ADS7957SDBT

Analog To Digital Converters (ADC) Overview

The ADS7957SDBT is a 10-bit, 16-channel successive approximation register (SAR) analog-to-digital converter (ADC) from Texas Instruments. It operates with a sampling rate of 1 MSPS and supports single-ended inputs via an SPI interface. The device requires an external reference voltage of 2.51 V. Analog supply voltage ranges from 2.7 V to 5.25 V, while the digital supply operates between 1.7 V and 5.25 V. Key performance metrics include a signal-to-noise ratio (SNR) and SINAD of 60 dB, with differential and integral nonlinearity both specified at +/- 0.5 LSB. Power consumption is 11.5 mW. It functions within a temperature range of -40°C to +125°C and is housed in a 38-pin TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Provides 16 single-ended input channels for multi-point sensing applications.
• Integrates a high-speed SAR architecture supporting up to 1 MSPS conversion rates.
• Features low power consumption suitable for battery-operated systems.
• Ensures linearity accuracy with +/- 0.5 LSB DNL and INL specifications.

Analog To Digital Converters (ADC) Applications

• Industrial process control monitoring
• Data acquisition systems
• Portable instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'SDBT' against the manufacturer's current datasheet to confirm the tube packaging format and pin configuration. Ensure compatibility with the required 38-pin TSSOP footprint on the target PCB layout. Confirm that the external reference voltage matches the component's 2.51 V requirement for optimal performance.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 16 single-ended channels are required alongside 10-bit resolution and 1 MSPS throughput. Compare against the ADS7953 for higher 12-bit resolution or the ADS7955 if only 8 channels are needed. Verify that the system can accommodate the separate analog and digital supply voltage requirements and the external reference voltage source.

Analog To Digital Converters (ADC) Part Context

This part belongs to the microPOWER ADC family, designed for low-power data acquisition tasks. It shares architectural similarities with other devices in the series, such as the ADS7953 and ADS7960, differing primarily in resolution and channel count. The TSSOP-38 package allows for compact integration in space-constrained designs.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same package and functionality include the ADS7953SBDBT (12-bit) or ADS7955SDBT (8-channel). Verify pinout compatibility and software register settings when migrating between these variants.