ADS1288IRHBT

Analog To Digital Converters (ADC) Overview

The Texas Instruments ADS1288IRHBT is a 32-bit, low-power delta-sigma analog-to-digital converter (ADC) designed for seismic applications. It features two differential input channels with an integrated programmable gain amplifier (PGA) offering gains from 1 to 64, and a unity-gain buffer mode. The device supports data rates ranging from 125 SPS to 2000 SPS and includes a flexible digital filter system comprising sinc, FIR, and IIR filters. Power consumption is typically 5 mW in PGA operation and 3 mW in buffer operation at 3.3 V. It operates on analog supplies of 5 V, 3.3 V, or ±2.5 V and is housed in a 32-pin, 5 mm × 5 mm VQFN package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated dual-channel multiplexer allows direct connection to geophones and transformer-coupled hydrophones without external amplification.
• Flexible digital filtering architecture supports selectable sinc, FIR, and IIR configurations with linear or minimum phase responses.
• Built-in sample rate converter compensates for clock frequency errors with high precision.
• Includes offset and gain calibration capabilities to maintain measurement accuracy.

Analog To Digital Converters (ADC) Applications

• Energy exploration
• Passive seismic monitoring
• Earth sciences and geology
• Precision instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IRHBT corresponds to the 32-pin VQFN package and industrial temperature range (-40°C to +85°C). Confirm that the ordering information matches the manufacturer's current production status and package dimensions. Ensure compatibility with required supply voltages and interface timing specifications before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-resolution seismic data acquisition requires low power consumption. The integrated PGA eliminates the need for external amplifiers for geophone signals. Consider the available data rates and filter configurations to meet specific bandwidth and noise requirements. Verify that the 32-pin VQFN footprint fits the target PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

The ADS1288 belongs to the ADS128x family of delta-sigma ADCs optimized for seismology. It shares architectural similarities with other devices in the series but offers specific pin counts and package options tailored for compact seismic sensor designs. The IRHBT designation indicates the specific thermal and mechanical packaging variant within this product line.

Analog To Digital Converters (ADC) Replacement Considerations

Check for ADS1288 variants with different suffixes that may offer alternative packages or extended temperature ranges. Verify functional compatibility if substituting with other members of the ADS128x family, ensuring pinout and register compatibility remain consistent.