ADS7953SDBTR

Analog To Digital Converters (ADC) Overview

The ADS7953SDBTR is a 12-bit, 1-MSPS, 16-channel single-ended microPower SAR ADC manufactured by Texas Instruments. It operates within an analog supply voltage range of 2.7 V to 5.25 V and a digital supply voltage range of 1.7 V to 5.25 V. The device features a serial interface compatible with standard SPI protocols. Key performance metrics include a signal-to-noise ratio (SNR) of 70 dB and a signal-to-noise and distortion ratio (SINAD) of 71.3 dB. Differential nonlinearity (DNL) and integral nonlinearity (INL) are specified at +/- 1 LSB. The component consumes 11.5 mW of power and functions reliably across a temperature range of -40°C to +125°C. It is housed in a 38-pin TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 16-channel multiplexer for single-ended input acquisition with a successive approximation register architecture.
• Supports flexible reference configurations with an external reference voltage requirement of 2.51 V.
• Enables zero-latency operation through selectable unipolar input ranges controlled via GPIO pins.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel data acquisition
• Portable instrumentation utilizing battery-powered single-ended sensors
• Automotive sensor monitoring applications operating under extended temperature conditions

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'SDBTR' corresponds to the 38-TSSOP package and reel packaging configuration. Confirm RoHS compliance status and lead-free material declarations against current manufacturer documentation. Ensure the ordering part number matches the required tape-and-reel quantity specifications for automated assembly processes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when sixteen single-ended channels require simultaneous sampling capabilities at high speeds. Consider the ADS7953SDBTR over differential variants if system ground noise is manageable and channel count efficiency is prioritized. Evaluate the 11.5 mW power consumption against strict energy budgets in portable designs.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS795x family of microPower analog-to-digital converters. It shares architectural similarities with the ADS7950 and ADS7951 but distinguishes itself through its 16-channel capacity. The SDBTR designation specifically identifies the surface-mount TSSOP-38 variant with reel packaging, differentiating it from tube-packaged or QFN-based alternatives within the same series.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7953SBDBTR serves as a direct pin-compatible alternative within the same series. For reduced channel requirements, the ADS7950SDBT offers a 4-channel solution. Higher density options include the ADS7960 for 12-channel 8-bit conversion.