ADS7817EC

Analog To Digital Converters (ADC) Overview

The ADS7817EC is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a fully differential analog input and operates on a single 5V supply, with both analog and digital power rails ranging from 4.75 V to 5.25 V. The device supports a sampling rate of 200 kS/s and utilizes a 3-wire serial interface compatible with SPI. 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 +/- 1 LSB. It consumes 2.3 mW of power and functions within an operating temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 200 kS/s sampling rate
• Fully differential input architecture
• Low power consumption of 2.3 mW at 5V
• 3-wire serial interface compatible with standard SPI

Analog To Digital Converters (ADC) Applications

• Battery operated systems
• Remote data acquisition
• Isolated data acquisition
• AC motor control SAR control

Analog To Digital Converters (ADC) Part Context

The ADS7817EC belongs to the ADS7817 series of micro-power sampling ADCs. It is available in a VSSOP-8 package, distinguishing it from other variants like the SOIC-8 packaged ADS7817UB. The component is designed for applications requiring direct connection to transducers in space-constrained environments.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7817B and ADS7817C are listed as similar products within the same family. Designers should verify pinout compatibility and specific accuracy grades when substituting these variants.