Overview
The AD567JD, produced by Analog Devices Inc., is a high-speed 12-bit digital-to-analog converter (DAC) designed for microprocessor compatibility. This device integrates a high stability buried zener voltage reference and a double buffer input latch on a single chip. It utilizes 12 precision high-speed bipolar current steering switches and a laser-trimmed thin-film resistor network to ensure fast settling times and high accuracy. The AD567JD is well-suited for applications requiring precise analog output from digital inputs, particularly in environments where temperature stability and monotonicity are crucial.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 bits | |
| Linearity Error (K grade) | ±1/4 LSB at 25°C, ±1/2 LSB over full temperature range | |
| Temperature Range | 0 to 70°C (J and K grades), -55°C to +125°C (S grade) | |
| Package Type | 28-pin hermetically sealed ceramic DIP, 28-pin molded plastic DIP (N Package) | |
| Input Latch | Double-buffered, responds to strobe pulses as short as 100 ns | |
| Voltage Reference | High stability buried zener diode | |
| Settling Time | Fast settling time due to high-speed bipolar manufacturing process | |
| Full Scale Gain T.C. | 10 ppm/°C |
Key Features
- High-speed 12-bit digital-to-analog conversion with microprocessor compatibility.
- Double-buffered input latch allowing direct interface to 4-, 8-, 12-, or 16-bit buses.
- High stability buried zener voltage reference with long-term stability and low temperature drift.
- Laser-trimmed thin-film resistor network for high accuracy and fast settling times.
- Guaranteed monotonicity over the full temperature range.
- Available in various performance grades (J, K, S) with different temperature ranges.
Applications
- Digital potentiometer emulation: Providing digitally controlled variable resistances in circuits.
- Video processing: Converting digital video signals into analog signals for display and transmission.
- Test and measurement: Used in equipment such as oscilloscopes, spectrum analyzers, and signal generators.
- Industrial control: Converting digital control signals into analog signals for driving and controlling devices.
- LED drivers: Controlling the intensity and color of LEDs in various lighting systems.
Q & A
- What is the resolution of the AD567JD?
The AD567JD has a resolution of 12 bits. - What is the temperature range for the AD567JD?
The temperature range for the J and K grades is 0 to 70°C, and for the S grade, it is -55°C to +125°C. - What type of voltage reference does the AD567JD use?
The AD567JD uses a high stability buried zener voltage reference. - How does the input latch of the AD567JD work?
The input latch is double-buffered and can respond to strobe pulses as short as 100 ns, allowing direct interface to 4-, 8-, 12-, or 16-bit buses. - What is the settling time of the AD567JD?
The settling time is fast due to the high-speed bipolar manufacturing process and laser-trimmed thin-film resistor network. - Is the AD567JD guaranteed to be monotonic?
Yes, the AD567JD is guaranteed to be monotonic over the full temperature range. - What are the typical applications of the AD567JD?
Typical applications include digital potentiometer emulation, video processing, test and measurement, industrial control, and LED drivers. - What package types are available for the AD567JD?
The AD567JD is available in 28-pin hermetically sealed ceramic DIP and 28-pin molded plastic DIP (N Package). - What is the full scale gain temperature coefficient of the AD567JD?
The full scale gain temperature coefficient is 10 ppm/°C. - How accurate is the linearity of the AD567JD?
The linearity error is ±1/4 LSB at 25°C and ±1/2 LSB over the full temperature range for the K grade.
