ADS1216Y/250

Overview

The ADS1216Y/250 is a high-precision, low-power analog-to-digital converter featuring a 24-bit resolution and an integrated sigma-delta architecture. It supports eight differential input channels with a maximum sampling rate of 780 samples per second. The device operates on dual power supplies ranging from 2.7 V to 5.25 V for both analog and digital domains. Key electrical specifications include a differential nonlinearity (DNL) of +/- 1 LSB and an integral nonlinearity (INL) of +/- 0.0015% FSR. It utilizes an SPI interface for data communication and is housed in a 48-TQFP package suitable for surface mount applications.

Feature Summary

• Integrated programmable gain amplifier (PGA) and excitation current sources (iDACs) for sensor interfacing
• Built-in 50 Hz and 60 Hz rejection filters for noise reduction in power line environments
• On-chip oscillator and general-purpose I/O (GPIO) capabilities

Applications

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

Procurement Notes

Verify the specific suffix 'Y/250' against the manufacturer's official datasheet to confirm pinout compatibility and operational voltage ranges. Ensure that the procurement source provides valid RoHS compliance documentation. Cross-reference the part number with the official Texas Instruments database to avoid counterfeit components and confirm the correct packaging configuration for the intended assembly process.

Selection Notes

Select this component when designing systems that require multi-channel differential inputs with high accuracy. The integrated PGA reduces the need for external amplification, simplifying the schematic. Consider the 48-TQFP package size for board space constraints. Verify that the system clock requirements align with the internal oscillator or external clock options provided by the device architecture.

Part Context

This part belongs to the ADS1216 family of precision ADCs from Texas Instruments. The family is characterized by its combination of high resolution and low power consumption, making it suitable for battery-operated portable instruments. The Y/250 designation indicates a specific tape-and-reel packaging variant within the broader product line.

Replacement Considerations

Consult the official TI datasheet for confirmed substitute part numbers. Direct replacements may include other members of the ADS121x series if pin compatibility and performance metrics match the design requirements.