ADS7851IRTET

Analog To Digital Converters (ADC) Overview

The ADS7851IRTET is a dual-channel, 14-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a maximum sampling rate of 1.5 MSPS and supports both differential and single-ended input configurations. The device utilizes an SPI digital interface for data communication. It requires an analog supply voltage ranging from 4.5 V to 5.5 V and a digital supply voltage between 1.65 V and 5.25 V. The component is housed in a 16-WQFN package with dimensions of 3x3 mm. It features an internal reference and supports synchronous sampling across its two channels.

Analog To Digital Converters (ADC) Feature Summary

• Provides simultaneous sampling capabilities for precise phase relationship measurement between two input channels.
• Integrates a high-speed SAR architecture to achieve 14-bit resolution at sampling rates up to 1.5 MSPS.
• Supports flexible input configurations including fully differential and pseudo-differential modes.

Analog To Digital Converters (ADC) Applications

• Motor control systems requiring synchronized current and voltage sensing.
• Industrial process control applications involving multi-channel signal acquisition.
• Medical equipment utilizing precision data conversion for diagnostic signals.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'TET' indicates tape-and-reel packaging when sourcing components. Confirm that the analog supply voltage range aligns with system power rails, as the device specifies 4.5 V to 5.5 V. Ensure the digital interface voltage compatibility matches the host controller logic levels within the 1.65 V to 5.25 V range. Check moisture sensitivity level ratings for proper storage and reflow soldering profiles.

Analog To Digital Converters (ADC) Selection Notes

Select this component when dual-channel synchronization is required for high-precision applications. Compare against the ADS7853 if a lower 1 MSPS sampling rate is sufficient, or the ADS7850 for 750 kSPS requirements. Verify that the 14-bit resolution meets the dynamic range needs of the target application. Consider the WQFN-16 package size constraints during PCB layout planning.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS785x family of dual-channel SAR ADCs from Texas Instruments. It shares architectural similarities with the ADS7850 and ADS7853 but offers a higher sampling rate of 1.5 MSPS compared to the 750 kSPS and 1 MSPS variants respectively. All members of this series utilize the same 16-WQFN package and SPI interface standard.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7851IRTER serves as the reel-packaged equivalent of the ADS7851IRTET. Other family members like the ADS7850 and ADS7853 offer similar functionality but with different maximum sampling rates.