ADS7818P - Texas Instruments

Manufacturer Part Number

ADS7818P

Manufacturer

Texas Instruments

Introduction

The ADS7818P is a precision, low-power, 12-bit analog to digital converter (ADC) with a high-speed Serial Peripheral Interface (SPI). Designed for a wide range of applications requiring accurate digital representation of analog signals.

Product Features and Performance

12-bit resolution providing high precision

Fast sampling rate up to 500k samples per second

Differential input type for improved noise immunity

SPI data interface for easy integration with most microcontrollers

Sample-and-Hold (S/H) feature ensures accurate sampling at high speeds

Successive Approximation Register (SAR) architecture for rapid data conversion

Internal reference reduces external component count

Operates from a single 5V supply for both analog and digital circuits

Wide operating temperature range from -40°C to 85°C

Product Advantages

High resolution and fast sampling rate suitable for real-time applications

Differential input increases reliability in noisy environments

Simple SPI interface compatible with a broad range of digital systems

Integrated features minimize external hardware, reducing overall system cost

Robust design ensures performance across extensive temperature ranges

Key Technical Parameters

Number of Bits: 12

Sampling Rate (Per Second): 500k

Number of Inputs: 1

Input Type: Differential

Data Interface: SPI

Configuration: S/H-ADC

Architecture: SAR

Reference Type: Internal

Voltage Supply, Analog: 5V

Voltage Supply, Digital: 5V

Quality and Safety Features

Manufactured by Texas Instruments, known for high-standard and reliable semiconductor products

Compatibility

SPI interface allows for straightforward integration with most microcontroller platforms

Application Areas

Industrial process control

Medical instrumentation

Portable devices

Data acquisition systems

Automotive sensors

Product Lifecycle

Classified as Obsolete, indicating that it is nearing the end of its product lifecycle

Users should consider seeking replacements or upgrades for future designs

Several Key Reasons to Choose This Product

High resolution and speed ideal for precision measurement applications

Differential input and internal reference improve accuracy and reduce design complexity

Robust operating temperature range makes it suitable for challenging environments

Direct interface with digital systems through SPI enhances compatibility

Backed by Texas Instruments' reputation for quality and support, even though it is an obsolete product