ADS7958SDBTR

Analog To Digital Converters (ADC) Overview

The ADS7958SDBTR is an 8-bit, 1-MSPS, 4-channel single-ended SAR ADC from Texas Instruments. It operates with analog supply voltages of 2.7 V to 5.25 V and digital supply voltages of 1.7 V to 5.25 V. The device features a TSSOP-30 package and supports SPI serial interface communication. Key performance metrics include a power consumption of 11.5 mW, a full-power bandwidth of 47 MHz, and a signal-to-noise ratio (SNR) of 49 dB. Differential nonlinearity (DNL) is specified at 0.3 LSB, while integral nonlinearity (INL) is also 0.3 LSB. The operating temperature range extends from -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a multiplexer, sample-and-hold circuit, and 8-bit ADC in a single microPower architecture.
• Supports flexible input configurations with two software-selectable unipolar modes.
• Provides zero-latency data output for immediate processing requirements.

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'TR' indicates reel packaging when sourcing components. Confirm that the TSSOP-30 pinout matches the target PCB footprint design. Ensure voltage levels on the SPI interface are compatible with the system's digital logic domain, as the digital supply range starts at 1.7 V. Check humidity sensitivity handling requirements during assembly.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution and 1-MSPS sampling rate are sufficient for the application. Consider the external reference requirement if high precision is needed beyond the internal capabilities. Evaluate the TSSOP-30 package constraints against available board space. Compare against higher-resolution variants like the ADS7951 if greater accuracy is required.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS79xx family of microPower SAR ADCs manufactured by Texas Instruments. It shares architectural similarities with other members such as the ADS7950 and ADS7960 but differs in resolution and channel count. The series is designed for low-power applications requiring moderate speed and multiple single-ended inputs.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7950SDBT serves as a related variant within the same product family, offering different channel counts and resolutions. Verify pin compatibility and electrical specifications before substituting.