Overview
The AD574AKPZ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This integrated circuit is part of the AD574A family, which is known for its high precision and reliability. The AD574AKPZ 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 at the wafer stage. The voltage reference is based on an implanted buried Zener, ensuring 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 |
|---|---|
| Resolution | 12 bits |
| Input Type | Single-ended |
| Conversion Method | Successive Approximation Register (SAR) |
| Temperature Range | 0°C to +70°C (Grade K) |
| Package Type | 28-lead PLCC (11.51x11.51 mm) |
| Voltage Reference | Implanted buried Zener for low noise and low drift |
| Logic Type | I2L logic |
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 based on an implanted buried Zener.
- I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
- Available in various 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
- Industrial control systems requiring high precision and reliability.
- Medical devices that demand low noise and low drift analog-to-digital conversion.
- Military and aerospace applications where the device must meet stringent temperature and reliability standards.
- Data acquisition systems in various fields such as scientific research, automotive, and consumer electronics.
Q & A
- What is the resolution of the AD574AKPZ?
The AD574AKPZ has a resolution of 12 bits.
- What is the temperature range for the AD574AKPZ?
The AD574AKPZ operates over a temperature range of 0°C to +70°C.
- What type of package does the AD574AKPZ come in?
The AD574AKPZ is available in a 28-lead PLCC package.
- What is the conversion method used by the AD574AKPZ?
The AD574AKPZ uses the Successive Approximation Register (SAR) conversion method.
- What type of logic is used in the AD574AKPZ?
The AD574AKPZ uses I2L logic for its digital circuitry.
- Is the AD574AKPZ suitable for military applications?
Yes, certain grades of the AD574A family, including those with optional processing to MIL-STD-883C Class B and JAN QPL, are suitable for military applications.
- What is the significance of the implanted buried Zener in the AD574AKPZ?
The implanted buried Zener provides a low noise and low drift voltage reference, enhancing the overall precision of the ADC.
- Can the AD574AKPZ be used in medical devices?
Yes, the AD574AKPZ can be used in medical devices due to its high precision, low noise, and reliability.
- What are the typical applications of the AD574AKPZ?
The AD574AKPZ is typically used in industrial control systems, medical devices, military and aerospace applications, and data acquisition systems.
- How does the AD574AKPZ minimize errors?
The AD574AKPZ minimizes offset, linearity, and scaling errors through active laser-trimming of thin-film resistors at the wafer stage.
