ADS7822UB

Analog To Digital Converters (ADC) Overview

The ADS7822UB is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a single-channel input supporting pseudo-differential or single-ended configurations with an external reference voltage. The device operates on an analog supply of 2.7 V to 5.25 V and a digital supply of 4.75 V to 5.25 V, achieving a sampling rate of 200 kS/s. Key electrical parameters include a differential nonlinearity (DNL) and integral nonlinearity (INL) of ±1 LSB, a power consumption of 1.6 mW, and a signal-to-noise and distortion ratio (SINAD) of 71 dB. It utilizes a 3-wire serial interface and is housed in an 8-pin SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• MicroPower architecture designed for low energy consumption applications
• High-speed 200 kSPS sampling capability within a compact form factor
• Flexible input configuration supporting both pseudo-differential and single-ended modes

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring low power operation
• Battery-powered data acquisition modules
• Industrial process control signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'UB' against the manufacturer's official documentation to confirm the exact tape-and-reel quantity and packaging specifications. Ensure that the ordering information matches the required industrial temperature range and pinout configuration before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between moderate resolution and high speed is required for single-channel applications. Consider the external reference requirement and the specific voltage domain compatibility between the analog and digital supplies during system design.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7822 family of micro-power ADCs from Texas Instruments. It shares core architectural similarities with variants like the ADS7822E/250 but differs in packaging and specific performance tolerances such as linearity errors. The UB designation typically indicates a specific commercial or industrial grade variant within the broader product line.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7822E/250 serves as a functional alternative within the same series, though it utilizes a VSSOP-8 package and exhibits slightly different linearity specifications. Verify pin compatibility and thermal characteristics when substituting.