ADS1259QPWRQ1

Overview

The ADS1259QPWRQ1 is a 24-bit analog-to-digital converter (ADC) designed for automotive applications, featuring a single differential input channel and sigma-delta architecture. It operates with an external reference and supports sampling rates up to 14 kSPS. The device functions within a digital supply voltage range of 2.7 V to 5.25 V and includes an integrated programmable gain amplifier (PGA). Packaged in a 20-TSSOP surface-mount case, it is qualified under AEC-Q100 standards and ensures reliable operation across an industrial temperature range from -40°C to +105°C.

Feature Summary

• High-resolution 24-bit data conversion capability using sigma-delta modulation.

Applications

• Automotive sensor signal conditioning

Procurement Notes

Verify the specific revision level and manufacturing date code against the latest Texas Instruments datasheet to ensure compliance with current automotive quality standards. Confirm that the 20-TSSOP package dimensions match the target PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a high-precision, single-channel ADC is required for automotive environments. Ensure the system design accommodates the 2.7 V to 5.25 V digital supply range and provides an appropriate external reference voltage source to utilize the full resolution capabilities of the internal PGA.

Part Context

This part belongs to the ADS1259 family of precision ADCs, specifically tailored for automotive use as indicated by the Q1 suffix. It shares architectural similarities with other ADS125x devices but is distinguished by its automotive qualification and specific pinout configuration in the TSSOP-20 package.

Replacement Considerations

Direct substitutes include non-automotive grade ADS1259 variants or other 24-bit sigma-delta ADCs from Texas Instruments, provided they meet the required operating temperature range and supply voltage specifications without requiring significant circuit redesign.