Overview
The AD5686ARUZ, 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 designed to offer high relative accuracy and excellent DC performance, making it suitable for a variety of precision applications. The AD5686ARUZ operates from a single 2.7 V to 5.5 V supply and includes an internal 2.5 V reference, which can be used to generate output voltages of 2.5 V or 5 V.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 16-bit | ||
| Relative Accuracy (INL) | ±2 LSB maximum | ||
| Total Unadjusted Error | ±0.1% of FSR maximum | ||
| Offset Error | ±1.5 mV maximum | ||
| Gain Error | ±0.1% of FSR maximum | ||
| Supply Voltage | 2.7 V to 5.5 V | ||
| Output Voltage Settling Time | 5 to 8 µs (¼ to ¾ scale settling to ±2 LSB) | ||
| Slew Rate | 0.8 V/µs | ||
| Power Consumption (Normal Mode) | 1.0 to 1.5 mA (internal reference off), 1.8 to 2.25 mA (internal reference on) | VDD = 2.7 V to 3.6 V | |
| Power Consumption (Power-Down Mode) | 0.2 to 1 µA | VDD = 2.7 V to 3.6 V | |
| Package Type | 16-lead TSSOP |
Key Features
- High Relative Accuracy: The AD5686ARUZ offers ±2 LSB maximum relative accuracy, ensuring precise output voltages.
- Excellent DC Performance: Total unadjusted error of ±0.1% of full-scale range (FSR), offset error of ±1.5 mV, and gain error of ±0.1% of FSR.
- Low Power Consumption: The device operates in low power mode, consuming 1.0 to 1.5 mA in normal mode and 0.2 to 1 µA in power-down mode.
- Flexible Interface: The AD5686ARUZ employs a versatile SPI interface that operates at clock rates up to 50 MHz and includes a VLOGIC pin for 1.8 V/3 V/5 V logic compatibility.
- Gain Select Pin: Allows for adjustable gain settings.
- Power-On Reset and Reset Select Pin: Ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place.
- Per-Channel Power-Down Feature: Reduces current consumption to 4 µA at 3 V while in power-down mode.
Applications
- Industrial Automation: Suitable for precision control and measurement in industrial environments.
- Medical Devices: Used in medical equipment requiring high accuracy and low power consumption.
- Aerospace and Defense: Ideal for applications where precision and reliability are critical.
- Automotive Systems: Employed in automotive control systems that demand high accuracy and robust performance.
- Test and Measurement Equipment: Utilized in various test and measurement instruments requiring precise analog output.
Q & A
- What is the resolution of the AD5686ARUZ?
The AD5686ARUZ has a resolution of 16 bits.
- What is the typical supply voltage range for the AD5686ARUZ?
The device operates from a single 2.7 V to 5.5 V supply.
- What is the maximum relative accuracy of the AD5686ARUZ?
The maximum relative accuracy is ±2 LSB.
- How does the power-on reset feature work on the AD5686ARUZ?
The power-on reset circuit ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place.
- What is the power consumption in normal mode and power-down mode?
In normal mode, the power consumption is 1.0 to 1.5 mA (internal reference off) and 1.8 to 2.25 mA (internal reference on). In power-down mode, it is 0.2 to 1 µA.
- What type of interface does the AD5686ARUZ use?
The device employs a versatile SPI interface that operates at clock rates up to 50 MHz.
- What is the purpose of the VLOGIC pin on the AD5686ARUZ?
The VLOGIC pin is intended for 1.8 V/3 V/5 V logic compatibility.
- Can the AD5686ARUZ be used in industrial automation applications?
Yes, it is suitable for precision control and measurement in industrial environments.
- How does the per-channel power-down feature work?
The per-channel power-down feature reduces the current consumption of the device to 4 µA at 3 V while in power-down mode.
- What is the output voltage settling time of the AD5686ARUZ?
The output voltage settling time is 5 to 8 µs (¼ to ¾ scale settling to ±2 LSB).
