ADC101S101CISDX/NOPB

Analog To Digital Converters (ADC) Overview

The ADC101S101CISDX/NOPB is a single-channel, 10-bit successive-approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a single power supply ranging from +2.7V to +5.25V and supports sample rates between 500 ksps and 1 Msps. The device features an internal track-and-hold circuit and outputs straight binary data via a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards. Key electrical specifications include a typical signal-to-noise ratio of 62 dB, integral non-linearity of ±0.2 LSB, and differential non-linearity of +0.3/-0.2 LSB. Normal mode power consumption is 2.0 mW at +3V and 10 mW at +5V, while shutdown mode reduces consumption to as low as 2.5 µW.

Analog To Digital Converters (ADC) Feature Summary

• Fully specified performance over a variable sample rate range of 500 ksps to 1 Msps.
• Low-power CMOS architecture with normal mode consumption of 2.0 mW (+3V) or 10 mW (+5V).
• Single-supply operation from +2.7V to +5.25V with digital inputs tolerant up to +5.25V regardless of VA.
• 6-lead WSON package (2.2x2.5 mm) with exposed pad for thermal grounding.

Analog To Digital Converters (ADC) Applications

• Portable battery-powered systems requiring extended operational life.
• Remote data acquisition and monitoring networks.
• Instrumentation and industrial control systems.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix CISDX against the manufacturer's current product folder to confirm package type and tape/reel configuration. Ensure that the design accounts for the exposed pad connection to ground for optimal thermal performance in the WSON package. Confirm compatibility with system voltage levels, noting that digital inputs are limited to +5.25V relative to GND independent of the analog supply voltage.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, 10-bit resolution is required at speeds up to 1 Msps with minimal power consumption. Compare against pin-compatible alternatives such as the ADC101S021 (50-200 ksps) or ADC101S051 (200-500 ksps) if lower throughput suffices for the application. Ensure the analog input source impedance is low enough to charge the internal sampling capacitor within the specified acquisition time of 350 ns maximum.

Analog To Digital Converters (ADC) Part Context

The ADC101S101 belongs to the S101 family of single-channel SAR ADCs from Texas Instruments. This family includes variants with different resolutions (8-bit, 10-bit, 12-bit) and speed grades (S021, S051, S101). All devices in this family share pin and functional compatibility, allowing for design flexibility across different precision and speed requirements without changing the PCB layout.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible substitutes include the ADC101S021, ADC101S051, ADC081S101, ADC121S101, ADC081S021, ADC081S051, ADC121S021, and ADC121S051. These alternatives offer different resolutions or specified sample rate ranges but maintain identical pinouts and functionality.