Overview
The AD558SD/883B, produced by Analog Devices Inc., is a complete voltage-output 8-bit digital-to-analog converter (DAC) integrated into a single monolithic chip. This device includes an output amplifier, a full microprocessor interface, and a precision voltage reference. The AD558 is designed to interface directly with an 8-bit data bus to an analog system without requiring external components or trims for full accuracy. It is part of the DACPORT series, known for its low cost and comprehensive microprocessor compatibility.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8 bits |
| Relative Accuracy (0°C to +70°C) | ±1/2 LSB |
| Relative Accuracy (-55°C to +125°C) | ±3/4 LSB |
| Output Ranges | 0 to +2.56 V, 0 to +10 V |
| Output Settling Time (0 to 2.56 V range) | 0.8 µs |
| Output Settling Time (0 to 10 V range) | 2.0 µs |
| Power Supply Voltage | +5 V to +15 V (for 0 to 2.56 V range), +11.4 V to +16.5 V (for 0 to 10 V range) |
| Package Type | 16-pin hermetic ceramic DIP |
| Operating Temperature Range | -55°C to +125°C |
Key Features
- Complete DAC Solution: Includes output amplifier, full microprocessor interface, and precision voltage reference on a single chip.
- No External Components Required: Direct interface with an 8-bit data bus without needing external components or trims.
- Precision and Stability: Uses thin-film silicon-chromium resistors for guaranteed monotonic operation and absolute calibration at the factory to within ±1 LSB.
- High Speed and Accuracy: Voltage settling to ±1/2 LSB for a full-scale step in 800 ns for the 0 to 2.56 V range.
- Military Grade Options: Available in grades specified for -55°C to +125°C operation and screened to MIL-STD-883 Class B.
- Flexible Output Ranges: Supports output ranges of 0 to +2.56 V and 0 to +10 V with user-selectable gain.
Applications
- Industrial Control Systems: Suitable for applications requiring precise analog output control in industrial environments.
- Military and Aerospace: Designed to meet the rigorous requirements of military and aerospace applications, including extreme temperatures and mechanical stress.
- Medical Devices: Can be used in medical equipment where high accuracy and reliability are crucial.
- Automotive Systems: Applicable in automotive systems that require reliable and accurate analog output.
Q & A
- What is the resolution of the AD558SD/883B DAC?
The AD558SD/883B has an 8-bit resolution.
- What are the output voltage ranges of the AD558SD/883B?
The output voltage ranges are 0 to +2.56 V and 0 to +10 V.
- What is the operating temperature range for the AD558SD/883B?
The operating temperature range is -55°C to +125°C.
- Does the AD558SD/883B require external components for operation?
No, the AD558SD/883B does not require external components or trims for full accuracy.
- What is the settling time for the AD558SD/883B?
The settling time is 0.8 µs for the 0 to 2.56 V range and 2.0 µs for the 0 to 10 V range.
- Is the AD558SD/883B suitable for military applications?
- What type of package is the AD558SD/883B available in?
The AD558SD/883B is available in a 16-pin hermetic ceramic DIP package.
- What is the power supply voltage requirement for the AD558SD/883B?
The power supply voltage must be between +5 V to +15 V for the 0 to 2.56 V range, and +11.4 V to +16.5 V for the 0 to 10 V range.
- How does the AD558SD/883B ensure precision and stability?
- What is the significance of the DACPORT trademark in relation to the AD558SD/883B?
