Overview
The AD667JPZ-REEL, produced by Analog Devices Inc., is a microprocessor-compatible 12-bit digital-to-analog converter (DAC). This component integrates a high stability buried Zener voltage reference and a double-buffered input latch on a single chip. It is designed for high performance and precision, utilizing 12 precision high-speed bipolar current steering switches and a laser-trimmed thin-film resistor network. This configuration ensures fast settling times and high accuracy, making it suitable for a wide range of applications requiring precise analog output.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Logic Levels (TTL Compatible) | VIH: +2.0 to +5.5 V, VIL: 0 to +0.8 V |
| Input Current | IIH: 3 to 10 µA, IIL: 1 to 5 µA |
| Output Voltage Settling Time | 2 to 4 µs |
| Temperature Range | 0°C to +70°C (J and K grades), -25°C to +85°C (A and B grades), -55°C to +125°C (S grade) |
| Package Options | 28-pin Plastic DIP (N), 28-pin PLCC (P), 28-pin Ceramic DIP (D) |
| Linearity Error | ±1/4 LSB (K grade), ±1/2 LSB (J and A grades) at +25°C |
| Gain Temperature Coefficient | 5 ppm/°C (typical full-scale gain TC) |
Key Features
- High stability buried Zener voltage reference for low noise and long-term stability.
- Double-buffered input latch to avoid spurious analog output values and ensure microprocessor compatibility.
- Direct interface to 4-, 8-, 12-, or 16-bit microprocessor buses.
- 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 and package options.
Applications
The AD667JPZ-REEL is suitable for a variety of applications requiring precise digital-to-analog conversion, including:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD667JPZ-REEL?
The AD667JPZ-REEL has a resolution of 12 bits. - What are the logic levels for the digital inputs?
The logic levels are TTL compatible, with VIH (Logic “1”) from +2.0 to +5.5 V and VIL (Logic “0”) from 0 to +0.8 V. - What is the output voltage settling time?
The output voltage settling time is between 2 to 4 µs. - What are the temperature ranges for different grades of the AD667?
The temperature ranges are 0°C to +70°C for J and K grades, -25°C to +85°C for A and B grades, and -55°C to +125°C for the S grade. - What package options are available for the AD667JPZ-REEL?
The component is available in 28-pin Plastic DIP (N), 28-pin PLCC (P), and 28-pin Ceramic DIP (D) packages. - What is the linearity error of the AD667JPZ-REEL?
The linearity error is ±1/4 LSB for the K grade and ±1/2 LSB for the J and A grades at +25°C. - How does the double-buffered input latch work?
The double-buffered input latch allows data to be transferred from the first rank to the second rank, avoiding spurious analog output values and ensuring smooth operation with microprocessors. - What is the gain temperature coefficient of the AD667JPZ-REEL?
The typical full-scale gain temperature coefficient is 5 ppm/°C. - Is the AD667JPZ-REEL guaranteed to be monotonic over its temperature range?
Yes, the AD667JPZ-REEL is guaranteed to be monotonic over its full temperature range. - What are some common applications of the AD667JPZ-REEL?
Common applications include industrial control systems, medical devices, aerospace and defense systems, automotive systems, and test and measurement equipment.
