Overview
The AD674BTD is a complete 12-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD674B series, which offers high precision and performance. The AD674BTD includes a high precision voltage reference and clock on-chip, making it a self-contained solution that requires only power supplies and control signals for operation. It is designed using Analog Devices' BiMOS II process, combining high-performance bipolar analog circuitry with digital CMOS logic on the same die. This design minimizes offset linearity and scaling errors through active trimming of thin-film resistors.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Time | Maximum 15 µs |
| Output Buffer | Three-state output buffer for direct interface to 8- and 16-bit microprocessor busses |
| Temperature Range | -55°C to +125°C (Grade T) |
| Package | 28-pin hermetically sealed ceramic DIP |
| Power Supplies | Required for operation |
| Process Technology | Analog Devices' BiMOS II process |
Key Features
- High precision voltage reference and clock included on-chip.
- Faster conversion time and access speed compared to the AD574A.
- Lower power consumption.
- Pin compatible with the industry standard AD574A.
- Active trimming of thin-film resistors to minimize offset linearity and scaling errors.
- Three-state output buffer for direct interface to microprocessor busses.
Applications
The AD674BTD is suitable for a variety of applications requiring high precision and fast conversion times, such as:
- Data acquisition systems.
- Industrial control systems.
- Medical devices.
- Aerospace and military applications due to its wide temperature range and hermetically sealed package.
Q & A
- What is the resolution of the AD674BTD?
The AD674BTD has a resolution of 12 bits.
- What is the maximum conversion time of the AD674BTD?
The maximum conversion time is 15 µs.
- What type of output buffer does the AD674BTD have?
The AD674BTD has a three-state output buffer for direct interface to 8- and 16-bit microprocessor busses.
- What is the temperature range for the AD674BTD?
The temperature range for the AD674BTD is -55°C to +125°C (Grade T).
- In what package is the AD674BTD available?
The AD674BTD is available in a 28-pin hermetically sealed ceramic DIP package.
- What process technology is used in the AD674BTD?
The AD674BTD is designed using Analog Devices' BiMOS II process.
- Is the AD674BTD pin compatible with other industry standards?
Yes, the AD674BTD is pin compatible with the industry standard AD574A.
- What are the benefits of the active trimming of thin-film resistors in the AD674BTD?
The active trimming of thin-film resistors minimizes offset linearity and scaling errors.
- What are some typical applications for the AD674BTD?
The AD674BTD is suitable for data acquisition systems, industrial control systems, medical devices, and aerospace and military applications.
- Does the AD674BTD include a voltage reference and clock on-chip?
Yes, the AD674BTD includes a high precision voltage reference and clock on-chip.
