ADS7950SBDBTR

Analog To Digital Converters (ADC) Overview

The ADS7950SBDBTR is a 12-bit, 4-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. The device features an SPI-compatible serial interface for data output. It functions 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. 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 is housed in a 30-pin TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• MicroPower architecture enabling low energy consumption suitable for battery-operated systems
• High-speed 1 MSPS sampling capability with 12-bit resolution across four channels
• Flexible dual-supply operation supporting both 3V and 5V logic interfaces

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation requiring low power and moderate precision
• Industrial process control systems with multiple sensor inputs
• Data acquisition modules for environmental monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the specific grade variant matches application temperature requirements. Ensure external reference voltage components are selected to support the 2.51 V reference specification. Check moisture sensitivity level handling procedures during assembly. Validate that the 30-TSSOP footprint aligns with the target PCB design constraints.

Analog To Digital Converters (ADC) Selection Notes

Select this model when four single-ended channels are required alongside 12-bit accuracy. Compare against ADS7951 for differential input configurations or ADS7954 for lower resolution needs. Consider the ADS7953 if sixteen channels are necessary instead of four. Evaluate power budget constraints as the device draws 11.5 mW. Ensure the system clock can support the 1 MSPS maximum sampling rate without introducing excessive jitter.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADS795x family of microPower SAR ADCs manufactured by Texas Instruments. It shares architectural similarities with the ADS7951, ADS7953, and ADS7954 models. The family is designed for applications balancing speed, resolution, and power efficiency. The SBDBTR designation specifies the 12-bit, 4-channel variant in a tape-and-reel TSSOP-30 package.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7950SBDBT is the tube-packaged equivalent of this part number. ADS7951SBDBTR offers the same pinout but supports differential inputs. ADS7953SBDBTR provides sixteen channels with identical resolution and speed. ADS7954SBDBTR reduces resolution to 10 bits while maintaining the channel count.