ADS1283BIRHFR

Overview

The ADS1283BIRHFR is a high-resolution analog-to-digital converter manufactured by Texas Instruments. It features a dual-channel sigma-delta architecture with a resolution of 31 bits and a maximum sampling rate of 4 kSPS. The device utilizes differential inputs and communicates via an SPI interface. It operates with a 5 V analog supply and digital supplies ranging from 1.8 V to 3.3 V. Key performance metrics include a signal-to-noise ratio of 130 dB and a spurious-free dynamic range of 123 dB. The component is housed in a VQFN-24 package, supports programmable gain amplifier functionality, and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a dual-channel delta-sigma modulator with a 31-bit resolution for high-fidelity data acquisition.
• Includes an integrated programmable gain amplifier (PGA) to accommodate varying input signal amplitudes.
• Features a flexible digital filter system compatible with external synchronization inputs for precise timing alignment.

Applications

• Ultra-high-resolution seismic data acquisition systems
• Precision geophysical exploration equipment
• High-end medical imaging instrumentation

Procurement Notes

Verify the specific suffix 'TG4' or absence thereof against the manufacturer's current datasheet to ensure compliance with RoHS directives and material declarations. Confirm that the VQFN-24 package matches the intended PCB footprint and thermal requirements. Validate the operating voltage levels against the system design specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring simultaneous multi-channel conversion with ultra-high resolution. Ensure the host microcontroller supports the required SPI communication protocol and voltage levels. Consider the power dissipation characteristics relative to the available thermal management capabilities within the enclosure design.

Part Context

This part belongs to the ADS1283 family of ultra-high-resolution ADCs designed for demanding measurement applications. It shares architectural similarities with other devices in the series but is distinguished by its specific channel count and pin configuration. The component serves as a critical interface between analog sensor signals and digital processing units in precision instrumentation environments.

Replacement Considerations

Consult official substitution guides for equivalent models within the ADS128x family. Verify pin compatibility and electrical parameter alignment before considering alternative sources.

FAQ

What is the maximum sampling rate supported by the ADS1283BIRHFR?

The device supports a maximum sampling rate of 4 kSPS.

Does the ADS1283BIRHFR support external clock synchronization?

Yes, the device includes a SYNC input that accepts a clock signal to align conversions continuously from an external source.

What type of input signals does the ADS1283BIRHFR accept?

The ADC accepts differential input signals for both of its channels.