ADS7945SRTET

Analog To Digital Converters (ADC) Overview

The ADS7945SRTET is a dual-channel, 14-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with an analog supply voltage range of 2.7V to 5.25V and a digital supply voltage range of 1.65V to 5.25V. The device supports a maximum sampling rate of 2M samples per second and features two differential inputs. Data is transferred via a standard SPI-compatible interface. It is housed in a 16-WQFN package measuring 3x3 mm with exposed pad for thermal dissipation. The component functions within a junction temperature range of -40°C to 125°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a multiplexer, sample-and-hold circuit, and 14-bit ADC core on a single chip
• Supports flexible input configurations including fully differential and pseudo-differential modes
• Features low power consumption suitable for battery-operated applications
• Includes internal clock generation capabilities to reduce external component count

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation
• Industrial process control systems
• Data acquisition modules
• Battery-powered measurement devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'SRTET' corresponds to the reel quantity and tape specification required for your assembly line. Confirm that the 16-WQFN(3x3) footprint matches your PCB layout exactly. Check moisture sensitivity level (MSL 2) requirements for reflow soldering profiles. Ensure voltage levels on the SPI bus are compatible with the 1.65V to 5.25V digital supply range.

Analog To Digital Converters (ADC) Selection Notes

Select this component when dual-channel 14-bit resolution at 2 MSPS is required. Compare against ADS7946 if single-ended input capability is needed instead of differential. Consider ADS7949 if lower resolution (8-bit) and higher throughput efficiency are prioritized over precision. Verify power supply constraints align with the separate analog and digital voltage ranges provided.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS794x family of ultralow-power ADCs from Texas Instruments. It shares architectural similarities with the ADS7946 and ADS7949 but differs in input configuration and resolution. The SRTET designation indicates surface mount packaging in a tape and reel format for automated placement.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7946SRTER offers similar performance but supports single-ended inputs. ADS7949SRTET provides 8-bit resolution at potentially lower cost. Direct pin-for-pin replacements within the same package require verification of electrical parameter compatibility.