ADS7817EB

Analog To Digital Converters (ADC) Overview

The ADS7817EB is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a differential input architecture and operates with a sampling rate of 200 kS/s. The device requires external reference voltage and functions within an analog and digital supply voltage range of 4.75 V to 5.25 V. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 71 dB, differential nonlinearity (DNL) of +/- 1 LSB, and integral nonlinearity (INL) of +/- 2 LSB. Power consumption is specified at 2.3 mW. It utilizes a 3-wire serial interface compatible with SPI standards.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 200 kS/s sampling rate
• Differential input structure for improved noise immunity
• Low power consumption of 2.3 mW
• 3-Wire/SPI compatible serial interface

Analog To Digital Converters (ADC) Applications

• Battery-powered instrumentation systems
• Portable data acquisition devices
• Industrial process control monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'EB' against the official Texas Instruments datasheet to confirm package type and temperature grade. Confirm RoHS compliance status through the manufacturer's documentation. Check current production lifecycle status as older variants may be subject to obsolescence notices.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, high-precision 12-bit conversion is required with low power constraints. Ensure the system design accommodates an external voltage reference, as the ADS7817EB does not integrate one internally. Verify that the 4.75 V to 5.25 V supply requirement aligns with the available power rails in the target application.

Analog To Digital Converters (ADC) Part Context

The ADS7817EB belongs to the ADS7817 family of micro-power sampling ADCs from Texas Instruments. This series is designed for applications requiring moderate speed and high accuracy in a compact form factor. The 'E' typically denotes an extended temperature range, while 'B' often indicates a specific tape and reel packaging configuration or variant within the product line.

Analog To Digital Converters (ADC) Replacement Considerations

Consult the Texas Instruments ADC migration guide for verified pin-compatible or functionally equivalent alternatives. Consider the ADS7816 or ADS7818 if different resolution or speed characteristics are acceptable. Verify that any substitute maintains the 12-bit SAR architecture and external reference requirement.