Overview
The AD574AJNZ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This integrated circuit is part of the AD574A series, which is known for its high precision and reliability. The AD574AJNZ 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 diode, 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
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Temperature Range | 0°C to +70°C |
| Package Type | 28-Lead PDIP |
| Voltage Reference | Implanted buried Zener diode |
| Logic Type | I2L logic |
| Output Buffers | 3-state output buffers |
Key Features
- High precision 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 successive-approximation register, control circuitry, and 3-state output buffers.
- Available in various package types including 28-pin hermetically-sealed ceramic DIP, plastic DIP, PLCC, and ceramic LCC.
- Optional processing to MIL-STD-883C Class B for certain grades).
Applications
- Data acquisition systems requiring high precision and reliability.
- Industrial control systems where accurate analog-to-digital conversion is crucial.
- Military and aerospace applications due to its availability in grades compliant with MIL-STD-883C Class B and JAN QPL).
- Medical devices and instrumentation where precision and low noise are essential.
Q & A
- What is the resolution of the AD574AJNZ?
The AD574AJNZ has a resolution of 12 bits).
- What is the temperature range for the AD574AJNZ?
The AD574AJNZ operates over a temperature range of 0°C to +70°C).
- What type of package is the AD574AJNZ available in?
The AD574AJNZ is available in a 28-Lead PDIP package).
- How does the AD574AJNZ minimize offset and linearity errors?
The AD574AJNZ minimizes offset, linearity, and scaling errors through active laser-trimming of thin-film resistors at the wafer stage).
- What type of logic is used in the AD574AJNZ for digital functions?
The AD574AJNZ uses I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers).
- Is the AD574AJNZ suitable for military applications?
Yes, certain grades of the AD574A series, including those with optional processing to MIL-STD-883C Class B, are suitable for military applications).
- What is the purpose of the implanted buried Zener diode in the AD574AJNZ?
The implanted buried Zener diode serves as a low noise and low drift voltage reference).
- Can the AD574AJNZ be used in industrial control systems?
Yes, the AD574AJNZ is suitable for industrial control systems due to its high precision and reliability).
- Are there different grades of the AD574A available?
Yes, the AD574A is available in several grades with different temperature ranges and package options).
- Where can I find detailed documentation and support for the AD574AJNZ?
Detailed documentation and support can be found on the Analog Devices Support Portal and through their knowledge database).
