Overview
The AD7820KN is a high-speed, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the LC2MOS family and is designed to be compatible with microprocessors. It features a track/hold function, making it suitable for a variety of high-speed data acquisition applications. Although the AD7820KN is currently listed as obsolete and no longer manufactured, it remains an important component in legacy systems and for educational purposes.
Key Specifications
Parameter | Value |
---|---|
Manufacturer | Analog Devices Inc. |
Part Number | AD7820KN |
Package | 20-DIP (0.300, 7.62mm) |
Number of Pins | 20 |
Number of Bits | 8 |
Sampling Rate | 400 ksps |
Polarity | Unipolar |
Minimum Supply Voltage | 4.75 V |
Supply Voltage | 5 V |
Maximum Supply Voltage | 5.25 V |
Minimum Analog Input Voltage | -0.3 V |
Height | 3.3 mm |
Length | 26.16 mm |
Width | 6.35 mm |
Key Features
The AD7820KN features several key attributes that make it a robust choice for high-speed data acquisition:
- High-Speed Conversion: The ADC operates at a sampling rate of 400 ksps, making it suitable for applications requiring rapid data conversion.
- Microprocessor Compatibility: Designed to be compatible with microprocessors, it simplifies integration into various digital systems.
- Track/Hold Function: This feature allows for accurate sampling of the analog input signal, ensuring reliable data acquisition.
- Unipolar Operation: The ADC operates in unipolar mode, which is beneficial for applications where only positive voltage inputs are expected.
- Compact Packaging: The 20-DIP package is compact and easy to integrate into various board designs.
Applications
The AD7820KN is suitable for a variety of applications, including:
- Data Acquisition Systems: Its high-speed conversion and track/hold function make it ideal for data acquisition systems that require rapid and accurate sampling.
- Industrial Control Systems: It can be used in industrial control systems where precise and fast analog-to-digital conversion is necessary.
- Medical Devices: The ADC can be integrated into medical devices that require high-speed data conversion, such as patient monitoring systems.
- Aerospace and Defense: Although obsolete, it may still be found in legacy systems within these sectors due to its reliability and performance.
Q & A
- What is the AD7820KN?
The AD7820KN is an 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc.
- What is the sampling rate of the AD7820KN?
The AD7820KN has a sampling rate of 400 ksps.
- What is the supply voltage range for the AD7820KN?
The supply voltage range is from 4.75 V to 5.25 V, with a nominal voltage of 5 V.
- Is the AD7820KN still in production?
No, the AD7820KN is listed as obsolete and is no longer manufactured.
- What package type does the AD7820KN come in?
The AD7820KN comes in a 20-DIP (0.300, 7.62mm) package.
- What is the minimum analog input voltage for the AD7820KN?
The minimum analog input voltage is -0.3 V.
- Is the AD7820KN compatible with microprocessors?
Yes, the AD7820KN is designed to be compatible with microprocessors.
- What is the track/hold function in the AD7820KN?
The track/hold function allows for accurate sampling of the analog input signal.
- What are some common applications of the AD7820KN?
Common applications include data acquisition systems, industrial control systems, medical devices, and aerospace and defense systems.
- Where can I find detailed specifications for the AD7820KN?
Detailed specifications can be found in the datasheet available on the Analog Devices website or through distributors like Mouser and Digi-Key.