ADS7817UB-BB

Analog To Digital Converters (ADC) Overview

The ADS7817UB-BB is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Burr-Brown. It features a fully differential analog input and operates on a single 5V supply, consuming only 2.3 mW of power at a sampling rate of 200 kS/s. The device utilizes an external reference voltage ranging from 100 mV to 2.5 V. It communicates via a 3-wire serial interface compatible with standard SPI protocols. Packaged in an SOIC-8 surface-mount format, it supports operation within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with differential input architecture
• Micro-power consumption of 2.3 mW at 200 kS/s
• External reference voltage support (100 mV to 2.5 V)
• 3-wire serial interface compatible with SPI

Analog To Digital Converters (ADC) Applications

• Battery-operated systems requiring low power
• Remote data acquisition networks
• Isolated data acquisition modules
• AC motor control SAR circuits

Analog To Digital Converters (ADC) Part Context

The ADS7817 series was originally developed by Burr-Brown Corporation before its acquisition by Texas Instruments. The 'BB' suffix in the part number indicates the original Burr-Brown manufacturing origin. This component belongs to a family of high-speed, micro-power 12-bit ADCs designed for cost-sensitive applications where power efficiency is prioritized alongside moderate speed.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7816 offers similar specifications but may differ in specific speed or power trade-offs depending on the clock configuration. The ADS7822 is another variant within the same family. Verification of pin compatibility and electrical parameters against the specific datasheet revision is required when substituting.