Overview
The AD574ASD is a complete 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device integrates all analog and digital functions on a single chip, utilizing Analog Devices' Bipolar/I2L process. The AD574ASD is designed to minimize offset, linearity, and scaling errors through active laser-trimming of thin-film resistors and an implanted buried Zener voltage reference for low noise and low drift.
The AD574ASD is part of the AD574A series, which offers various grades and packaging options to cater to different application requirements. The 'ASD' grade specifically is optimized for operation over the -55°C to +125°C temperature range, making it suitable for harsh environmental conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Method | Successive Approximation |
| Number of Channels | 1 |
| Data Interface | Parallel |
| Operating Temperature Range | -55°C to +125°C |
| Operating Supply Voltage | ±10.8 V to ±13.2 V |
| Package Type | 28-Lead CerDIP, 28-Lead Flatpack, 28-Lead LCC |
| Mounting Style | Through Hole |
Key Features
- High accuracy and linearity due to active laser-trimming of thin-film resistors.
- Low noise and low drift voltage reference using an implanted buried Zener.
- I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
- Available in various grades and packaging options, including hermetically-sealed ceramic DIP, plastic DIP, and PLCC.
- Optional processing to MIL-STD-883C Class B and JAN QPL for military-grade reliability.
Applications
- Aerospace and defense systems requiring high reliability and precision.
- Industrial control and automation where accurate analog-to-digital conversion is crucial.
- Medical devices that demand high accuracy and stability in signal conversion.
- Test and measurement equipment where precision and reliability are essential.
Q & A
- What is the resolution of the AD574ASD?
The AD574ASD has a resolution of 12 bits.
- What is the operating temperature range of the AD574ASD?
The AD574ASD operates over the -55°C to +125°C temperature range.
- What is the conversion method used in the AD574ASD?
The AD574ASD uses the successive approximation conversion method.
- What types of packages are available for the AD574ASD?
The AD574ASD is available in 28-Lead CerDIP, 28-Lead Flatpack, and 28-Lead LCC packages.
- Is the AD574ASD suitable for military applications?
- What is the data interface type of the AD574ASD?
The AD574ASD uses a parallel data interface.
- What is the supply voltage range for the AD574ASD?
The AD574ASD operates with a supply voltage range of ±10.8 V to ±13.2 V.
- How does the AD574ASD achieve high accuracy?
The AD574ASD achieves high accuracy through active laser-trimming of thin-film resistors and an implanted buried Zener voltage reference.
- What logic type is used in the AD574ASD for digital functions?
The AD574ASD uses I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
- What are some typical applications of the AD574ASD?
The AD574ASD is typically used in aerospace, industrial control, medical devices, and test and measurement equipment.
