ADC081S021CISDX/NOPB

Analog To Digital Converters (ADC) Overview

The ADC081S021CISDX/NOPB is a single-channel, 8-bit analog-to-digital converter manufactured by Texas Instruments. It features a successive-approximation register architecture with an internal track-and-hold circuit. The device operates on a single power supply ranging from 2.7V to 5.25V and supports sample rates between 50 ksps and 200 ksps. It utilizes a high-speed serial interface compatible with SPI, QSPI, Microwire, and DSP standards. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 49.6 dB, differential non-linearity (DNL) of ±0.03 LSB, and integral non-linearity (INL) of ±0.03 LSB. Power consumption is 1.3 mW at 3.6V and 7.7 mW at 5.25V.

Analog To Digital Converters (ADC) Feature Summary

• Single-channel CMOS 8-bit A/D converter with successive-approximation architecture
• Fully specified over a sample rate range of 50 ksps to 200 ksps
• Variable power management with shutdown mode reducing power to 2.6 µW
• Compatible with SPI, QSPI, Microwire, and common DSP serial interfaces

Analog To Digital Converters (ADC) Applications

• Portable systems requiring low power consumption
• Remote data acquisition networks
• Instrumentation and control systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the package suffix CISDX corresponds to the 6-lead WSON configuration with exposed pad as indicated in the datasheet pin descriptions. Confirm that the NOPB suffix denotes lead-free and RoHS-compliant construction. Ensure the operating temperature range of -40°C to +85°C meets system requirements.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution is sufficient for the application's dynamic range requirements. Consider the 50-200 ksps throughput limit; higher speeds require variants like the ADC081S051 or ADC081S101. Verify that the digital input voltage tolerance of up to 5.25V matches the host controller logic levels regardless of the analog supply voltage.

Analog To Digital Converters (ADC) Part Context

The ADC081S021 belongs to the ADC081S family of single-channel converters. Pin-compatible alternatives exist within the same series offering different resolutions and speeds, such as the 10-bit ADC081S101 and 12-bit ADC081S121. These devices share identical pinouts and functional compatibility, allowing for design flexibility across varying performance needs.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible substitutes include the ADC081S051 (200-500 ksps), ADC081S101 (500 ksps-1 Msps), ADC101S021 (10-bit), and ADC121S021 (12-bit). All listed alternatives are fully pin and function compatible with the ADC081S021.