ADS7945SRTER

Analog To Digital Converters (ADC) Overview

The ADS7945SRTER is a dual-channel, 14-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a sampling rate of 2 MSPS and supports both differential and pseudo-differential input configurations. The device utilizes an external reference and communicates via a standard SPI interface. It functions within an analog supply voltage range of 2.7 V to 5.25 V and a digital supply range of 1.65 V to 5.25 V. The component is housed in a 16-pin WQFN package and is rated for operation between -40°C and +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture with integrated multiplexer and sample-and-hold circuitry
• Ultralow-power consumption suitable for battery-operated applications
• Flexible input configuration supporting differential and pseudo-differential modes

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation
• Industrial process control systems
• Data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the ordering code corresponds to the correct tape and reel quantity specified in the official documentation. Cross-reference the RoHS status and moisture sensitivity level with current environmental compliance standards before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of 14-bit resolution and high-speed 2 MSPS sampling is required for dual-channel signals. Consider the external reference requirement and the specific supply voltage constraints of the target system. Evaluate the thermal performance within the 16-WQFN package relative to the expected power dissipation in the application environment.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS794x family of ultralow-power ADCs from Texas Instruments. The series includes variants with different resolutions such as the 8-bit ADS7949, 12-bit ADS7947, and 14-bit ADS7946. All members share similar interfaces and packaging but differ in resolution and specific electrical parameters.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7946SRTER serves as a higher-resolution alternative within the same package and interface family. Designers requiring lower resolution may consider the ADS7947SRTER or ADS7949SRTET. Verify that any substitute maintains compatibility with the existing SPI protocol and voltage levels.