Overview
The AD664TD-BIP/883B is a monolithic 12-bit quad digital-to-analog converter (DAC) produced by Analog Devices Inc. This component 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 device is designed for high-density applications and offers flexible interfacing with various microprocessors through a single microprocessor-compatible input/output (I/O) port that supports 4-bit, 8-bit, or 12-bit parallel words.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 | 12 | 12 | Bits |
| Analog Output Voltage Range (BIP Versions) | VEE + 2.02 | VCC - 2.02 | V | |
| Output Current | 5 | mA | ||
| Load Resistance | 2 | kΩ | ||
| Load Capacitance | 500 | pF | ||
| Short-Circuit Current | 25 | 40 | mA | |
| Gain Error (UNI) | -7 | ±3 | +7 | LSB |
| Offset Error (UNI) | -2 | ±1/2 | +2 | LSB |
| Linearity Error | -3/4 | ±1/2 | +3/4 | LSB |
| Temperature Range | -55 | +125 | °C |
Key Features
- Four complete 12-bit, voltage-output DACs on one monolithic IC chip.
- Double buffered input latch structure and data readback function.
- Single microprocessor-compatible input/output (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.
- Output range programmable to unipolar (UNI) or bipolar (BIP) with a gain of one or two times the reference voltage.
- DAC to DAC matching performance specified and tested.
- High linearity and accuracy with specified linearity error of 1/2 LSB at room temperature and 3/4 LSB maximum for the K, B, and T grades.
Applications
- Process control systems.
- Disk drives.
- Instrumentation.
- Avionics.
Q & A
- What is the resolution of the AD664TD-BIP/883B DAC?
The AD664TD-BIP/883B has a resolution of 12 bits.
- How many DACs are integrated on the AD664TD-BIP/883B chip?
The AD664TD-BIP/883B integrates four complete 12-bit DACs on one chip.
- What types of output voltage ranges can be programmed for the AD664TD-BIP/883B?
The output voltage range can be programmed to unipolar (UNI) or bipolar (BIP) with a gain of one or two times the reference voltage.
- What is the temperature range for the AD664TD-BIP/883B?
The temperature range for the AD664TD-BIP/883B is from -55°C to +125°C.
- Does the AD664TD-BIP/883B support data readback?
- How can the DAC outputs be reset on the AD664TD-BIP/883B?
The DAC outputs can be reset to zero using the reset to zero control pin.
- What is the load resistance and capacitance for the AD664TD-BIP/883B?
The load resistance is 2 kΩ and the load capacitance is 500 pF.
- What are the typical applications of the AD664TD-BIP/883B?
The AD664TD-BIP/883B is typically used in process control systems, disk drives, instrumentation, and avionics.
- How does the AD664TD-BIP/883B interface with microprocessors?
The AD664TD-BIP/883B interfaces with microprocessors through a single microprocessor-compatible input/output (I/O) port that supports 4-bit, 8-bit, or 12-bit parallel words.
- What is the linearity error specification for the AD664TD-BIP/883B?
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.
