ADS7864YB/250

Analog To Digital Converters (ADC) Overview

The ADS7864YB/250 is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features six differential input channels and two internal SAR converters for simultaneous sampling at a rate of 500 kS/s per channel. The device operates on a single 5V supply, with both analog and digital power voltages ranging from 4.75 V to 5.25 V. It utilizes a parallel interface for data output and includes an internal reference. Key performance metrics include a signal-to-noise ratio of 71 dB, differential nonlinearity of +/- 0.4 LSB, and integral nonlinearity of +/- 1 LSB. Power dissipation is rated at 50 mW, and it functions within a temperature range of -40°C to +85°C in a 48-TQFP package.

Analog To Digital Converters (ADC) Feature Summary

• Simultaneous sampling architecture using two independent SAR converters to maintain phase integrity across six channels.
• Integrated internal voltage reference reduces external component count and simplifies board layout.
• Parallel digital interface enables high-speed data transfer compatible with standard microcontrollers and DSPs.

Analog To Digital Converters (ADC) Applications

• Motor control systems requiring precise phase information for current and voltage measurement.
• Industrial process control involving multi-channel data acquisition.
• Medical equipment utilizing isolated sensor interfaces for patient monitoring.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix /250 indicates reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ESD protection protocols are followed during handling due to moisture sensitivity classification. Cross-reference distributor part numbers such as 296-44979-2-ND for accurate sourcing. Validate lead times directly with authorized suppliers as production schedules vary.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of multiple differential signals is required without external multiplexer latency. The 12-bit resolution and 500 kS/s speed suit applications needing moderate precision at high throughput. Consider the TQFP-48 package constraints for PCB space. Compare against ADS7864Y/2K if cut-tape quantities are preferred over reel packaging. Evaluate power consumption requirements against the 50 mW dissipation rating.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS7864 series of high-speed, low-power ADCs from Texas Instruments. It shares architectural similarities with the ADS7862 but offers increased channel density. The part is designed for applications demanding synchronized multi-channel conversion. It complements other TI data converters like the ADS8661 for different interface or channel requirements.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7864Y/2K serves as a packaging variant offering cut-tape options instead of reel. No direct pin-compatible functional substitutes are explicitly confirmed in public sources for identical specifications. Verify compatibility with existing circuit designs before substituting with family members like ADS7862, noting channel differences.