ADS1219IPWT

Overview

The ADS1219IPWT is a 24-bit analog-to-digital converter (ADC) manufactured by Texas Instruments, housed in a 16-TSSOP package. It features a sigma-delta architecture with four input channels supporting both differential and single-ended configurations. The device operates on a supply voltage range of 2.3V to 5.5V for both analog and digital domains. It provides a sampling rate of 1kSPS and utilizes an I2C interface for data communication. Key specifications include an internal reference voltage of 2.048V, programmable gain amplifier (PGA) support, and operation within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a 24-bit sigma-delta modulator with a multiplexer for multi-channel signal acquisition.
• Supports flexible input configurations including differential and single-ended modes via an integrated MUX-ADC.
• Includes an internal reference voltage source and programmable gain amplifier to optimize signal conditioning.
• Features built-in oscillator and 50/60 Hz rejection capabilities for noise reduction.

Applications

• Industrial process control systems requiring high-resolution data acquisition.
• Portable instrumentation utilizing low-voltage power supplies.
• Weight scales and load cell measurement applications.
• Medical equipment demanding precise analog signal digitization.

Procurement Notes

Verify the specific ordering suffix to ensure the correct packaging format, such as tape and reel or cut tape, matches production requirements. Confirm that the component meets RoHS3 compliance standards for environmental regulations. Check the moisture sensitivity level (MSL 3) to determine appropriate handling precautions during storage and assembly processes.

Selection Notes

Select this component when a balance of high resolution and moderate speed is required for multi-channel applications. Ensure the system design accommodates the I2C interface timing constraints and the 16-TSSOP footprint. Verify that the operating voltage range aligns with the available power rails and that the thermal performance supports the specified junction temperature limits.

Part Context

This part belongs to the ADS1219 series of precision ADCs from Texas Instruments. It shares architectural similarities with other devices in the family but is distinct in its channel count and interface type compared to variants like the ADS1203 or ADS131M04. The IPWT suffix denotes the specific surface-mount package configuration used in this product line.

Replacement Considerations

Direct substitutes may include other Texas Instruments 24-bit delta-sigma ADCs with I2C interfaces, such as the ADS1217 or ADS1218, provided pin compatibility and feature sets align with the design requirements. Cross-referencing datasheets is essential to verify electrical parameter equivalence.