Overview
The AD664KPZ, produced by Analog Devices Inc., is a monolithic 12-bit quad digital-to-analog converter (DAC) integrated circuit. This device integrates four complete 12-bit, voltage-output DACs on a single IC chip, each featuring a double-buffered input latch structure and a data readback function. The AD664KPZ is designed to provide high-density 12-bit DAC functionality, making it suitable for a variety of applications requiring precise analog output control.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 | 12 | 12 | Bits |
| Analog Output Voltage Range (UNI Versions) | 0 | VCC - 2.02 | VCC - 2.02 | V |
| Analog Output Voltage Range (BIP Versions) | VEE + 2.02 | VCC - 2.02 | VEE + 2.02 | V |
| Output Current | 5 | 5 | mA | |
| Load Resistance | 2 | 2 | kΩ | |
| Load Capacitance | 500 | 500 | pF | |
| Short-Circuit Current | 25 | 40 | mA | |
| Gain Error (UNI) | -7 | ±3 | +7 | LSB |
| Offset Error (UNI) | -2 | ±1/2 | +2 | LSB |
| Zero Error (BIP) | -3 | ±3/4 | +3 | LSB |
| Linearity Error | -3/4 | ±1/2 | +3/4 | LSB |
| Temperature Range (KP Grade) | 0 | 70 | °C |
Key Features
- Four complete 12-bit, voltage-output DACs on one monolithic IC chip.
- Double-buffered input latch structure and data readback function.
- Microprocessor-compatible I/O port supporting 4-bit, 8-bit, or 12-bit parallel words.
- Reset to zero control pin to reset all DAC outputs to zero.
- Transparent mode allowing immediate response by the outputs to the input data.
- Programmable output range: unipolar (UNI) or bipolar (BIP) with a gain of one or two times the reference voltage.
- Multiplying-mode operation with fixed or variable, positive or negative external references.
- DAC-to-DAC matching performance specified and tested.
- Linearity error specified to be 1/2 LSB at room temperature and 3/4 LSB maximum for the K, B, and T grades.
- Available in versions compliant with MIL-STD-883.
Applications
- Automatic Test Equipment
- Robotics
- Process Control
- Disk Drives
- Instrumentation
- Avionics
Q & A
- What is the resolution of the AD664KPZ DACs?
The AD664KPZ features four 12-bit DACs.
- What types of output ranges can be programmed for the DACs?
The output range of each DAC can be set to unipolar (UNI) or bipolar (BIP) with a gain of one or two times the reference voltage.
- How do the DACs interface with microprocessors?
The DACs interface through a microprocessor-compatible I/O port that accommodates 4-bit, 8-bit, or 12-bit parallel words.
- What is the purpose of the reset to zero control pin?
The reset to zero control pin allows the user to simultaneously reset all DAC outputs to zero, regardless of the contents of the input latch.
- Can the DACs operate in transparent mode?
Yes, any one or all of the DACs can be placed in a transparent mode, allowing immediate response by the outputs to the input data.
- What is the significance of the data readback function?
The data readback function allows verification of the contents of the internal data registers.
- Are there any military-grade versions of the AD664KPZ available?
Yes, versions of the AD664 are available that are compliant with MIL-STD-883.
- What is the temperature range for the KP grade of the AD664?
The temperature range for the KP grade is 0°C to 70°C.
- What types of packages are available for the AD664KPZ?
The AD664 is available in various packages, including 44-lead PLCC and 28-lead DIP.
- What is the linearity error specification for the AD664KPZ?
The linearity error is specified to be 1/2 LSB at room temperature and 3/4 LSB maximum for the K, B, and T grades.
