Overview
The AD5689RARUZ-RL7, produced by Analog Devices Inc., is a member of the nanoDAC+™ family. It is a low power, dual, 16-bit buffered voltage output digital-to-analog converter (DAC). This device features a 2.5 V, 2 ppm/°C internal reference and a gain select pin, allowing for full-scale output of either 2.5 V or 5 V. The AD5689R operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design, ensuring high accuracy and reliability. The device is available in a 16-lead TSSOP package and incorporates a power-on reset circuit and per-channel power-down feature, reducing current consumption to 4 μA at 3 V in power-down mode.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±1 | ±2 | ±3 | LSB | Gain = 1 or 2 |
| Differential Nonlinearity | ±1 | ±1 | ±1 | LSB | Guaranteed monotonic by design |
| Output Voltage Range | 0 | 2 × VREF | V | Gain = 1 or 2 | |
| Supply Voltage | 2.7 | 5.5 | V | ||
| Power-Up Time | 2.5 | 2.5 | μs | Coming out of power-down mode; VDD = 5 V | |
| Short-Circuit Current | 40 | 40 | mA | ||
| Load Regulation | 80 | 80 | μV/mA | DAC code = midscale; −30 mA ≤ IOUT ≤ 30 mA |
Key Features
- Low Power Consumption: The device operates with low power and can reduce current consumption to 4 μA at 3 V in power-down mode.
- High Accuracy: Features a 2.5 V, 2 ppm/°C internal reference and less than 0.1% FSR gain error and 1.5 mV offset error performance.
- Flexible Output Range: Full-scale output of either 2.5 V or 5 V selectable via a gain select pin.
- Monotonic by Design: Ensures that the DAC outputs are always monotonic, enhancing reliability and accuracy.
- Power-On Reset and RSTSEL Pin: Ensures that the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place.
- SPI Interface: Supports a versatile serial peripheral interface (SPI) with clock rates up to 50 MHz.
- Compact Packaging: Available in a 3 mm × 3 mm LFCSP and a 16-lead TSSOP package.
Applications
- Industrial Automation: Suitable for precise control and monitoring in industrial automation systems.
- Medical Devices: Used in medical equipment requiring high accuracy and reliability, such as diagnostic and treatment devices.
- Aerospace and Defense: Employed in various aerospace and defense applications where precision and low power consumption are critical.
- Test and Measurement Equipment: Ideal for use in test and measurement instruments that require accurate voltage output.
- Automotive Systems: Used in automotive systems for precise control and monitoring, especially in safety-critical applications.
Q & A
- What is the resolution of the AD5689RARUZ-RL7 DAC?
The AD5689RARUZ-RL7 has a resolution of 16 bits.
- What is the output voltage range of the AD5689RARUZ-RL7?
The output voltage range is 0 to 2.5 V or 0 to 5 V, depending on the gain setting.
- What is the supply voltage range for the AD5689RARUZ-RL7?
The device operates from a single 2.7 V to 5.5 V supply.
- Does the AD5689RARUZ-RL7 have a power-on reset feature?
Yes, it includes a power-on reset circuit and a RSTSEL pin to ensure the DAC outputs power up to zero scale or midscale.
- What is the maximum clock rate for the SPI interface of the AD5689RARUZ-RL7?
The SPI interface supports clock rates up to 50 MHz.
- What are the available package options for the AD5689RARUZ-RL7?
The device is available in a 16-lead TSSOP package and a 3 mm × 3 mm LFCSP package.
- How does the AD5689RARUZ-RL7 handle power-down mode?
In power-down mode, the current consumption is reduced to 4 μA at 3 V.
- Is the AD5689RARUZ-RL7 guaranteed monotonic by design?
Yes, the device is guaranteed monotonic by design, ensuring high accuracy and reliability.
- What is the short-circuit current of the AD5689RARUZ-RL7?
The short-circuit current is 40 mA.
- What is the load regulation of the AD5689RARUZ-RL7?
The load regulation is 80 μV/mA at DAC code = midscale; −30 mA ≤ IOUT ≤ 30 mA.
