Overview
The AD5686BRUZ, 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 operate from a single 2.7 V to 5.5 V supply and features a gain select pin, allowing for full-scale output of either 2.5 V or 5 V. The AD5686BRUZ is available in a 16-lead TSSOP package and is guaranteed monotonic by design, ensuring high accuracy and reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±2 | ±8 | ±1 | LSB | Gain = 2 |
| Differential Nonlinearity | ±1 | ±1 | ±1 | LSB | Guaranteed monotonic by design |
| Zero-Code Error | 0.4 | 4 | 0.4 | mV | All 0s loaded to DAC register |
| Offset Error | +0.1 | ±4 | +0.1 | mV | |
| Gain Error | ±0.1 | ±0.1 | ±0.1 | % FSR | |
| Output Voltage Settling Time | 5 | 8 | µs | ¼ to ¾ scale settling to ±2 LSB | |
| Voltage - Supply, Analog | 2.7 | 5.5 | V | ||
| Voltage - Supply, Digital | 1.8 | 5.5 | V | ||
| Package | 16-lead TSSOP |
Key Features
- High Relative Accuracy: The AD5686BRUZ has a relative accuracy of ±2 LSB maximum, ensuring high precision in digital-to-analog conversion.
- Excellent DC Performance: The device features a total unadjusted error of ±0.1% of FSR maximum, offset error of ±1.5 mV maximum, and gain error of ±0.1% of FSR maximum.
- Low Power Consumption: The AD5686BRUZ operates with low power consumption, with a current draw of 1.0 mA to 1.5 mA in normal mode and 0.2 µA to 1 µA in power-down mode.
- Versatile Interface: The device 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.
- Power-On Reset and Power-Down Feature: The AD5686BRUZ includes a power-on reset circuit and a per-channel power-down feature, reducing current consumption to 4 µA at 3 V in power-down mode.
Applications
The AD5686BRUZ is suitable for a variety of applications requiring precise digital-to-analog conversion, including:
- Industrial Automation: For control systems and data acquisition in industrial environments.
- Medical Devices: In medical equipment where high accuracy and reliability are crucial.
- Aerospace and Defense: For applications requiring robust and precise analog output.
- Automotive Systems: In automotive control systems and sensors.
- Consumer Electronics: In audio and video equipment, and other consumer devices requiring high-quality analog output.
Q & A
- What is the resolution of the AD5686BRUZ?
The AD5686BRUZ has a resolution of 16 bits.
- What are the supply voltage ranges for the AD5686BRUZ?
The device operates from a single 2.7 V to 5.5 V supply for analog and 1.8 V to 5.5 V for digital inputs.
- What is the maximum gain error of the AD5686BRUZ?
The gain error is ±0.1% of Full-Scale Range (FSR).
- What is the package type of the AD5686BRUZ?
The AD5686BRUZ is available in a 16-lead TSSOP package.
- What is the maximum clock rate for the SPI interface?
The SPI interface operates at clock rates up to 50 MHz.
- Does the AD5686BRUZ have a power-down feature?
Yes, the device includes a per-channel power-down feature that reduces current consumption to 4 µA at 3 V.
- What is the typical output voltage settling time?
The output voltage settling time is typically 8 µs for ¼ to ¾ scale settling to ±2 LSB.
- Is the AD5686BRUZ guaranteed monotonic by design?
Yes, the device is guaranteed monotonic by design, ensuring that the output voltage always increases or remains the same as the digital input code increases.
- What are the typical current consumption values for the AD5686BRUZ?
The typical current consumption is 1.0 mA to 1.5 mA in normal mode and 0.2 µA to 1 µA in power-down mode.
- Does the AD5686BRUZ support multiple logic voltage levels?
Yes, the device includes a VLOGIC pin that supports 1.8 V, 3 V, and 5 V logic levels.
