Overview
The AD5685RBRUZ is a member of the nanoDAC+® family from Analog Devices Inc., offering a quad, 14-bit digital-to-analog converter (DAC) with voltage output. This device is designed for low power consumption and high precision, making it suitable for a variety of applications requiring accurate analog output. The AD5685RBRUZ operates from a single supply voltage ranging from 2.7 V to 5.5 V and features a rail-to-rail output amplifier. It includes a 2.5 V, 2 ppm/°C internal reference and a gain select pin, allowing for full-scale output of either 2.5 V or 5 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Number of D/A Converters | 4 | ||||
| Number of Bits | 14 | ||||
| Supply Voltage (Digital) | 1.8 | 5.5 | V | ||
| Supply Voltage (Analog) | 2.7 | 5.5 | V | ||
| Operating Temperature | -40 | 105 | °C | ||
| Settling Time | 8 | µs | |||
| INL/DNL (LSB) | ±0.5 | ±1 | Max | ||
| Output Type | Voltage - Buffered | ||||
| Reference Type | External, Internal | ||||
| Package/Case | 16-TSSOP | 0.173" (4.40mm Width) | |||
| Power-Up Time | 2.5 | µs | Coming out of power-down mode; VDD = 5 V | ||
| Short-Circuit Current | 40 | mA | VDD = 5 V |
Key Features
- Quad 14-Bit DAC: The AD5685RBRUZ features four independent 14-bit DAC channels, providing high resolution and precision for analog output.
- Rail-to-Rail Output Amplifier: The device includes a rail-to-rail output amplifier, ensuring that the output voltage can swing from the negative to the positive supply rail.
- Internal Reference: It includes a 2.5 V, 2 ppm/°C internal reference, which can be used to set the full-scale output voltage. The reference can also be set externally.
- Gain Select Pin: A gain select pin allows the user to choose between a full-scale output of 2.5 V or 5 V.
- Low Power Consumption: The device operates with low power consumption and includes a power-down feature that reduces current consumption to 4 µA at 3 V.
- SPI Interface: The AD5685RBRUZ employs a versatile SPI interface that operates at clock rates up to 50 MHz, with support for 1.8 V, 3 V, and 5 V logic.
- Power-On Reset and RSTSEL Pin: The device features a power-on-reset circuit and a RSTSEL pin, allowing the DAC outputs to power up to either zero-scale or midscale.
Applications
The AD5685RBRUZ is suitable for various applications that require precise and reliable analog output, including:
- Industrial Automation: For control systems and instrumentation where accurate analog signals are necessary.
- Medical Devices: In medical equipment that requires precise voltage outputs for diagnostic or therapeutic purposes.
- Aerospace and Defense: For systems that demand high reliability and precision in their analog outputs.
- Automotive Systems: In automotive control systems, sensors, and actuators that require accurate analog signals.
- Test and Measurement Equipment: For generating precise analog signals in test and measurement applications.
Q & A
- What is the resolution of the AD5685RBRUZ DAC?
The AD5685RBRUZ is a 14-bit DAC.
- What is the operating voltage range for the AD5685RBRUZ?
The device operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What type of output does the AD5685RBRUZ provide?
The AD5685RBRUZ provides a voltage output that is buffered.
- Does the AD5685RBRUZ have an internal reference?
Yes, the AD5685RBRUZ includes a 2.5 V, 2 ppm/°C internal reference.
- What is the maximum settling time for the AD5685RBRUZ?
The settling time is typically 8 µs.
- How many DAC channels does the AD5685RBRUZ have?
The AD5685RBRUZ has four independent DAC channels.
- What is the power consumption in power-down mode?
In power-down mode, the current consumption is reduced to 4 µA at 3 V.
- What type of interface does the AD5685RBRUZ use?
The AD5685RBRUZ employs a SPI interface that operates at clock rates up to 50 MHz.
- What is the operating temperature range for the AD5685RBRUZ?
The operating temperature range is from -40°C to 105°C.
- Is the AD5685RBRUZ RoHS compliant?
Yes, the AD5685RBRUZ is lead-free and RoHS compliant.
