ADS7822U - Texas Instruments

Manufacturer Part Number

ADS7822U

Manufacturer

Texas Instruments

Introduction

High precision 12-bit analog-to-digital converter with SPI interface

Product Features and Performance

12-bit resolution

Sampling Rate up to 200k samples per second

Single-channel pseudo-differential input

SPI data interface for easy digital integration

Successive Approximation Register (SAR) architecture

External voltage reference support

Analog Voltage Supply range from 2.7V to 5V

Digital Voltage Supply range from 2.7V to 5V

MicroPOWER™ Series emphasizing low-power consumption

Product Advantages

High-resolution sampling for precise measurement

Fast sampling supports a variety of dynamic applications

Compatibility with multiple microcontrollers via SPI

Low power consumption suitable for battery-powered systems

Reliable performance over industrial temperature ranges

Key Technical Parameters

Number of Bits: 12

Sampling Rate (Per Second): 200k

Number of Inputs: 1

Input Type: Pseudo-Differential

Data Interface: SPI

Configuration: S/H-ADC

Ratio - S/H:ADC: 1:1

Number of A/D Converters: 1

Architecture: SAR

Reference Type: External

Voltage - Supply: Analog and Digital 2.7V ~ 5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Robust construction in 8-SOIC package for surface mount

Designed for industrial temperature ranges ensuring reliability

Compatibility

SPI interface ensures compatibility with most microcontrollers

Surface-mount package compatible with standard PCB technology

Application Areas

Portable and battery-powered equipment

Data acquisition systems

Sensor interfacing and signal processing

Industrial control systems

Medical and scientific instrumentation

Product Lifecycle

Active product status

Part of the microPOWER™ series, not nearing discontinuation

Replacements and upgrades available within Texas Instruments portfolio

Several Key Reasons to Choose This Product

High resolution and fast sampling for detailed and responsive measurements

Low power consumption fits energy-sensitive applications

Operational stability from -40°C to 85°C for harsh environments

Easy-to-use SPI interface with numerous microcontrollers

Durable and reliable industry-standard SOIC-8 package design

Supports external voltage reference for adjustable measurement range