ADS7822PB

Analog To Digital Converters (ADC) Overview

The ADS7822PB is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates on a single power supply ranging from 2.7V to 5.25V, consuming only 1.6mW at full speed of 200kSPS. The device features a pseudo-differential input structure and an asynchronous serial interface compatible with standard SPI protocols. It is housed in an 8-pin plastic small outline (SOIC-8) package. Key performance metrics include a differential nonlinearity (DNL) of ±1 LSB and integral nonlinearity (INL) of ±1 LSB, ensuring accurate data conversion for precision applications.

Analog To Digital Converters (ADC) Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• High-speed sampling capability up to 200kSPS
• Pseudo-differential input configuration for improved noise rejection
• Asynchronous serial interface for easy microprocessor integration

Analog To Digital Converters (ADC) Applications

• Battery-powered instrumentation
• Remote data acquisition systems
• Industrial process control loops
• Medical equipment signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'PB' against the official Texas Instruments datasheet to confirm the SOIC-8 package variant and tape-and-reel or tube packaging status. Ensure the ordering part number matches the required temperature range and industrial grade specifications. Cross-reference with authorized distributors to confirm current availability and authenticity of the component.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between high sampling speed and low power consumption is required. The 12-bit resolution and ±1 LSB linearity make it suitable for general-purpose precision applications. Consider the external reference voltage requirement and the pseudo-differential input topology during circuit design. Compare with other ADS7822 variants if different packaging or pinout configurations are needed.

Analog To Digital Converters (ADC) Part Context

The ADS7822 series represents Texas Instruments' solution for micropower sampling ADCs. The ADS7822PB specifically denotes the SOIC-8 package version within this family. It shares core architectural features with other variants like the EB (MSOP-8) and UB (SOIC-8), differing primarily in physical package dimensions and mounting style while maintaining identical electrical performance characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements include other ADS7822 variants such as ADS7822UB or ADS7822EB, provided the package footprint allows for mechanical adaptation. Verify that any substitute maintains the same 12-bit resolution, 200kSPS speed, and 2.7V-5.25V operating voltage range. Check for compatibility with existing serial communication protocols and reference voltage requirements.