AD7854AQ - Analog Devices Inc.

Manufacturer Part Number

AD7854AQ

Manufacturer

analog-devices

Introduction

The AD7854AQ is a high-performance analog to digital converter (ADC) designed for data acquisition systems, featuring precise conversion of analog signals to digital form.

Product Features and Performance

12-bit resolution for high precision measurements

Fast sampling rate of up to 200k samples per second

Single pseudo-differential input for simplified signal acquisition

Supports both SPI data interface for easy communication with microcontrollers and digital systems

Configurable sample and hold (S/H) to ADC ratio, allowing flexibility in measurement timing

Successive Approximation Register (SAR) architecture for efficient data conversion

Option to use either an external or internal reference, providing flexibility in setting the conversion scale

Operates with analog supply voltages from 3V to 5.5V and digital supply voltages from 3V to 5.5V, accommodating a variety of power supplies

Designed for operation in a wide temperature range from -40°C to 85°C

Product Advantages

High precision and speed suitable for demanding applications

Flexibility in system design through support for different reference types and power supplies

Easy integration into digital systems via SPI interface

Reliable performance in extreme temperature environments

Key Technical Parameters

Number of Bits: 12

Sampling Rate (Per Second): 200k

Number of Inputs: 1

Input Type: Pseudo-Differential

Data Interface: SPI

Architecture: SAR

Voltage Supply, Analog: 3V ~ 5.5V

Voltage Supply, Digital: 3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Designed and tested to meet stringent quality and safety standards for reliable operation in industrial environments

Compatibility

Through Hole mounting type ensures compatibility with various PCB designs

Application Areas

Industrial data acquisition systems

Precision sensor interfacing

Portable instrumentation

Medical devices monitoring

Product Lifecycle

Obsolete status indicates that the product is no longer being manufactured by Analog Devices and may have limited availability or support. Customers are encouraged to seek replacements or upgrades for ongoing projects.

Several Key Reasons to Choose This Product

High-resolution 12-bit measurement capability enables detailed data acquisition.

Fast 200k samples per second rate allows capturing of rapidly changing signals.

Flexible data interface and power supply options support a wide range of system designs.

Durable and reliable performance in extreme temperatures suits demanding industrial applications.

Although obsolete, its unique features may still make it the ideal choice for specific legacy applications or systems where it is currently integrated.