Overview
The AD7824KN is a high-speed, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7824 series, which offers a choice of four multiplexed analog input channels. It is designed for applications requiring fast conversion rates and high accuracy.
The AD7824KN operates on a single 5 V supply and features a half-flash conversion technique, which enables a fast conversion rate of 2.5 µs per channel. It includes a built-in track-and-hold function, allowing it to handle signals up to 10 kHz bandwidth with a slew rate of 157 mV/µs. This ADC is fabricated in an advanced, all ion-implanted, linear compatible CMOS process (LC2MOS), ensuring low power dissipation and high performance.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 8 | Bits | |
| Conversion Rate | 100 KSPS | ||
| Input Type | Single-Ended | ||
| Interface Type | Parallel | ||
| Operating Supply Voltage | 4.75 V to 5.25 V | V | |
| Maximum Operating Temperature | +70°C | °C | |
| Minimum Operating Temperature | 0°C | °C | |
| Mounting Style | Through Hole | ||
| Package / Case | PDIP-24 | ||
| Maximum Power Dissipation | 80 mW | mW | |
| Number of Converters | 1 | ||
| Voltage Reference | External |
Key Features
- High-Speed Conversion: The AD7824KN features a fast conversion rate of 2.5 µs per channel, making it suitable for high-speed data acquisition applications.
- Multiplexed Analog Inputs: It includes a 4-channel input multiplexer, providing a cost-effective and space-saving solution for multichannel ADC systems.
- Built-In Track-and-Hold Function: This function allows the ADC to handle signals up to 10 kHz bandwidth with a slew rate of 157 mV/µs.
- Single 5 V Supply: Simplifies system power requirements and reduces the complexity of the power supply design.
- Low Power Dissipation: The ADC operates with a low power dissipation of 40 mW (typical), making it energy-efficient.
- Tight Error Specification: The total unadjusted error is ±1/2 LSB, ensuring high accuracy and eliminating the need for user trims.
- Easy Microprocessor Interface: The ADC can be easily interfaced to most popular microprocessors using standard Chip Select (CS) and Read (RD) signals, without the need for a clock signal.
Applications
- Data Acquisition Systems: The AD7824KN is ideal for high-speed data acquisition systems where multiple analog channels need to be digitized quickly and accurately.
- Industrial Control Systems: Its robust performance and low power consumption make it suitable for industrial control systems that require reliable and efficient ADCs.
- Medical Devices: The ADC's high accuracy and fast conversion rate are beneficial in medical devices that require precise and rapid signal processing.
- Aerospace and Defense: The component's reliability and performance under various temperature conditions make it a good fit for aerospace and defense applications.
Q & A
- What is the resolution of the AD7824KN ADC?
The AD7824KN has a resolution of 8 bits.
- What is the conversion rate of the AD7824KN?
The conversion rate is 100 KSPS (kilo-samples per second).
- What type of supply voltage does the AD7824KN require?
The AD7824KN operates on a single 5 V supply voltage, with a range of 4.75 V to 5.25 V.
- How many analog input channels does the AD7824KN have?
The AD7824KN has four multiplexed analog input channels.
- What is the maximum operating temperature of the AD7824KN?
The maximum operating temperature is +70°C.
- Does the AD7824KN have a built-in track-and-hold function?
Yes, it includes a built-in track-and-hold function capable of handling signals up to 10 kHz bandwidth.
- How does the AD7824KN interface with microprocessors?
The ADC can be easily interfaced to most popular microprocessors using standard Chip Select (CS) and Read (RD) signals, without the need for a clock signal.
- What is the power dissipation of the AD7824KN?
The typical power dissipation is 40 mW.
- Is the AD7824KN RoHS compliant?
Yes, the AD7824KN is lead-free and RoHS compliant.
- What is the package type of the AD7824KN?
The AD7824KN is available in a 24-lead PDIP (Plastic Dual In-Line Package) package.
