ADS7812UB

Analog To Digital Converters (ADC) Overview

The ADS7812UB is a low-power, serial-output, 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Burr-Brown. It features a single-ended input architecture and operates with an analog supply voltage range of 4.75 V to 5.25 V. The device supports sampling rates up to 40 kS/s and consumes only 35 mW of power. It integrates an internal reference voltage option and utilizes a standard SPI-compatible serial interface for data communication. The component is housed in a 16-lead SOIC package and is rated for operation across a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 40 kS/s sampling rate
• Low power consumption of 35 mW
• Internal or external reference voltage capability
• SPI-compatible serial interface

Analog To Digital Converters (ADC) Applications

• Battery-operated systems requiring low power
• Remote data acquisition nodes
• Industrial process control monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the manufacturer designation as Burr-Brown or Texas Instruments, as TI acquired Burr-Brown's product lines. Confirm the specific suffix 'UB' corresponds to the SOIC-16 package variant. Ensure compliance requirements such as RoHS status are checked against the specific production lot documentation provided by the supplier.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, 12-bit ADC with low power consumption is required. It is suitable for applications where serial connectivity simplifies PCB routing compared to parallel interfaces. Consider the 40 kS/s speed limit and single-ended input constraint against system bandwidth and signal topology requirements.

Analog To Digital Converters (ADC) Part Context

The ADS7812 belongs to the ADS781x family of micro-power SAR ADCs from Burr-Brown. This family includes variants like the ADS7813 (16-bit) and ADS7816 (higher speed). The ADS7812 specifically targets cost-sensitive, battery-powered applications needing moderate resolution and speed.

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling rate of the ADS7812UB?

The maximum sampling rate is 40 kS/s.

Does the ADS7812UB have an internal reference?

Yes, it offers the option to use either an internal or external reference voltage.

What is the power dissipation of the ADS7812UB?

The typical power dissipation is 35 mW.