ADS125H02IRHBR

Overview

The ADS125H02IRHBR is a high-precision, low-power analog-to-digital converter manufactured by Texas Instruments. It features a 24-bit resolution and supports sampling rates up to 40 kSPS using a sigma-delta architecture. The device includes two differential input channels and communicates via a serial interface. It operates with an analog supply voltage ranging from 4.75 V to 5.25 V and a digital supply voltage between 2.7 V and 5.25 V. The component is housed in a VQFN-32 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrated excitation current sources (iDACs) for sensor biasing
• Built-in programmable gain amplifier (PGA) for signal conditioning
• On-chip oscillator and internal temperature sensor

Applications

• Industrial process control systems requiring high-resolution data acquisition
• Weigh scales and load cell measurement applications
• Medical instrumentation and patient monitoring devices

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when ordering. Confirm that the VQFN-32 package requires appropriate surface mount assembly techniques. Ensure the external reference voltage matches the specified input requirements for optimal accuracy. Check for moisture sensitivity level compliance during storage and handling procedures.

Selection Notes

Select this component when dual-channel 24-bit precision is required alongside integrated sensor excitation capabilities. Compare against single-channel variants if only one input is needed. Consider the operating temperature range to ensure suitability for harsh industrial environments. Verify power supply constraints align with the separate analog and digital voltage specifications.

Part Context

This part belongs to the ADS125H series of high-performance ADCs designed for demanding measurement applications. It shares architectural similarities with other members like the ADS125H01 but offers dual-channel capability. The series emphasizes low noise and high linearity for critical sensing tasks.

Replacement Considerations

Direct substitutes include other parts within the ADS125H family such as the ADS125H01 for single-channel needs. Cross-reference pinouts and electrical characteristics carefully when considering alternative manufacturers or older generations.