Overview
The AD574ATD/883B is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD574A series, which integrates all analog and digital functions on a single chip. The AD574ATD/883B is designed using 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 side utilizes I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
This ADC is available in various packages, including a 28-pin hermetically-sealed ceramic DIP, and is specified for operation over a temperature range of -55°C to +125°C, making it suitable for military and aerospace applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Architecture | Successive Approximation (SAR) |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Data Interface | Parallel |
| Reference Type | Internal |
| Analog Supply Voltage | ±11.4 V to ±16.5 V |
| Digital Supply Voltage | 5 V |
| Operating Temperature | -55°C to +125°C |
| Package | 28-Pin CerDIP (Side Brazed) |
| Integral Nonlinearity (INL) | 1 LSB |
Key Features
- High Accuracy: The AD574ATD/883B features high accuracy with minimal offset, linearity, and scaling errors due to active laser-trimming of thin-film resistors.
- Low Noise and Drift: The voltage reference is based on an implanted buried Zener diode, ensuring low noise and low drift.
- Robust Temperature Range: Specified for operation over a wide temperature range of -55°C to +125°C, making it suitable for harsh environments.
- Military and Aerospace Compliance: Available with optional processing to MIL-STD-883C Class B and JAN QPL certification.
- Reliable Digital Interface: Utilizes I2L logic for the successive-approximation register, control circuitry, and 3-state output buffers.
Applications
- Military and Aerospace: The AD574ATD/883B is particularly suited for military and aerospace applications due to its robust temperature range and compliance with military standards.
- Industrial Automation: Its high accuracy and reliability make it a good choice for industrial automation systems that require precise analog-to-digital conversion.
- Medical Devices: The component's low noise and drift characteristics are beneficial in medical devices where precise measurements are critical.
- Test and Measurement Equipment: Suitable for use in test and measurement equipment that require high accuracy and stability.
Q & A
- What is the resolution of the AD574ATD/883B ADC?
The AD574ATD/883B has a resolution of 12 bits.
- What is the architecture of the AD574ATD/883B ADC?
The AD574ATD/883B uses a Successive Approximation (SAR) architecture.
- What is the operating temperature range of the AD574ATD/883B?
The operating temperature range is -55°C to +125°C.
- What type of package is the AD574ATD/883B available in?
The AD574ATD/883B is available in a 28-pin hermetically-sealed ceramic DIP package.
- Is the AD574ATD/883B compliant with military standards?
Yes, it is available with optional processing to MIL-STD-883C Class B and JAN QPL certification.
- What is the analog supply voltage range for the AD574ATD/883B?
The analog supply voltage range is ±11.4 V to ±16.5 V.
- What is the digital supply voltage for the AD574ATD/883B?
The digital supply voltage is 5 V.
- What is the data interface type of the AD574ATD/883B?
The data interface is parallel.
- What is the reference type used in the AD574ATD/883B?
The reference type is internal.
- What is the integral nonlinearity (INL) of the AD574ATD/883B?
The integral nonlinearity (INL) is 1 LSB.
