ADS7861IBRHBT

Analog To Digital Converters (ADC) Overview

The ADS7861IBRHBT is a dual-channel, 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features two independent ADC cores capable of simultaneous sampling at a maximum data rate of 500 kSPS per channel. The device operates with an analog supply voltage range of 2.7 V to 5.5 V and supports digital I/O levels compatible with 1.65 V to 5.5 V logic. It utilizes a serial interface for data output and includes an internal reference option. The component is housed in a 24-pin HTQFP package designed for industrial temperature applications.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture enabling true simultaneous sampling of two input signals
• High-speed 12-bit resolution with 500 kSPS throughput per channel
• Flexible power supply design supporting wide analog and low-voltage digital domains
• Integrated sample-and-hold circuits with single-ratio S/H to ADC configuration

Analog To Digital Converters (ADC) Applications

• Multi-axis motion control systems requiring synchronized position feedback
• Industrial process monitoring with simultaneous voltage and current acquisition
• Data acquisition modules for environmental sensing networks
• Medical instrumentation requiring precise multi-channel signal capture

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix RHBT indicates the industrial temperature grade and tape-and-reel packaging format upon ordering. Confirm that the HTQFP-24 footprint matches the target PCB layout constraints. Ensure supply chain sources provide original manufacturer documentation to validate authenticity and revision status before integration into production designs.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of two channels is critical, as opposed to multiplexed alternatives like the ADS7863 which share a single ADC core. Consider the 12-bit resolution and 500 kSPS speed against system bandwidth requirements. Evaluate the need for separate analog and digital supplies if noise isolation is required in the application environment.

Analog To Digital Converters (ADC) Part Context

The ADS7861 belongs to Texas Instruments' family of high-speed SAR ADCs. It serves as a dual-channel counterpart to single-channel devices within the same performance tier. The IB designation typically denotes the industrial temperature range variant, distinguishing it from commercial or automotive grades in the broader product line.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7861E offers a similar dual-channel specification but may differ in package type or temperature rating. For higher throughput needs, the ADS7863 provides increased sampling rates but uses a multiplexed architecture rather than simultaneous sampling. Verify pin compatibility and software register configurations when substituting.