ADS8328IRSAT

Analog To Digital Converters (ADC) Overview

The ADS8328IRSAT is a low-power, 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a dual unipolar input architecture with an integrated 2-to-1 multiplexer and programmable TAG bit output. The device supports a throughput rate of 500 kSPS and operates with an analog supply voltage range of 2.7 V to 5.5 V. It utilizes a serial interface compatible with SPI and DSP standards, supporting SCLK frequencies up to 50 MHz. The component is housed in a 4x4 QFN-16 package and is specified for operation over the industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 500-kHz sampling rate
• Dual unipolar inputs (+IN0, +IN1) with 2-to-1 MUX
• Serial interface supporting SCLK up to 50 MHz
• Low power consumption: 10.6 mW at 2.7 V analog supply

Analog To Digital Converters (ADC) Applications

• Transducer Interface
• Medical Instruments
• Magnetometers
• Industrial Process Control
• Data Acquisition Systems

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix 'RSA' corresponds to the 4x4 QFN-16 package and tape-and-reel packaging configuration. Confirm the 'I' designation indicates the industrial temperature grade (-40°C to +85°C). Ensure the specific revision level matches the design requirements, as datasheet revisions may impact parameter specifications.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8328 variant specifically when two single-ended unipolar channels are required, distinguishing it from the single-channel ADS8327. Verify that the input signal range aligns with the external reference voltage (VREF), which must be between 0.3 V and +VA. Ensure the system logic levels match the +VBD supply voltage, which ranges from 1.65 V to 1.5 times the analog supply voltage.

Analog To Digital Converters (ADC) Part Context

The ADS8328 belongs to the ADS832x family of low-power, high-speed SAR converters. It shares the same core architecture as the ADS8327 but adds a built-in 2-to-1 input multiplexer. This family is designed for applications requiring moderate speed and high resolution with minimal power consumption, offering software reset and multiple power-down modes for energy efficiency.

Analog To Digital Converters (ADC) Replacement Considerations

ADS8327IRSAT serves as a direct functional substitute if only a single unipolar input channel is needed. For systems requiring higher sampling rates, the ADS8329 or ADS8330 families provide 1-MHz performance with similar pinouts and architectures.