ADS1216Y/2KG4

Overview

The ADS1216Y/2KG4 is a high-precision, low-power analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a 24-bit resolution with an integrated multiplexer supporting eight differential or sixteen single-ended inputs. The device utilizes a sigma-delta architecture and communicates via a standard SPI interface. It operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. Key performance metrics include a maximum data rate of 780 samples per second, 50 Hz and 60 Hz rejection capabilities, and built-in programmable gain amplifiers (PGA). The component is housed in a 48-pin TQFP package and is designed for industrial applications requiring high accuracy.

Feature Summary

• Integrated excitation current sources (iDACs) for direct sensor excitation
• Built-in GPIO pins and internal oscillator for system flexibility
• Low power consumption suitable for battery-operated instruments
• High common-mode rejection ratio for noisy environments

Applications

• Industrial process control systems
• Weigh scales and load cell measurements
• Portable instrumentation devices
• Medical equipment signal acquisition

Procurement Notes

Verify the suffix 'G4' indicates lead-free compliance and RoHS status according to Texas Instruments documentation. Confirm the tape and reel quantity matches project requirements. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification. Cross-reference the specific ordering prefix with official distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when 24-bit resolution and multiple input channels are required in a compact form factor. Consider the integrated PGA if signal conditioning is needed before conversion. Evaluate the 780 S/s data rate against application bandwidth needs. Verify that the SPI interface compatibility exists with the host microcontroller. Check thermal performance within the specified operating temperature range.

Part Context

This part belongs to the ADS1216 family of precision ADCs. It shares architectural similarities with other members like the ADS1216Y/2K but may differ in packaging or environmental specifications. The 'Y' suffix typically denotes a specific temperature grade or package variant within the TI portfolio. Understanding the broader family helps in identifying compatible reference designs and software drivers.

Replacement Considerations

Direct substitutes include the ADS1216Y/2K for identical electrical performance in different packaging. The ADS1217 offers similar features with potentially different pinout or speed characteristics. Verify pin-to-pin compatibility and register-level code compatibility before substitution. Consult TI's cross-reference tools for updated availability and alternative recommendations.