ADS7279IRSAR

Analog To Digital Converters (ADC) Overview

The ADS7279IRSAR is a low-power, 14-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It supports sampling rates up to 1 MSPS with single-ended or dual unipolar input configurations. The device operates on a 5 V analog supply and a 3.3 V digital supply, consuming approximately 13.7 mW of power. It features an SPI-compatible serial interface and includes an internal oscillator. Key performance metrics include a signal-to-noise ratio (SNR) of 85.9 dB and integral nonlinearity (INL) of ±1 LSB. The component is housed in a VQFN-16 package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated internal oscillator eliminates the need for external clocking components
• Daisy-chainable architecture facilitates multi-channel system expansion
• Single-supply operation simplifies power distribution in portable designs

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation requiring high resolution and low power consumption
• Industrial process control systems utilizing serial communication interfaces
• Battery-powered data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IRSAR against official Texas Instruments documentation to confirm the tape-and-reel packaging configuration and moisture sensitivity level. Ensure compatibility with standard SPI protocols and validate that the 3.3 V digital logic levels align with the host microcontroller interface requirements before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution and 1 MSPS throughput are required in a compact surface-mount package. Consider the ADS7279 family variants if differential inputs or higher channel counts are necessary. Verify that the external reference voltage requirements match the application's precision needs, as this device utilizes an external reference architecture.

Analog To Digital Converters (ADC) Part Context

The ADS7279 belongs to Texas Instruments' low-power SAR ADC portfolio designed for battery-operated applications. It shares architectural similarities with other members of the ADS72xx series but offers specific pinout and performance characteristics tailored for single-channel or dual-input scenarios. The device integrates essential conversion logic while minimizing external component count.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7279IPWR: Verified alternative from the same manufacturer offering identical electrical specifications in a TSSOP-16 package instead of VQFN. ADS7279IPW: Verified alternative in tube packaging with matching performance parameters.