ADS7812U-BB

Analog To Digital Converters (ADC) Overview

The ADS7812U-BB is a low-power, serial 12-bit sampling analog-to-digital converter (ADC) manufactured by Burr-Brown. It features a successive approximation register (SAR) architecture with a single-ended input and SPI-compatible serial interface. The device operates on a single 5V supply, consuming approximately 35 mW of power. Key electrical specifications include a sampling rate of 40 kS/s, a signal-to-noise ratio (SNR) of 74 dB, and differential/integral nonlinearity of +/- 0.5 LSB. It includes an internal reference voltage and is housed in a 16-pin SOIC package, suitable for battery-operated systems.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 40 kS/s sampling rate
• Low power consumption of 35 mW at 5V
• Internal reference voltage included
• SPI-compatible serial interface

Analog To Digital Converters (ADC) Applications

• Battery operated systems
• Remote data acquisition
• Isolated data acquisition

Analog To Digital Converters (ADC) Part Context

The ADS7812 belongs to the ADS7812 series of low-power ADCs from Burr-Brown (now Texas Instruments). The 'U' suffix indicates a plastic SOIC-16 package, while '-BB' denotes the original Burr-Brown manufacturer origin before the TI merger. This component is part of a family that includes variants like the ADS7812P and ADS7813.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the ADS7812P (PDIP package) or other ADS7812 variants with different packaging options. Cross-manufacturer equivalents should match the 12-bit resolution, 40 kS/s speed, and 5V single-supply operation.