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Product attributes Property Value
Manufacturer Analog Devices Inc.
Product Series
Packaging Marketplace | Tube
Number of Bits 8
Sampling Rate (Per Second) -
Number of Inputs 1
Input Type Single Ended
Data Interface Parallel
Configuration S/H-ADC
Ratio - S/H:ADC 1:1
Number of A/D Converters 1
Architecture Flash
Reference Type External
Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V
Features -
Operating Temperature -40°C ~ 85°C
Mounting Type Through Hole
Grade -
Qualification -
Package / Case 20-CDIP (0.300", 7.62mm)
Supplier Device Package 20-CERDIP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Analog Devices AD7820CQ is a reliable 8-bit analog-to-digital converter featuring a single input channel and a parallel interface. It utilizes a sample-and-hold architecture and requires an external reference for conversion. Housed in a robust 20-pin ceramic DIP package, it is designed to operate over a wide temperature range of -40°C to +85°C. This ADC is a practical choice for industrial control, data logging, and other applications requiring straightforward, low-resolution signal digitization.

  • Simple Parallel Interface: The parallel output simplifies connection to microcontrollers and digital systems, reducing software overhead.
  • Robust Ceramic Package: The CDIP package offers excellent durability and thermal performance, suitable for harsh environments.
  • Wide Temperature Range: Rated for -40°C to +85°C, it is reliable in demanding industrial settings.
  • Proven Architecture: The S/H ADC architecture provides stable and predictable conversion performance.

Industrial Process Control

The AD7820CQ's 8-bit resolution and parallel interface make it suitable for industrial control loops where monitoring analog signals like temperature and pressure with moderate precision is required.

Legacy System Integration

Its parallel interface and CDIP package allow for easy integration into existing legacy systems that require through-hole components and simple digital readouts.

Simple Data Logging

For basic data logging applications, this ADC can digitize sensor signals for microcontrollers, providing a straightforward solution for capturing environmental data.

Automotive Sensor Interfaces

In automotive environments, the wide temperature range and robust ceramic package make it suitable for interfacing with various sensors in engine control or battery management systems.

Educational Kits

Due to its simple interface and low resolution, it is often used in educational settings to teach the fundamentals of analog-to-digital conversion.

Q: What is the resolution of the AD7820CQ?
A: The AD7820CQ is an 8-bit analog-to-digital converter.
Q: How many channels does this ADC have?
A: It has a single input channel.
Q: What is the interface type?
A: It features a parallel digital output interface.
Q: What is the architecture of the AD7820CQ?
A: It uses a Sample-and-Hold (S/H) ADC architecture.
Q: What is the reference type?
A: It requires an external voltage reference.
Q: What is the package type?
A: It is available in a 20-pin CDIP (Ceramic Dual In-line Package).
Base Product Number : AD7820
8-bit AD7820 ADC Analog Devices Analog-to-Digital Converter Industrial Parallel S/H-ADC
Q: What is the resolution of the AD7820CQ?
A: The AD7820CQ is an 8-bit analog-to-digital converter.
Q: How many channels does this ADC have?
A: It has a single input channel.
Q: What is the interface type?
A: It features a parallel digital output interface.
Q: What is the architecture of the AD7820CQ?
A: It uses a Sample-and-Hold (S/H) ADC architecture.
Q: What is the reference type?
A: It requires an external voltage reference.
Q: What is the package type?
A: It is available in a 20-pin CDIP (Ceramic Dual In-line Package).