Overview
The AD767JPZ is a microprocessor-compatible 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is part of the AD767 series, known for its high performance and precision. The AD767JPZ features a high stability buried Zener reference and an input latch on a single chip, making it suitable for a wide range of applications requiring accurate and reliable digital-to-analog conversion.
The converter utilizes 12 precision high-speed bipolar current steering switches and a laser-trimmed thin-film resistor network to ensure high accuracy and linearity. The on-chip latch allows for direct interface to 12-bit buses, supporting the fastest available microprocessors with a minimum CS pulse width of 40 ns.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 | Bits |
| Logic Levels (TTL Compatible) | VIH (Logic '1'): 2.0 to 5.5 V, VIL (Logic '0'): 0 to 0.8 V | V |
| Input Current | IIH (VIH = 5.5 V): 3 to 10 µA, IIL (VIL = 0.8 V): 1 to 5 µA | µA |
| Linearity Error @ +25°C | ±½ LSB | LSB |
| Supply Voltage | ±11.4 to ±16.5 V | V |
| Supply Current | 9 to 13 mA (Analog), 18 to 23 mA (Digital) | mA |
| Total Power Consumption | 400 to 600 mW | mW |
| Operating Temperature Range | 0 to +70 °C | °C |
| Settling Time | 4 µs | µs |
| Package | 28-Lead PLCC (J-Lead) | - |
Key Features
- High Accuracy and Linearity: The AD767JPZ uses 12 precision high-speed bipolar current steering switches and a laser-trimmed thin-film resistor network to provide high accuracy and linearity, with a maximum linearity error of ±½ LSB.
- Microprocessor Compatibility: The device features an on-chip latch that allows direct interface to 12-bit buses, supporting fast microprocessors with a minimum CS pulse width of 40 ns.
- Low Noise Voltage 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: Guaranteed monotonicity over the full temperature range with minimal gain and offset drift due to thermal tracking of the scaling resistors.
- Fast Settling Time: The output voltage settling time is 4 µs, making it suitable for high-speed applications.
Applications
- Industrial Control Systems: The AD767JPZ is used in industrial control systems where precise and reliable digital-to-analog conversion is required.
- Medical Equipment: It is suitable for medical devices that need accurate and stable analog outputs.
- Aerospace and Defense: The device's high reliability and performance make it a good choice for aerospace and defense applications.
- Automotive Systems: It can be used in automotive systems that require high precision and reliability in digital-to-analog conversion.
- Test and Measurement Equipment: The AD767JPZ is also used in test and measurement equipment where high accuracy and linearity are essential.
Q & A
- What is the resolution of the AD767JPZ?
The AD767JPZ has a resolution of 12 bits.
- What is the typical supply voltage range for the AD767JPZ?
The typical supply voltage range is ±11.4 to ±16.5 V.
- What is the settling time of the AD767JPZ?
The output voltage settling time is 4 µs.
- Is the AD767JPZ microprocessor-compatible?
Yes, it is microprocessor-compatible with a minimum CS pulse width of 40 ns.
- What is the operating temperature range of the AD767JPZ?
The operating temperature range is 0 to +70 °C.
- What type of voltage reference does the AD767JPZ use?
The AD767JPZ uses a subsurface (buried) Zener diode as its voltage reference.
- What is the maximum linearity error of the AD767JPZ?
The maximum linearity error is ±½ LSB.
- What is the package type of the AD767JPZ?
The package type is 28-Lead PLCC (J-Lead).
- Is the AD767JPZ suitable for high-speed applications?
Yes, it is suitable for high-speed applications due to its fast settling time and microprocessor compatibility.
- What are some common applications of the AD767JPZ?
Common applications include industrial control systems, medical equipment, aerospace and defense, automotive systems, and test and measurement equipment.
