ADS7953SBRHBT

Analog To Digital Converters (ADC) Overview

The ADS7953SBRHBT is a 12-bit, 16-channel, single-ended microPower successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with 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 achieves a sampling rate of 1 MSPS with a typical power consumption of 11.5 mW. Key performance metrics include a signal-to-noise ratio (SNR) of 71.7 dB and a signal-to-noise and distortion ratio (SINAD) of 71.3 dB. Integral nonlinearity is specified at 0.024% FSR. It utilizes an external reference voltage of 2.5 V and communicates via an SPI interface. The component is housed in a 32-pin VQFN package and supports operating temperatures from -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Provides 16 single-ended analog input channels for multi-point monitoring applications.
• Integrates a high-speed SAR architecture capable of 1 MSPS conversion rates.
• Features low power consumption suitable for battery-operated systems.
• Supports flexible digital logic levels through independent analog and digital supply domains.

Analog To Digital Converters (ADC) Applications

• Industrial process control data acquisition systems
• Portable instrumentation and test equipment
• Battery-powered sensor monitoring nodes

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'RHBT' corresponds to the required tape-and-reel packaging configuration and moisture sensitivity level before ordering. Confirm that the external reference voltage requirements align with the system's 2.5 V design constraints. Ensure the PCB layout accommodates the VQFN-32 thermal pad requirements for optimal heat dissipation during continuous operation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of moderate resolution and high channel count is required without differential input complexity. Compare against the ADS7957 if lower resolution is acceptable for reduced cost, or the ADS7950 if fewer channels suffice. Ensure the application does not require internal reference generation, as this part relies on an external source.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS795x family of microPower ADCs from Texas Instruments. It shares architectural similarities with the ADS7950, ADS7951, and ADS7957 but distinguishes itself through its specific 12-bit resolution and 16-channel capacity. The family is designed for applications requiring multiple single-ended inputs with serial interface compatibility.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7953SRHBT is a verified equivalent part number within the same product line. Verify pinout and electrical specifications match exactly before substitution. Other family members like ADS7957 offer similar form factors but differ in resolution and channel count.