housed in a compact 6-lead SOT package.

Analog To Digital Converters (ADC) Feature Summary

• I2C-Compatible Interface: Supports Standard, Fast, and High-Speed communication modes for flexible system integration.
• Out-of-Range Alert Function: Provides an interrupt signal when the analog input exceeds programmable upper or lower limit thresholds.
• Automatic Power-Down Mode: Reduces power consumption significantly during idle periods to extend battery life in portable applications.

Analog To Digital Converters (ADC) Applications

• System Monitoring
• Peak Detection
• Portable Instruments
• Medical Instruments
• Test Equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and temperature rating. Confirm that the component meets RoHS compliance requirements for your target market. Check for any recent revisions to the datasheet that may affect pin compatibility or electrical characteristics before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component for designs requiring a small footprint and low power consumption. Ensure the host microcontroller supports the required I2C clock speeds if utilizing the high-speed mode. Verify that the supply voltage range matches the system's available power rails. Consider the alert function requirements when designing the interrupt handling logic.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADC121C021 family, which includes pin-compatible variants such as the ADC121C027 and automotive-grade ADC121C021Q. These devices share similar electrical characteristics but differ in address selection options and qualification standards. The family also includes 8-bit and 10-bit resolution counterparts like the ADC081C021 and ADC101C021.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include the ADC121C027, which offers different address selection capabilities. For automotive applications, the ADC121C021Q is the qualified alternative. Lower resolution options such as the ADC101C021 and ADC081C021 are also fully pin-compatible.