ADS1243IPWR

Overview

The ADS1243IPWR is a 24-bit analog-to-digital converter (ADC) from Texas Instruments, housed in a TSSOP-20 package. It utilizes a sigma-delta architecture and supports up to eight differential input channels. The device operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. It features an integrated programmable gain amplifier (PGA), internal reference, and GPIOs. Communication is handled via a 3-wire or SPI interface. Key performance metrics include a sampling rate of 15 S/s, power consumption of 600 µW, and linearity specifications of ±1 LSB DNL and ±0.0015% FSR INL.

Feature Summary

• Integrated 24-bit sigma-delta ADC with built-in PGA and internal reference
• Supports multiple differential input channels for flexible sensor interfacing
• Features 50/60 Hz rejection capabilities to suppress power line interference
• Includes general-purpose I/O pins for system configuration and control

Applications

• Industrial process control systems requiring high-resolution signal acquisition
• Weigh scales and load cell measurement applications
• Portable instrumentation benefiting from low power consumption
• Data acquisition systems utilizing resistive bridge sensors

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and temperature range. Confirm RoHS compliance status through the latest datasheet revision. Cross-reference the component marking with the official part identification guide to prevent counterfeit risks during sourcing.

Selection Notes

Select this component when a high-resolution 24-bit conversion is required with minimal external circuitry. The integrated PGA reduces the need for additional amplification stages. Ensure the application budget accommodates the 2.7 V to 5.25 V supply range. Verify that the 15 S/s data rate meets the system's throughput requirements for dynamic signals.

Part Context

This part belongs to the ADS124x family of precision ADCs designed for low-power, high-resolution applications. It shares architectural similarities with other devices in the series but offers specific channel counts and feature sets tailored for industrial and portable use cases. The IPWR suffix denotes the surface-mount TSSOP-20 packaging variant.

Replacement Considerations

Consult the official TI selection guide for direct pin-compatible alternatives within the ADS124x family. Verify functional equivalence regarding resolution, channel count, and interface compatibility before substitution.