Overview
The AD664AD-BIP, produced by Analog Devices Inc., is a monolithic 12-bit quad digital-to-analog converter (DAC) integrated circuit. This device features four complete 12-bit, voltage-output DACs on a single IC chip, each with a double-buffered input latch structure and a data readback function. The AD664AD-BIP 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 | -40 | +85 | °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 for each DAC cell: unipolar (UNI) or bipolar (BIP) with a gain of one or two times the reference voltage.
- DAC-to-DAC matching performance and linearity error specified and tested.
- Multiplying-mode operation with fixed or variable, positive or negative external references.
- 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 AD664AD-BIP DAC?
The AD664AD-BIP has a resolution of 12 bits.
- What types of output ranges can be programmed for each DAC cell?
The output range of each DAC cell can be programmed to unipolar (UNI) or bipolar (BIP) with a gain of one or two times the reference voltage.
- How do the DAC read and write operations occur?
All DAC read and write operations occur through a single 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 be placed in a transparent mode?
Yes, any one or all of the DACs may 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.
- Is the AD664AD-BIP compliant with any military standards?
Yes, the AD664AD-BIP is available in versions compliant with MIL-STD-883.
- What are the typical operating temperature ranges for the AD664AD-BIP?
The typical operating temperature range for the AD664AD-BIP is -40°C to +85°C.
- What is the linearity error specification for the AD664AD-BIP?
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.
- What types of packages are available for the AD664AD-BIP?
The AD664AD-BIP is available in surface mount and DIP packages.
