ADS7822UBG4

Analog To Digital Converters (ADC) Overview

The ADS7822UBG4 is a single-channel, 12-bit 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 of 4.75 V to 5.25 V. The device supports a sampling rate of 200 kS/s and features a 3-wire serial interface. It accepts pseudo-differential or single-ended inputs and consumes 1.6 mW of power. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 71 dB, with differential and integral nonlinearity both specified at +/- 1 LSB. It is housed in an SOIC-8 package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• MicroPower architecture enabling low energy consumption suitable for battery-operated systems
• High-speed 200 kS/s sampling capability with 12-bit resolution
• Flexible input configuration supporting both pseudo-differential and single-ended modes
• Standard 3-wire serial interface compatible with common microprocessors

Analog To Digital Converters (ADC) Applications

• Portable instrumentation requiring low power consumption
• Battery-powered data acquisition systems
• Industrial process control monitoring
• Medical equipment signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'BG4' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure the required operating voltage aligns with the specified 2.7 V to 5.25 V analog range. Confirm that the SOIC-8 package dimensions match the target PCB footprint. Check for any lead-free manufacturing updates that may affect soldering profiles.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of speed and power efficiency is required for single-channel applications. The 12-bit resolution and 200 kS/s rate suit moderate-speed data acquisition tasks. Consider the external reference requirement if high accuracy is needed, as the device does not include an internal reference. Evaluate the SOIC-8 package availability against space constraints in the design.

Analog To Digital Converters (ADC) Part Context

The ADS7822UBG4 belongs to the ADS7822 family of microPower ADCs from Texas Instruments. This series is designed for applications demanding low power consumption without sacrificing significant performance. The 'UB' designation typically indicates the SOIC-8 package variant, while 'G4' denotes lead-free and RoHS compliance. It serves as a cost-effective solution for general-purpose analog-to-digital conversion needs.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7822EC/2K5G4 offers similar specifications but utilizes a VSSOP-8 package and has a lower sampling rate of 75 kS/s. Direct pin-for-pin replacement is not possible due to the package difference. Verify if the reduced speed meets system requirements before considering alternative packages within the same family.