ADS1219IRTER

Overview

The ADS1219IRTER is a 24-bit, low-power analog-to-digital converter (ADC) from Texas Instruments. It features four input channels with an I2C interface and supports differential or single-ended inputs. The device utilizes a sigma-delta architecture and offers a sampling rate of 1 kS/s. It operates on analog and digital supply voltages ranging from 2.3 V to 5.5 V. Key specifications include an internal reference voltage of 2.048 V, programmable gain amplifier (PGA), and 50/60 Hz rejection capabilities. The component is housed in a WQFN-16 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a programmable gain amplifier for flexible signal conditioning
• Includes built-in 50/60 Hz line frequency rejection filters
• Features an internal oscillator and reference voltage source

Applications

• Industrial process control systems requiring high-resolution data acquisition
• Portable instrumentation utilizing battery power
• Weight scales and load cell measurement applications

Procurement Notes

Verify the specific suffix 'TER' corresponds to the tape-and-reel packaging configuration as indicated by distributor listings. Confirm that the WQFN-16 package variant matches the design requirements. Ensure compliance with RoHS directives and check moisture sensitivity levels for proper handling during assembly processes.

Selection Notes

Select this component when a 24-bit resolution is required alongside a serial I2C interface. It is suitable for designs needing multiple input channels without external multiplexers. Consider the operating voltage range and thermal performance if deploying in extreme environmental conditions.

Part Context

This part belongs to the ADS1219 family of precision ADCs. It shares core architectural similarities with variants like the ADS1219IPWR but differs in packaging and reel specifications. The series is designed for general-purpose applications demanding high accuracy and low power consumption.

Replacement Considerations

The ADS1219IPWR serves as a pin-compatible alternative in a TSSOP-16 package. Verify that the change in footprint does not impact the PCB layout. Other family members may offer different channel counts or interfaces.