ADS7862Y/250

Analog To Digital Converters (ADC) Overview

The ADS7862Y/250 is a dual-channel, 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features simultaneous sampling capabilities with a maximum sampling rate of 500 kS/s per channel. The device operates on a single 5V supply, accepting differential inputs through an internal multiplexer and sample-and-hold circuit. Key electrical specifications include a signal-to-noise ratio of 71 dB, a total power dissipation of 40 mW, and a digital interface type of parallel. It is housed in a 32-lead TQFP package and supports both internal and external reference configurations.

Analog To Digital Converters (ADC) Feature Summary

• Simultaneous sampling architecture ensures precise phase alignment between channels for high-fidelity data acquisition.
• Integrated internal voltage reference reduces component count and simplifies board layout requirements.
• Parallel output interface enables direct connection to microcontrollers and DSPs without serial conversion overhead.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel sensor monitoring
• Medical instrumentation such as ECG and EEG signal acquisition
• Data acquisition modules for test and measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm packaging details. The '/250' designation typically indicates tape and reel packaging, but official documentation should be consulted to ensure compatibility with automated assembly processes and moisture sensitivity levels.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of two differential signals is required at moderate speeds. Compare performance metrics such as SNR and linearity against other SAR ADCs in the family. Ensure the parallel interface timing constraints align with the host processor's capabilities before finalizing the design.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7862 series, which includes variants like the ADS7862Y/2K and ADS7862YB/250. These devices share core architectural features but differ primarily in packaging options and shipping quantities. The Y/250 variant specifically utilizes the TQFP-32 package format suitable for surface-mount applications.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include ADS7862Y/2K and ADS7862YB/250. Verify pinout compatibility and electrical specifications before substitution. Cross-referencing with similar TI parts like the ADS7863 or ADS7864 may require interface adjustments due to differing channel counts or architectures.