ADS7955QDBTRQ1

Analog To Digital Converters (ADC) Overview

The ADS7955QDBTRQ1 is a single-ended, micro-power analog-to-digital converter (ADC) from Texas Instruments. It features an 8-channel multiplexer and a successive approximation register (SAR) architecture with a resolution of 10 bits. The device supports a sampling rate of 1 MSPS and 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. It is housed in a TSSOP-30 package and is qualified under the AEC-Q100 standard for automotive applications. The component functions reliably across a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• AEC-Q100 qualified for automotive reliability
• Low power consumption suitable for battery operation
• Single-ended input configuration with external reference

Analog To Digital Converters (ADC) Applications

• Automotive sensor monitoring systems
• Industrial data acquisition modules
• Battery-powered measurement devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix Q1 indicates AEC-Q100 automotive qualification status. Confirm the TSSOP-30 package dimensions match the design footprint requirements. Ensure the external reference voltage specifications align with the system's signal chain before finalizing the procurement order.

Analog To Digital Converters (ADC) Selection Notes

Select this component when eight single-ended channels require simultaneous or sequential conversion at high speed. The SAR architecture provides deterministic latency compared to delta-sigma types. Verify that the required input voltage ranges fit within the specified supply limits and that the SPI interface timing meets the host controller capabilities.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS795x family of micro-power ADCs. It shares architectural similarities with other members like the ADS7956 and ADS7953 but offers a specific combination of channel count and resolution. The Q1 suffix distinguishes it as the automotive-grade variant designed for harsher environmental conditions.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7955SDBT serves as a non-automotive commercial grade alternative within the same series. Designers must verify if the reduced qualification requirements of the commercial version are acceptable for the target application environment.