Overview
The AD5689RBRUZ is a member of the nanoDAC+™ family from Analog Devices Inc., designed as a low-power, dual, 16-bit buffered voltage output digital-to-analog converter (DAC). This device is part of the AD5689/AD5687 series, which also includes 12-bit variants. It features a 2.5 V, 2 ppm/°C internal reference and a gain select pin that allows for full-scale outputs of 2.5 V or 5 V. The AD5689RBRUZ operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design, ensuring high accuracy and reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | - | 16 Bits | - | - | - |
| Relative Accuracy | ±1 LSB | ±2 LSB | - | - | Gain = 1 or 2 |
| Differential Nonlinearity | ±1 LSB | - | - | - | Guaranteed monotonic by design |
| Gain Error | - | - | 0.1% FSR | - | - |
| Offset Error | - | - | 1.5 mV | - | - |
| Output Voltage Settling Time | 5 µs | 8 µs | - | - | ¼ to ¾ scale settling to ±2 LSB |
| Slew Rate | 0.8 V/µs | - | - | - | - |
| Supply Voltage | 2.7 V | - | 5.5 V | - | - |
| Operating Temperature | -40°C | - | 105°C | - | - |
| Package Type | - | - | - | - | 16-Lead TSSOP |
Key Features
- Low Power Consumption: The AD5689RBRUZ operates with low power, making it suitable for battery-powered and power-sensitive applications.
- Dual 16-Bit DACs: Provides two independent 16-bit DAC channels, each with buffered voltage output.
- Internal Reference: Includes a 2.5 V, 2 ppm/°C internal reference, which can be enabled or disabled.
- Gain Select Pin: Allows for full-scale output selection of 2.5 V or 5 V.
- SPI Interface: Supports a versatile serial peripheral interface (SPI) with clock rates up to 50 MHz.
- Power-On Reset and Power-Down Feature: Ensures DAC outputs power up to zero scale or midscale and reduces current consumption to 4 µA in power-down mode.
- High Accuracy and Monotonicity: Guaranteed monotonic by design with less than 0.1% FSR gain error and 1.5 mV offset error.
Applications
- Digital Potentiometer Emulation: Can be used to emulate digital potentiometers, providing digitally controlled variable resistances in circuits.
- Video Processing: Converts digital video signals into analog signals for display and transmission.
- Test and Measurement: Suitable for various test and measurement applications requiring precise analog outputs).
Q & A
- What is the resolution of the AD5689RBRUZ DAC?
The AD5689RBRUZ has a resolution of 16 bits).
- What are the available package types for the AD5689RBRUZ?
The AD5689RBRUZ is available in 16-Lead TSSOP and 3 mm × 3 mm LFCSP packages).
- What is the operating voltage range of the AD5689RBRUZ?
The device operates from a single 2.7 V to 5.5 V supply).
- What is the temperature range for the AD5689RBRUZ?
The operating temperature range is from -40°C to 105°C).
- Does the AD5689RBRUZ have an internal reference?
Yes, it includes a 2.5 V, 2 ppm/°C internal reference).
- What is the maximum clock rate for the SPI interface?
The SPI interface operates at clock rates up to 50 MHz).
- How does the power-down feature work?
The power-down feature reduces the current consumption to 4 µA at 3 V, and the DAC outputs power up to zero scale or midscale until a valid write takes place).
- Is the AD5689RBRUZ guaranteed monotonic?
Yes, the device is guaranteed monotonic by design).
- What are some common applications of the AD5689RBRUZ?
Common applications include digital potentiometer emulation, video processing, and test and measurement).
- Is the AD5689RBRUZ RoHS compliant?
Yes, the AD5689RBRUZ is Lead Free / RoHS Compliant).
