Overview
The AD574AKD is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This integrated circuit is part of the AD574A series, which is known for its high precision and reliability. The AD574AKD integrates all analog and digital functions on a single chip, utilizing Analog Devices' Bipolar/I2L process. This design minimizes offset, linearity, and scaling errors through active laser-trimming of thin-film resistors and uses an implanted buried Zener for the voltage reference, ensuring low noise and low drift.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Temperature Range | 0°C to +70°C (Grade K) |
| Package Type | 28-Lead CerDIP (Side Brazed), 28-Lead PDIP, 28-Lead PLCC |
| Logic Type | I2L logic |
| Voltage Reference | Implanted buried Zener |
| Output Buffers | 3-state output buffers |
| Military Compliance | Optional processing to MIL-STD-883C Class B; JAN QPL for T and U grades |
Key Features
- Precision Conversion: The AD574AKD features high precision due to the active laser-trimming of thin-film resistors, minimizing offset, linearity, and scaling errors.
- Low Noise and Drift: The use of an implanted buried Zener for the voltage reference ensures low noise and low drift, making it suitable for high-accuracy applications.
- Integrated Design: All analog and digital functions are integrated on a single chip, simplifying the design and reducing the need for external components.
- Multiple Package Options: Available in 28-Lead CerDIP (Side Brazed), 28-Lead PDIP, and 28-Lead PLCC packages, offering flexibility in design and implementation.
- Military Grade Options: Certain grades are available with optional processing to MIL-STD-883C Class B and JAN QPL, making it suitable for military and aerospace applications.
Applications
The AD574AKD is suitable for a variety of applications that require high precision and reliability, including:
- Industrial Automation: For precise measurement and control in industrial environments.
- Military and Aerospace: Due to its compliance with military standards, it is ideal for use in military and aerospace applications.
- Medical Devices: For accurate data acquisition in medical equipment.
- Test and Measurement Equipment: For high-accuracy measurements in test and measurement instruments.
Q & A
- What is the resolution of the AD574AKD?
The AD574AKD has a resolution of 12 bits.
- What are the available package types for the AD574AKD?
The AD574AKD is available in 28-Lead CerDIP (Side Brazed), 28-Lead PDIP, and 28-Lead PLCC packages.
- What is the temperature range for the AD574AKD?
The temperature range for the AD574AKD (Grade K) is 0°C to +70°C.
- Does the AD574AKD comply with military standards?
Yes, certain grades of the AD574AKD are available with optional processing to MIL-STD-883C Class B and JAN QPL.
- What type of logic is used in the AD574AKD?
The AD574AKD uses I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
- How does the AD574AKD minimize errors?
The AD574AKD minimizes offset, linearity, and scaling errors through active laser-trimming of thin-film resistors.
- What is the purpose of the implanted buried Zener in the AD574AKD?
The implanted buried Zener is used for the voltage reference, ensuring low noise and low drift.
- Is the AD574AKD suitable for high-accuracy applications?
Yes, the AD574AKD is designed for high-accuracy applications due to its precision conversion and low noise characteristics.
- Can the AD574AKD be used in medical devices?
Yes, the AD574AKD can be used in medical devices where accurate data acquisition is necessary.
- What types of industries can benefit from using the AD574AKD?
The AD574AKD can benefit industries such as industrial automation, military and aerospace, medical devices, and test and measurement equipment.
