Overview
The AD669AN, produced by Analog Devices Inc., is a complete 16-bit monolithic digital-to-analog converter (DAC) known as the DACPORT®. It integrates an on-board voltage reference and an output amplifier on a single IC chip. Manufactured using Analog Devices' BiMOS II process, this device combines low power CMOS logic functions with high precision bipolar linear circuitry. The AD669AN is designed for high stability and precision, making it suitable for a variety of applications requiring accurate voltage output.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Integral Nonlinearity (INL) | ±0.003% (±1 LSB) |
| Differential Nonlinearity (DNL) | ±0.003% (±1 LSB) |
| Output Range | Unipolar: 0 V to +10 V, Bipolar: -10 V to +10 V |
| Output Settling Time | 10 µs to within 1/2 LSB for a full-scale step |
| Reference Voltage | 10.000 V ±0.2% |
| Package Types | 28-pin PDIP, 28-pin SOIC, 28-pin CerDIP |
| Operating Temperature Range | -40°C to +85°C (AN and BN versions), -55°C to +125°C (SQ version) |
| Compatibility | TTL/LSTTL/5 V CMOS compatible signals |
Key Features
- Complete 16-bit D/A function with on-chip output amplifier and voltage reference.
- High stability buried Zener reference laser trimmed to 10.000 volts.
- Double-buffered latches for simultaneous updating of DACs in multi-DAC systems.
- Pin-programmable output range: unipolar (0 V to +10 V) or bipolar (-10 V to +10 V).
- Low glitch and low THD+N (0.009%) for high signal integrity.
- MIL-STD-883 compliant versions available.
- Microprocessor compatible with 16-bit parallel input.
- Fast 40 ns write pulse.
Applications
- Signal generation in various industrial and scientific instruments.
- Aerospace and military applications due to its MIL-STD-883 compliance.
- Automotive and medical devices requiring high precision and reliability.
- Audio and video equipment where low distortion and high signal-to-noise ratio are critical.
- Process control systems and automation.
Q & A
- What is the resolution of the AD669AN DAC?
The AD669AN has a resolution of 16 bits.
- What are the output range options for the AD669AN?
The output range can be set to either unipolar (0 V to +10 V) or bipolar (-10 V to +10 V).
- What is the settling time for the output voltage of the AD669AN?
The output voltage settles within 10 µs to within 1/2 LSB for a full-scale step.
- Is the AD669AN compatible with TTL/LSTTL/5 V CMOS signals?
Yes, the AD669AN is compatible with TTL/LSTTL/5 V CMOS signals.
- What are the operating temperature ranges for the AD669AN?
The operating temperature ranges are -40°C to +85°C for AN and BN versions, and -55°C to +125°C for the SQ version.
- Does the AD669AN have MIL-STD-883 compliant versions?
Yes, the AD669AN has versions that are compliant with MIL-STD-883.
- What is the purpose of the double-buffered latches in the AD669AN?
The double-buffered latches eliminate data skew errors and allow for simultaneous updating of DACs in multi-DAC systems.
- What is the reference voltage of the AD669AN?
The internal buried Zener reference is laser trimmed to 10.000 volts with a ±0.2% maximum error.
- What are the package options for the AD669AN?
The AD669AN is available in 28-pin PDIP, 28-pin SOIC, and 28-pin CerDIP packages.
- What are the typical applications of the AD669AN?
The AD669AN is typically used in signal generation, aerospace, automotive, medical devices, audio and video equipment, and process control systems.
