ADS7861IRHBT

Analog To Digital Converters (ADC) Overview

The ADS7861IRHBT is a dual-channel, 12-bit Successive Approximation Register (SAR) analog-to-digital converter manufactured by Texas Instruments. It supports simultaneous sampling at a rate of 500 kSPS with a serial interface. The device operates on a single 5V analog supply and accepts pseudo-differential or single-ended inputs within a 0V to VREF range. Key performance metrics include a signal-to-noise ratio of 70 dB and total harmonic distortion of -80 dB. It functions within an industrial temperature range of -40°C to +85°C and is housed in a 20-pin HTSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture enabling simultaneous sampling of two independent analog inputs
• 12-bit resolution with 500 kSPS throughput and low power consumption of 30 mW
• Flexible input configuration supporting both pseudo-differential and single-ended modes
• Integrated internal reference voltage option with external reference capability

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel data acquisition
• Portable instrumentation and battery-powered measurement devices
• Data acquisition modules for automated test equipment
• Medical instrumentation requiring high accuracy and low noise

Analog To Digital Converters (ADC) Procurement Notes

Verify the suffix 'IRHB' confirms the -40°C to +85°C industrial temperature grade and HTSSOP-20 packaging. Confirm 'T' indicates tape-and-reel shipping format. Check for RoHS compliance status as per manufacturer specifications. Ensure the source document matches the exact part number to avoid confusion with non-simultaneous variants like the ADS7864.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous conversion of two channels is required without interleaving errors. Compare against ADS7864 if only one channel is needed, or ADS7863/ADS7865 for higher speed or additional channel counts. Verify that the 500 kSPS rate meets system bandwidth requirements and that the 12-bit resolution aligns with application precision needs.

Analog To Digital Converters (ADC) Part Context

The ADS7861 belongs to the ADS786x family of dual-channel SAR ADCs from Texas Instruments. This series is designed for applications needing synchronized sampling across multiple channels. The IRHBT variant specifically denotes the industrial temperature range and specific packaging configuration within the broader ADS7861 product line.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7861E: Non-industrial temperature grade version. ADS7861EVM: Evaluation module for testing. ADS7864: Single-channel equivalent with similar performance characteristics.