Overview
The AD669AR-REEL, produced by Analog Devices Inc., is a complete 16-bit monolithic D/A converter known as the DACPORT®. This device integrates a voltage reference and an output amplifier on a single IC chip, manufactured using Analog Devices' BiMOS II process. This process enables the fabrication of low power CMOS logic functions alongside high precision bipolar linear circuitry. The AD669AR-REEL includes current switches, decoding logic, an output amplifier, a buried Zener reference, and double-buffered latches, ensuring high precision and reliability in digital-to-analog conversion.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits |
| Digital Input (VIH - Logic '1') | 2.0 | - | 5.5 | Volts |
| Digital Input (VIL - Logic '0') | 0 | - | 0.8 | Volts |
| Integral Nonlinearity (INL) | ±0.003% | - | ±0.003% | % of FSR |
| Differential Nonlinearity (DNL) | ±0.003% | - | ±0.003% | % of FSR |
| Monotonicity Over Temperature | 15 | - | - | Bits |
| Output Settling Time | - | 10 µs | - | µs |
| Output Range | -10 V to +10 V | - | 0 V to +10 V | Volts |
| Operating Temperature Range | -40°C | - | +85°C | °C |
| Package Type | - | - | 28-pin SOIC | - |
Key Features
- On-Chip Reference and Amplifier: The AD669AR-REEL includes an internal buried Zener reference laser-trimmed to 10.000 volts with a ±0.2% maximum error, and an on-chip output amplifier.
- High Precision and Linearity: Maintains ±0.003% integral nonlinearity and ±0.003% differential nonlinearity, with 15-bit monotonicity over temperature.
- Flexible Output Range: Pin-programmable output range of either unipolar (0 V to +10 V) or bipolar (-10 V to +10 V) without requiring external components.
- Double-Buffered Latches: Eliminates data skew errors and allows for simultaneous updating of DACs in multi-DAC systems.
- Low Glitch and THD+N: Features low glitch (15 nV-s) and low THD+N (0.009%), making it suitable for signal generation applications.
- MIL-STD-883 Compliance: Available in versions compliant with MIL-STD-883 for military and high-reliability applications.
Applications
- Signal Generation: Suitable for generating high-quality analog signals due to its low THD+N and high SNR (83 dB).
- Industrial Control Systems: Used in precision control systems where accurate and reliable analog output is crucial.
- Aerospace and Defense: Compliant with MIL-STD-883, making it suitable for military and aerospace applications.
- Medical Equipment: Can be used in medical devices requiring precise analog output, such as in diagnostic and therapeutic equipment.
- Test and Measurement Equipment: Ideal for use in precision measurement instruments where high accuracy and stability are required.
Q & A
- What is the resolution of the AD669AR-REEL?
The AD669AR-REEL has a resolution of 16 bits.
- What is the output range of the AD669AR-REEL?
The output range is pin-programmable and can be set to either unipolar (0 V to +10 V) or bipolar (-10 V to +10 V).
- What is the integral nonlinearity of the AD669AR-REEL?
The integral nonlinearity is maintained at ±0.003%.
- Does the AD669AR-REEL have on-chip latches?
Yes, it features double-buffered latches to eliminate data skew errors and allow simultaneous updating of DACs.
- Is the AD669AR-REEL compliant with any military standards?
Yes, it is available in versions compliant with MIL-STD-883.
- What is the settling time of the output amplifier?
The output amplifier provides a voltage output settling time of 10 µs to within 1/2 LSB for a full-scale step.
- What is the operating temperature range of the AD669AR-REEL?
The operating temperature range is from -40°C to +85°C.
- What package type is the AD669AR-REEL available in?
The AD669AR-REEL is available in a 28-pin SOIC package.
- What are the digital input voltage levels for the AD669AR-REEL?
The digital input voltage levels are 2.0 V to 5.5 V for logic '1' and 0 V to 0.8 V for logic '0'.
- What is the THD+N specification of the AD669AR-REEL?
The THD+N specification is 0.009%.
