Overview
The AD774BTD/883B from Analog Devices Inc. is a high-performance 12-bit successive approximation analog-to-digital converter (ADC). This component is part of the AD774B series, which is known for its precision and speed. The AD774BTD/883B is designed to offer fast conversion times, low power consumption, and high accuracy, making it suitable for a variety of data acquisition applications. It is pin compatible with the industry-standard AD574A but offers improved performance characteristics such as faster conversion times and lower power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Conversion Time | 8 µs (maximum) | |
| Temperature Range | -55°C to +125°C | |
| Package Type | 28-lead hermetically sealed ceramic DIP | |
| Power Supplies | Required for operation | |
| Output Buffer | Three-state output buffer circuitry | |
| Compatibility | Pin compatible with AD574A |
Key Features
- High Precision: The AD774BTD/883B features high precision voltage reference and clock included on-chip, ensuring accurate conversions.
- Fast Conversion Time: With a maximum conversion time of 8 µs, this ADC is suitable for high-speed data acquisition applications.
- Low Power Consumption: Designed to consume less power compared to similar models, making it energy-efficient.
- Wide Temperature Range: Operates over a temperature range of -55°C to +125°C, making it versatile for various environments.
- Three-State Output Buffer: Allows for direct interface to 8- and 16-bit microprocessor buses.
- Active Trimming: Offset linearity and scaling errors are minimized by active trimming of thin-film resistors.
Applications
- Data Acquisition Systems: Ideal for high-performance data acquisition applications requiring precision and speed.
- Industrial Control Systems: Suitable for industrial environments due to its wide temperature range and robust design.
- Medical Devices: Can be used in medical devices that require accurate and fast analog-to-digital conversions.
- Aerospace and Military: The -55°C to +125°C temperature range and hermetically sealed package make it suitable for aerospace and military applications.
Q & A
- What is the resolution of the AD774BTD/883B ADC?
The AD774BTD/883B has a 12-bit resolution.
- What is the maximum conversion time of the AD774BTD/883B?
The maximum conversion time is 8 µs.
- What is the temperature range of the AD774BTD/883B?
The temperature range is -55°C to +125°C.
- What type of package does the AD774BTD/883B come in?
The AD774BTD/883B comes in a 28-lead hermetically sealed ceramic DIP package.
- Is the AD774BTD/883B pin compatible with other ADC models?
Yes, it is pin compatible with the AD574A.
- What are the key features of the AD774BTD/883B's output buffer?
The output buffer is a three-state output buffer circuitry, allowing direct interface to 8- and 16-bit microprocessor buses.
- How does the AD774BTD/883B minimize offset linearity and scaling errors?
Offset linearity and scaling errors are minimized by active trimming of thin-film resistors.
- What are some typical applications of the AD774BTD/883B?
Typical applications include data acquisition systems, industrial control systems, medical devices, and aerospace and military applications.
- Does the AD774BTD/883B require any external components for operation?
The AD774BTD/883B requires only power supplies and control signals for operation.
- What is the manufacturing process used for the AD774BTD/883B?
The monolithic design is implemented using Analog Devices' BiMOS II process, combining high-performance bipolar analog circuitry with digital CMOS logic.
