Overview
The AD574ASD/883B is a high-precision 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component integrates all analog and digital functions on a single chip, utilizing Analog Devices' Bipolar/I2L process. The design minimizes offset, linearity, and scaling errors through active laser-trimming of thin-film resistors and employs an implanted buried Zener voltage reference for low noise and low drift. The digital side of the chip uses I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Package | 28-Lead CerDIP (Side Brazed) |
| Operating Temperature Range | -55°C to +125°C |
| Data Interface | Parallel |
| Number of A/D Converters | 1 |
| Architecture | Successive Approximation |
| Reference Type | Implanted Buried Zener |
| Supply Voltage (Analog and Digital) | Not specified (refer to datasheet for detailed voltage requirements) |
Key Features
- High precision 12-bit analog-to-digital conversion.
- Integrated analog and digital functions on a single chip.
- Active laser-trimming of thin-film resistors to minimize offset, linearity, and scaling errors.
- Implanted buried Zener voltage reference for low noise and low drift.
- I2L logic for successive-approximation register, control circuitry, and 3-state output buffers.
- Available in various grades with different temperature ranges and packaging options (e.g., ceramic DIP, plastic DIP, PLCC, LCC).
- Compliant with MIL-STD-883C Class B and JAN QPL for certain grades.
Applications
- Military and aerospace systems due to its compliance with MIL-STD-883C Class B and JAN QPL.
- High-reliability industrial applications requiring precise analog-to-digital conversion.
- Medical devices and equipment that demand high accuracy and stability.
- Automotive systems where robust and reliable ADCs are essential.
- Test and measurement equipment requiring high precision and low noise.
Q & A
- What is the resolution of the AD574ASD/883B ADC?
The AD574ASD/883B has a resolution of 12 bits.
- What is the operating temperature range of the AD574ASD/883B?
The operating temperature range is -55°C to +125°C.
- What type of package is the AD574ASD/883B available in?
The AD574ASD/883B is available in a 28-Lead CerDIP (Side Brazed) package.
- What type of logic is used in the AD574ASD/883B for the successive-approximation register and control circuitry?
The AD574ASD/883B uses I2L logic for the successive-approximation register and control circuitry.
- Is the AD574ASD/883B compliant with any military standards?
Yes, the AD574ASD/883B is compliant with MIL-STD-883C Class B and JAN QPL for certain grades.
- What is the purpose of the implanted buried Zener voltage reference in the AD574ASD/883B?
The implanted buried Zener voltage reference is used for low noise and low drift.
- How are the thin-film resistors trimmed in the AD574ASD/883B?
The thin-film resistors are trimmed using active laser-trimming at the wafer stage.
- What are the typical applications of the AD574ASD/883B?
The AD574ASD/883B is typically used in military, aerospace, high-reliability industrial, medical, automotive, and test and measurement applications.
- Is the AD574ASD/883B available in different grades?
Yes, the AD574ASD/883B is available in different grades with varying temperature ranges and packaging options.
- Where can I find detailed specifications and documentation for the AD574ASD/883B?
Detailed specifications and documentation can be found on the Analog Devices website and through authorized distributors like Heisener and DigiPart.
