ADS7824UB

Analog To Digital Converters (ADC) Overview

The ADS7824UB is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features four single-ended input channels and supports sampling rates up to 40 kSPS. The device operates on a single 5V supply, with both analog and digital power rails ranging from 4.75 V to 5.25 V. It utilizes a parallel or SPI-compatible serial interface for data output. Key performance metrics include a signal-to-noise ratio of 73 dB and integral/differential nonlinearity errors of ±0.5 LSB. The component is housed in a 28-pin SOIC package and functions within an operating temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 4 single-ended input channels
• Sampling rate up to 40 kSPS with low power consumption of 50 mW
• High linearity: INL and DNL limited to ±0.5 LSB
• Flexible interface supporting parallel and synchronous serial modes

Analog To Digital Converters (ADC) Applications

• Portable instrumentation requiring high accuracy
• Industrial process control systems
• Battery-powered measurement devices

Analog To Digital Converters (ADC) Selection Notes

Select the ADS7824UB when four-channel acquisition at 12-bit resolution is required with minimal power draw. Verify that the system interface supports either parallel data bus or synchronous serial communication. Ensure the available supply voltage remains within the 4.75 V to 5.25 V range to maintain specified SNR and linearity performance.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADS7824 family of CMOS sampling ADCs. While other variants in the series may offer different channel counts or packaging options, the ADS7824UB specifically denotes the 4-channel version in a 28-lead SOIC package. It serves as a mid-performance solution bridging lower-speed SAR converters and higher-resolution delta-sigma architectures.