Overview
The AD5684BRUZ, produced by Analog Devices Inc., is a member of the nanoDAC+™ family. It is a low power, quad, 12-bit buffered voltage output Digital-to-Analog Converter (DAC). This device is designed for high precision and low power consumption, making it suitable for a variety of applications requiring accurate analog output.
The AD5684BRUZ operates from a single 2.7 V to 5.5 V supply and features a gain select pin that allows for full-scale output of either 2.5 V (gain = 1) or 5 V (gain = 2). It is guaranteed monotonic by design and exhibits excellent DC performance with less than 0.1% Full-Scale Range (FSR) gain error and 1.5 mV offset error.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 | 12 | 12 | Bits | |
| Relative Accuracy | ±0.12 | ±2 | ±1 | LSB | |
| Differential Nonlinearity | ±1 | ±1 | ±1 | LSB | Guaranteed monotonic by design |
| Zero-Code Error | 0.4 | 4 | 1.5 | mV | All 0s loaded to DAC register |
| Offset Error | ±0.1 | ±4 | ±1.5 | mV | |
| Full-Scale Error | ±0.1 | % FSR | |||
| Output Voltage Settling Time | 5 | 7 | µs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 0.8 | V/µs | |||
| Digital-to-Analog Glitch Impulse | 0.5 | nV-sec | 1 LSB change around major carry | ||
| Power Supply Voltage | 2.7 | 5.5 | V | ||
| Power Consumption (Power-Down Mode) | 4 | µA | At 3 V |
Key Features
- High Relative Accuracy: The AD5684BRUZ has a relative accuracy of ±1 LSB maximum, ensuring high precision in analog output.
- Excellent DC Performance: The device exhibits less than 0.1% FSR gain error and 1.5 mV offset error, making it suitable for applications requiring high DC accuracy.
- Low Power Consumption: It operates from a single 2.7 V to 5.5 V supply and features a power-down mode that reduces current consumption to 4 µA at 3 V.
- Versatile SPI Interface: The device supports an SPI interface with 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 full-scale output of either 2.5 V (gain = 1) or 5 V (gain = 2).
- Power-On Reset and RSTSEL Pin: Ensures 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 significantly in power-down mode.
Applications
- Industrial Control Systems: The high precision and low power consumption make it ideal for industrial control systems where accurate analog outputs are crucial.
- Medical Devices: Suitable for medical devices that require precise analog signals, such as in diagnostic equipment and patient monitoring systems.
- Aerospace and Defense: The device's reliability and high performance make it a good fit for aerospace and defense applications where precision is critical.
- Automotive Systems: Can be used in automotive systems for various control and monitoring functions that require accurate analog outputs.
- Test and Measurement Equipment: Ideal for test and measurement equipment due to its high relative accuracy and excellent DC performance).
Q & A
- What is the resolution of the AD5684BRUZ?
The AD5684BRUZ has a resolution of 12 bits).
- What are the possible full-scale output voltages of the AD5684BRUZ?
The device can provide full-scale output voltages of either 2.5 V (gain = 1) or 5 V (gain = 2)).
- What is the power supply voltage range for the AD5684BRUZ?
The device operates from a single 2.7 V to 5.5 V supply).
- How much current does the AD5684BRUZ consume in power-down mode?
In power-down mode, the device consumes 4 µA at 3 V).
- What type of interface does the AD5684BRUZ support?
The device supports a versatile SPI interface with clock rates up to 50 MHz).
- What is the significance of the RSTSEL pin in the AD5684BRUZ?
The RSTSEL pin ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place).
- What are the package options available for the AD5684BRUZ?
The device is available in a 3 mm × 3 mm LFCSP and a 16-lead TSSOP package).
- What is the maximum differential nonlinearity of the AD5684BRUZ?
The maximum differential nonlinearity is ±1 LSB, and the device is guaranteed monotonic by design).
- How long does it take for the output voltage to settle in the AD5684BRUZ?
The output voltage settling time is 5 to 7 µs for ¼ to ¾ scale settling to ±2 LSB).
- What is the slew rate of the AD5684BRUZ?
The slew rate of the device is 0.8 V/µs).
