Overview
The AD669AR is a complete 16-bit monolithic D/A converter produced by Analog Devices Inc. It features an on-board voltage reference and output amplifier, making it a versatile component for various analog signal processing applications. The AD669AR is manufactured using Analog Devices' BiMOS II process, which allows the integration of low power CMOS logic functions and high precision bipolar linear circuitry on the same chip. This device includes current switches, decoding logic, an output amplifier, a buried Zener reference, and double-buffered latches, ensuring high accuracy and reliability.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Output Range | Unipolar: 0 V to +10 V, Bipolar: -10 V to +10 V |
| Integral Nonlinearity (INL) | ±0.003% max |
| Differential Nonlinearity (DNL) | ±0.003% max |
| Settling Time | 10 µs to within 1/2 LSB for a full-scale step |
| Reference Voltage | 10.000 V ±0.2% max |
| Temperature Range | -40°C to +85°C (AN, AR, BN, BR versions), -55°C to +125°C (SQ version) |
| Package Options | 28-pin plastic DIP, 28-pin SOIC, 28-pin hermetic cerdip |
| Compliance | MIL-STD-883 compliant versions available |
Key Features
- On-chip voltage reference and output amplifier
- Double-buffered latch structure to eliminate data skew errors and allow 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)
- High accuracy: ±0.003% INL and DNL
- Fast settling time: 10 µs to within 1/2 LSB for a full-scale step
- TTL/LSTTL/5 V CMOS compatible control signals (CS, L1, LDAC)
- MIL-STD-883 compliant versions available for high reliability applications
Applications
- Signal generation in various industrial and medical devices
- Analog signal processing in audio and video equipment
- Control systems requiring high precision analog outputs
- Aerospace and defense applications due to MIL-STD-883 compliance
- Automotive and industrial control systems where high accuracy and reliability are crucial
Q & A
- What is the resolution of the AD669AR D/A converter?
The AD669AR has a resolution of 16 bits.
- What are the available output ranges for the AD669AR?
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 of the AD669AR for a full-scale step?
The settling time is 10 µs to within 1/2 LSB for a full-scale step.
- Is the AD669AR compliant with any military standards?
- What types of packages are available for the AD669AR?
The AD669AR is available in 28-pin plastic DIP, 28-pin SOIC, and 28-pin hermetic cerdip packages.
- What is the temperature range for the different versions of the AD669AR?
The AN, AR, BN, and BR versions operate from -40°C to +85°C, while the SQ version operates from -55°C to +125°C.
- How is the data loaded into the AD669AR?
Data is loaded in a parallel 16-bit format.
- What are the control signals for the latches in the AD669AR?
The control signals are CS, L1, and LDAC, which are TTL/LSTTL/5 V CMOS compatible.
- What is the purpose of the double-buffered latch structure in the AD669AR?
The double-buffered latch structure eliminates data skew errors and allows for simultaneous updating of DACs in multi-DAC systems.
- What is the reference voltage of the AD669AR?
The internal buried Zener reference is laser trimmed to 10.000 volts with a ±0.2% maximum error.
