Overview
The AD574AJPZ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This integrated circuit is designed to provide high precision and reliability, integrating all analog and digital functions on a single chip. The AD574A uses Analog Devices' Bipolar/I2L process and features 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 |
| Input Type | Single-ended |
| Conversion Method | Successive Approximation (SAR) |
| 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) |
| Logic Type | I2L logic |
| Output Type | 3-state output buffers |
Key Features
- High precision with minimized offset, linearity, and scaling errors through active laser-trimming of thin-film resistors.
- Low noise and low drift voltage reference using an implanted buried Zener diode.
- I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
- Available in various temperature grades and package types, including hermetically-sealed ceramic DIP, plastic DIP, PLCC, and ceramic LCC.
- Optional processing to MIL-STD-883C Class B and JAN QPL for certain grades.
Applications
The AD574AJPZ is suitable for a wide range of applications requiring high precision analog-to-digital conversion, including:
- Industrial control systems
- Medical devices
- Aerospace and military systems
- High-reliability data acquisition systems
- Automotive systems requiring precise analog-to-digital conversion
Q & A
- What is the resolution of the AD574AJPZ?
The AD574AJPZ has a resolution of 12 bits.
- What is the conversion method used in the AD574AJPZ?
The AD574AJPZ uses the successive approximation (SAR) conversion method.
- What are the available package types for the AD574AJPZ?
The AD574AJPZ is available in 28-pin hermetically-sealed ceramic DIP, plastic DIP, PLCC, and ceramic LCC packages.
- What are the temperature ranges for the different grades of the AD574AJPZ?
The J, K, and L grades are specified for operation over the 0°C to +70°C range, while the S, T, and U grades are specified for the -55°C to +125°C range.
- Does the AD574AJPZ meet any military standards?
Yes, certain grades of the AD574AJPZ are available with optional processing to MIL-STD-883C Class B and are also available as JAN QPL.
- What type of logic is used in the AD574AJPZ?
The AD574AJPZ uses I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
- How does the AD574AJPZ minimize offset, linearity, and scaling errors?
The AD574AJPZ minimizes these errors through active laser-trimming of thin-film resistors.
- What is the purpose of the implanted buried Zener diode in the AD574AJPZ?
The implanted buried Zener diode serves as a low noise and low drift voltage reference.
- In what types of applications is the AD574AJPZ commonly used?
The AD574AJPZ is commonly used in industrial control systems, medical devices, aerospace and military systems, high-reliability data acquisition systems, and automotive systems.
- Where can I find detailed specifications and datasheets for the AD574AJPZ?
Detailed specifications and datasheets can be found on the official Analog Devices website, as well as on distributor websites such as Mouser and Digi-Key.
