ADC121S021CISDX/NOPB

Analog To Digital Converters (ADC) Overview

The ADC121S021CISDX/NOPB is a single-channel, 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It supports sampling rates from 50 kSPS to 200 kSPS and operates on a single supply voltage ranging from 2.7V to 5.25V for both analog and digital domains. The device features a serial interface compatible with standard SPI and DSP protocols. It is housed in a compact 6-WSON package measuring 2.2mm x 2.5mm with an exposed pad, designed for surface-mount installation. The component functions as a sample-and-hold ADC with a 1:1 S/H to ADC ratio.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-speed successive approximation register architecture for efficient data conversion
• Supports flexible serial communication through standard SPI and DSP interface compatibility
• Operates within a wide single-supply voltage range suitable for various power environments

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring low power consumption
• Battery-powered measurement devices
• Industrial process control signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and RoHS3 status. Confirm the specific tape and reel packaging configuration required for automated assembly processes. Cross-reference the manufacturer's latest datasheet revision to validate electrical characteristics against current design specifications before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-ended input channel with 12-bit resolution is required at sampling rates up to 200 kSPS. Ensure the system power budget accommodates the specified 2.7V to 5.25V operating range. Verify that the available PCB space can accommodate the 6-WSON package dimensions and that the host microcontroller supports the necessary serial clock speeds for the chosen data rate.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADCx21S021 family of single-channel SAR ADCs from Texas Instruments. The family includes variants with different resolutions such as the 8-bit ADC081S021 and the 10-bit ADC101S021. These components share similar interface protocols and pinouts, facilitating design scalability across applications requiring varying precision levels while maintaining consistent software drivers and hardware layouts.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC101S021CISDX/NOPB serves as a parameter-equivalent alternative with reduced 10-bit resolution. Other family members like the ADC081S021 offer lower resolution options. Verify pin compatibility and software register configurations when substituting between different resolution variants within the same series.