Overview
The AD574ALD 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 in various applications. The AD574ALD 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 employs I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 1 Channel |
| Interface Type | Parallel |
| Input Type | Single-Ended |
| Architecture | SAR (Successive Approximation Register) |
| Analog Supply Voltage | 11.4 V to 16.5 V |
| Digital Supply Voltage | 5 V |
| Minimum Operating Temperature | -55°C |
| Maximum Operating Temperature | +125°C |
| Integral Nonlinearity (INL) | ±0.5 LSB |
| Input Voltage Range | 10 V/20 V, ±5 V/±10 V |
| Package Type | 28-Lead Side-Brazed CerDIP |
| Power Dissipation | 725 mW |
| Power Consumption | 390 mW |
Key Features
- High Precision: The AD574ALD features high precision with minimized offset, linearity, and scaling errors due to active laser-trimming of thin-film resistors.
- Low Noise and Drift: The voltage reference uses an implanted buried Zener, ensuring low noise and low drift.
- Robust Temperature Range: The device is specified for operation over a wide temperature range of -55°C to +125°C.
- Multiple Package Options: Available in 28-pin hermetically-sealed ceramic DIP, plastic DIP, and PLCC packages.
- Military Grade Options: Certain grades are available with optional processing to MIL-STD-883C Class B and JAN QPL certification.
- Parallel Interface: The ADC features a parallel interface for easy integration into various systems.
Applications
- Industrial Automation: The AD574ALD is suitable for industrial automation and control systems due to its high precision and robust temperature range.
- Military and Aerospace: With its military-grade options, this ADC is ideal for military and aerospace applications requiring high reliability.
- Medical Devices: The high precision and low noise characteristics make it suitable for medical devices that require accurate data conversion.
- Test and Measurement Equipment: The AD574ALD can be used in various test and measurement equipment where high accuracy is crucial.
Q & A
- What is the resolution of the AD574ALD ADC?
The AD574ALD has a resolution of 12 bits.
- What is the operating temperature range of the AD574ALD?
The operating temperature range is from -55°C to +125°C.
- What types of packages are available for the AD574ALD?
The AD574ALD is available in 28-pin hermetically-sealed ceramic DIP, plastic DIP, and PLCC packages.
- Does the AD574ALD have military-grade options?
- What is the analog supply voltage range for the AD574ALD?
The analog supply voltage range is from 11.4 V to 16.5 V.
- What is the digital supply voltage for the AD574ALD?
The digital supply voltage is 5 V.
- What is the integral nonlinearity (INL) of the AD574ALD?
The INL is ±0.5 LSB.
- What is the power dissipation of the AD574ALD?
The power dissipation is 725 mW.
- What is the power consumption of the AD574ALD?
The power consumption is 390 mW.
- What type of interface does the AD574ALD use?
The AD574ALD uses a parallel interface.
