Overview
The AD5684RARUZ-RL7, produced by Analog Devices Inc., is a quad, 12-bit, rail-to-rail, voltage output digital-to-analog converter (DAC) that is part of the nanoDAC+ family. This device is known for its low power consumption and high precision, making it suitable for a variety of applications requiring accurate analog output. The AD5684R includes a 2.5V, 2ppm/°C internal reference and a gain select pin, allowing for full-scale output of either 2.5V or 5V. It operates from a single 2.7V to 5.5V supply and is guaranteed monotonic by design, ensuring reliable performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 12 bits | ||||
| Supply Voltage | 2.7 | 5.5 | V | ||
| Internal Reference Voltage | 2.5 | V | 2ppm/°C drift | ||
| Output Voltage Range | 0 | 2 × VREF | V | V Gain = 1 or 2 | |
| Load Regulation | 80 | µV/mA | VDD = 5V, DAC code = midscale; −30 mA ≤ IOUT ≤ 30 mA | ||
| Short-Circuit Current | 40 | mA | |||
| Power-Up Time | 2.5 | µs | Coming out of power-down mode; VDD = 5V | ||
| Power-Down Current | 4 | µA | At 3V | ||
| SPI Clock Rate | 50 | MHz | |||
Key Features
- High Relative Accuracy: ±1 LSB maximum INL.
- Low Drift Internal Reference: 2.5V, 2ppm/°C.
- Low Power Consumption: 4µA in power-down mode at 3V.
- Versatile SPI Interface: Operates at clock rates up to 50 MHz.
- Gain Select Pin: Allows for full-scale output of either 2.5V or 5V.
- Per-Channel Power-Down Feature: Reduces current consumption significantly in power-down mode.
- Power-On-Reset Circuit and RSTSEL Pin: Ensures DAC outputs power up to zero-scale or midscale and remain there until a valid write takes place.
Applications
The AD5684RARUZ-RL7 is suitable for various applications requiring precise analog output, such as:
- Industrial Automation: For control systems and data acquisition.
- Medical Devices: For precise voltage output in medical equipment.
- Aerospace and Defense: For applications requiring high reliability and precision.
- Automotive Systems: For control and monitoring systems.
- Test and Measurement Equipment: For generating precise analog signals.
Q & A
- What is the resolution of the AD5684RARUZ-RL7 DAC?
The AD5684RARUZ-RL7 has a resolution of 12 bits.
- What is the supply voltage range for the AD5684RARUZ-RL7?
The device operates from a single 2.7V to 5.5V supply.
- What is the drift of the internal reference voltage?
The internal reference voltage has a drift of 2ppm/°C.
- How much current does the AD5684RARUZ-RL7 consume in power-down mode?
The device consumes 4µA in power-down mode at 3V.
- What is the maximum SPI clock rate for the AD5684RARUZ-RL7?
The SPI interface operates at clock rates up to 50 MHz.
- What are the possible full-scale output voltages for the AD5684RARUZ-RL7?
The device can output either 2.5V or 5V depending on the gain setting.
- Does the AD5684RARUZ-RL7 have a power-on-reset feature?
Yes, the device 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 load regulation of the AD5684RARUZ-RL7?
The load regulation is 80µV/mA at VDD = 5V and DAC code = midscale; −30 mA ≤ IOUT ≤ 30 mA.
- How long does it take for the AD5684RARUZ-RL7 to power up from power-down mode?
The power-up time is 2.5µs coming out of power-down mode; VDD = 5V.
- What are some common applications for the AD5684RARUZ-RL7?
The device is commonly used in industrial automation, medical devices, aerospace and defense, automotive systems, and test and measurement equipment.
