Overview
The AD669BRZ, produced by Analog Devices Inc., is a complete 16-bit monolithic Digital-to-Analog Converter (DAC) known as the DACPORT®. This device integrates an on-board reference and output amplifier, making it a comprehensive solution for precision analog output applications. Manufactured using Analog Devices' BiMOS II process, the AD669BRZ combines low power CMOS logic functions with high precision bipolar linear circuitry. It includes current switches, decoding logic, an output amplifier, a buried Zener reference, and double-buffered latches, ensuring high accuracy and reliability over a wide temperature range.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16 | Bits |
| Integral Nonlinearity (INL) | ±0.003% (Typ), ±2 LSB (Max) | % / LSB |
| Differential Nonlinearity (DNL) | ±0.003% (Typ), ±2 LSB (Max) | % / LSB |
| Monotonicity Over Temperature | 15 Bits | Bits |
| Settling Time | 10 µs to within 1/2 LSB for a full-scale step | µs |
| Output Range | Pin-programmable: 0 V to +10 V (unipolar) or -10 V to +10 V (bipolar) | V |
| Supply Voltage (Analog) | ±13.5 V to ±16.5 V | V |
| Supply Voltage (Digital) | 5 V | V |
| Operating Temperature | -40°C to +85°C | °C |
| Package | 28-pin SOIC (Wide) |
Key Features
- On-board Reference and Output Amplifier: The AD669BRZ includes an internal buried Zener reference and an output amplifier, providing a complete DAC solution on a single chip.
- High Precision and Linearity: Ensures 15-bit monotonicity over temperature with integral and differential nonlinearity of ±0.003% max.
- Fast Settling Time: The output amplifier provides a settling time of 10 µs to within 1/2 LSB for a full-scale step.
- Double-Buffered Latches: Eliminates data skew errors and allows simultaneous updating of DACs in multi-DAC systems.
- Pin-Programmable Output Range: Can be set to provide either a unipolar output range of 0 V to +10 V or a bipolar output range of -10 V to +10 V.
- MIL-STD-883 Compliant Versions: Available for military and high-reliability applications.
Applications
The AD669BRZ is suitable for a variety of applications requiring high precision and reliability, including:
- Signal Generation: With its low THD+N and high SNR, it is ideal for generating high-quality analog signals.
- Industrial Control Systems: Its precision and stability make it a good fit for control systems in industrial environments.
- Aerospace and Defense: The MIL-STD-883 compliant versions are suitable for military and aerospace applications.
- Medical Equipment: Its high accuracy and reliability are beneficial in medical devices requiring precise analog outputs.
Q & A
- What is the resolution of the AD669BRZ?
The AD669BRZ has a resolution of 16 bits.
- What is the typical integral nonlinearity (INL) of the AD669BRZ?
The typical INL is ±0.003%.
- What is the settling time of the AD669BRZ for a full-scale step?
The settling time is 10 µs to within 1/2 LSB for a full-scale step.
- Can the output range of the AD669BRZ be programmed?
Yes, the output range is pin-programmable and can be set to either 0 V to +10 V (unipolar) or -10 V to +10 V (bipolar).
- What is the operating temperature range of the AD669BRZ?
The operating temperature range is -40°C to +85°C.
- Is the AD669BRZ available in MIL-STD-883 compliant versions?
Yes, MIL-STD-883 compliant versions are available.
- What type of package does the AD669BRZ come in?
The AD669BRZ is packaged in a 28-pin SOIC (Wide).
- How is data loaded into the AD669BRZ?
Data is loaded into the AD669BRZ in a parallel 16-bit format.
- What are the benefits of the double-buffered latches in the AD669BRZ?
The double-buffered latches eliminate data skew errors and allow simultaneous updating of DACs in multi-DAC systems.
- What is the supply voltage range for the analog and digital sections of the AD669BRZ?
The analog supply voltage range is ±13.5 V to ±16.5 V, and the digital supply voltage is 5 V.
