Overview
The AD767SD/883B is a microprocessor-compatible 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component integrates a high-stability buried Zener reference and an input latch on a single chip, making it a complete voltage output DAC. The AD767SD/883B is designed for high accuracy and reliability, utilizing 12 precision high-speed bipolar current steering switches and a laser-trimmed thin-film resistor network. It is particularly suited for applications requiring wide temperature range performance and high precision.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Resolution | 12 bits | |
| Temperature Range | –55°C to +125°C | MIL-STD-883 compliant |
| Linearity Error | ±½ LSB | Maximum over full temperature range |
| Gain Drift | 5 ppm/°C | Typical full-scale gain drift |
| Output Voltage Settling Time | 2-4 µs | Referenced to the leading edge of tCS |
| CS Pulse Width | 40 ns (min) | For –25°C to +85°C range |
| Package Types | 24-Lead Side-Brazed CerDIP |
Key Features
- High Accuracy and Linearity: The AD767SD/883B features high accuracy with a maximum linearity error of ±½ LSB over the full temperature range and guaranteed monotonicity.
- Microprocessor Compatibility: The on-chip latch allows for direct interface to 12-bit buses, supporting high-speed microprocessors such as the 68000, 8086, TMS320 series, and ADSP-2100.
- Low Noise Reference: The subsurface (buried) Zener diode provides a low-noise voltage reference with long-term stability and temperature drift characteristics comparable to the best discrete reference diodes.
- Wide Temperature Range Performance: The component is designed to operate over a wide temperature range of –55°C to +125°C, making it suitable for various industrial and military applications.
Applications
- Aerospace and Defense: The AD767SD/883B is compliant with MIL-STD-883, making it suitable for military and aerospace applications where high reliability and wide temperature range performance are critical.
- Industrial Automation: Its high accuracy and stability make it ideal for industrial automation systems that require precise control and reliable operation over a wide temperature range.
- Medical Equipment: The component's high precision and reliability also make it suitable for medical equipment where accurate and stable analog output is essential.
Q & A
- What is the resolution of the AD767SD/883B DAC?
The AD767SD/883B has a resolution of 12 bits.
- What is the operating temperature range of the AD767SD/883B?
The operating temperature range is –55°C to +125°C.
- What is the maximum linearity error of the AD767SD/883B?
The maximum linearity error is ±½ LSB over the full temperature range.
- How does the AD767SD/883B achieve microprocessor compatibility?
The on-chip latch allows for direct interface to 12-bit buses, supporting high-speed microprocessors.
- What type of voltage reference does the AD767SD/883B use?
The component uses a subsurface (buried) Zener diode as its voltage reference.
- What is the typical full-scale gain drift of the AD767SD/883B?
The typical full-scale gain drift is 5 ppm/°C.
- What is the minimum CS pulse width for the AD767SD/883B?
The minimum CS pulse width is 40 ns for the –25°C to +85°C range.
- In what package types is the AD767SD/883B available?
The AD767SD/883B is available in a 24-Lead Side-Brazed CerDIP package.
- Is the AD767SD/883B compliant with any military standards?
Yes, it is compliant with MIL-STD-883.
- What are some typical applications of the AD767SD/883B?
Typical applications include aerospace, defense, industrial automation, and medical equipment.
