Overview
The AD574AJPZ-REEL is a 12-bit successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This integrated circuit integrates all analog and digital functions on a single chip, utilizing Analog Devices' Bipolar/I2L process. The design includes active laser-trimming of thin-film resistors to minimize offset, linearity, and scaling errors. The voltage reference is based on an implanted buried Zener diode, ensuring low noise and low drift. The digital section employs I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Method | Successive Approximation |
| Package Type | 28-pin PLCC |
| Temperature Range | 0°C to +70°C (J, K, L grades) -55°C to +125°C (S, T, U grades) |
| Voltage Reference | Implanted buried Zener diode |
| Logic Type | I2L logic |
| Output Buffers | 3-state output buffers |
Key Features
- High accuracy due to active laser-trimming of thin-film resistors.
- Low noise and low drift voltage reference using an implanted buried Zener diode.
- I2L logic for low power consumption.
- 3-state output buffers for flexible interfacing.
- Available in various temperature grades and package types, including hermetically-sealed ceramic DIP, plastic DIP, PLCC, and LCC.
- Optional processing to MIL-STD-883C Class B and JAN QPL for military applications.
Applications
The AD574AJPZ-REEL is suitable for a wide range of applications requiring high precision and reliability, such as:
- Industrial control systems.
- Medical equipment.
- Aerospace and defense systems.
- Automotive systems.
- Test and measurement instruments.
Q & A
- What is the resolution of the AD574AJPZ-REEL?
The AD574AJPZ-REEL has a resolution of 12 bits. - What is the conversion method used in the AD574AJPZ-REEL?
The conversion method used is successive approximation. - What are the available temperature ranges for the AD574AJPZ-REEL?
The temperature ranges are 0°C to +70°C for J, K, L grades and -55°C to +125°C for S, T, U grades. - What type of voltage reference is used in the AD574AJPZ-REEL?
The voltage reference is based on an implanted buried Zener diode. - What logic type is used in the digital section of the AD574AJPZ-REEL?
The digital section employs I2L logic. - What types of output buffers are available on the AD574AJPZ-REEL?
The output buffers are 3-state output buffers. - In what packages is the AD574AJPZ-REEL available?
The AD574AJPZ-REEL is available in a 28-pin PLCC package, among others. - Is the AD574AJPZ-REEL suitable for military applications?
Yes, it is available with optional processing to MIL-STD-883C Class B and JAN QPL for military applications. - What are some typical applications of the AD574AJPZ-REEL?
Typical applications include industrial control systems, medical equipment, aerospace and defense systems, automotive systems, and test and measurement instruments. - How does the AD574AJPZ-REEL achieve high accuracy?
The AD574AJPZ-REEL achieves high accuracy through active laser-trimming of thin-film resistors.
