Overview
The AD5686RARUZ-RL7, produced by Analog Devices Inc., is a member of the nanoDAC+™ family. It is a low-power, quad, 16-bit buffered voltage output Digital-to-Analog Converter (DAC). This device is known for its high relative accuracy, low drift, and versatile SPI interface. The AD5686R features a 2.5 V on-chip reference and operates within a supply voltage range of 2.7 V to 5.5 V. It is designed for applications requiring precise analog output with minimal power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±2 | ±8 | ±1 | LSB | Gain = 2, Gain = 1 |
| Differential Nonlinearity | ±1 | ±1 | ±1 | LSB | Guaranteed monotonic by design |
| Output Voltage Range | 0 | 2 × VREF | V | Gain = 2, see Figure 23 | |
| Load Regulation | 80 | 80 | 80 | µV/mA | DAC code = midscale; −30 mA ≤ IOUT ≤ +30 mA at 5 V |
| Short-Circuit Current | 40 | 40 | 40 | mA | |
| Power-Up Time | 2.5 | 2.5 | 2.5 | µs | Coming out of power-down mode; VDD = 5 V |
| VDD | 2.7 | 5.5 | V | ||
| VLOGIC | 1.62 | 5.5 | V | ||
| IDD (Normal Mode) | 0.59 | 0.7 | 0.7 | mA | Interface inactive. All DACs active. DAC outputs unloaded. |
| IDD (Power-Down Mode) | 1 | 4 | 4 | µA | All DACs powered down. |
Key Features
- High Relative Accuracy: The AD5686R offers high relative accuracy with a maximum of ±2 LSB for 16-bit resolution, ensuring precise analog output.
- Low Drift On-Chip Reference: The device includes a 2.5 V on-chip reference with low drift, enhancing stability and accuracy.
- Low Power Consumption: It operates in low power modes, with current consumption as low as 4 µA in power-down mode.
- Versatile SPI Interface: The device supports a SPI interface with clock rates up to 50 MHz, and it includes a VLOGIC pin for 1.8 V/3 V/5 V logic compatibility.
- Per-Channel Power-Down Feature: Each channel can be powered down independently, reducing overall power consumption.
- Reset and Power-Up Control: The device includes a reset circuit and RSTSEL pin to control power-up states, ensuring outputs remain at zero scale or midscale until a valid write occurs.
Applications
- Industrial Automation: Suitable for precise control and monitoring in industrial automation systems.
- Medical Devices: Used in medical equipment where high accuracy and low power consumption are critical.
- Aerospace and Defense: Applicable in aerospace and defense systems requiring reliable and precise analog output.
- Test and Measurement Equipment: Ideal for test and measurement instruments that demand high accuracy and stability.
- Automotive Systems: Used in automotive systems for precise control and monitoring of various parameters.
Q & A
- What is the resolution of the AD5686RARUZ-RL7?
The AD5686RARUZ-RL7 has a resolution of 16 bits.
- What is the relative accuracy of the AD5686RARUZ-RL7?
The relative accuracy is ±2 LSB maximum for 16-bit resolution.
- What is the operating voltage range of the AD5686RARUZ-RL7?
The device operates within a supply voltage range of 2.7 V to 5.5 V.
- What is the power consumption in normal mode?
The current consumption in normal mode is approximately 0.59 mA to 0.7 mA.
- What is the power consumption in power-down mode?
The current consumption in power-down mode is as low as 4 µA.
- Does the AD5686RARUZ-RL7 support SPI interface?
Yes, it supports a SPI interface with clock rates up to 50 MHz.
- What is the purpose of the VLOGIC pin?
The VLOGIC pin is intended for 1.8 V/3 V/5 V logic compatibility.
- Can each channel be powered down independently?
Yes, each channel has a per-channel power-down feature.
- How does the device handle power-up states?
The device includes a reset circuit and RSTSEL pin to ensure outputs remain at zero scale or midscale until a valid write occurs.
- What are some typical applications of the AD5686RARUZ-RL7?
It is used in industrial automation, medical devices, aerospace and defense, test and measurement equipment, and automotive systems.
