Overview
The AD5684RBRUZ-RL7, produced by Analog Devices Inc., is a quad, 12-bit, rail-to-rail, voltage output Digital-to-Analog Converter (DAC) part of the nanoDAC+™ family. This device is known for its low power consumption and high precision, making it suitable for a variety of applications. It operates from a single 2.7 V to 5.5 V supply and includes a 2.5 V, 2 ppm/°C internal reference. The AD5684RBRUZ-RL7 is available in a compact 16-lead TSSOP package, enhancing its usability in space-constrained designs.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 | 12 | 12 | Bits | |
| Relative Accuracy | ±0.12 | ±2 | ±1 | LSB | Gain = 1 or 2 |
| 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 |
| Output Voltage Range | 0 | 2.5V (Gain=1) or 5V (Gain=2) | V | VREF dependent | |
| Load Regulation | 80 | 80 | 80 | µV/mA | DAC code = midscale; −20 mA ≤ IOUT ≤ +20 mA |
| Short-Circuit Current | 40 | 40 | 40 | mA | |
| Power Supply | 2.7 | 5.5 | V | ||
| Operating Temperature | -40 | 105 | °C | ||
| Output Settling Time | 5 | 7 | µs | ¼ to ¾ scale settling to ±2 LSB |
Key Features
- Low Power Consumption: The AD5684RBRUZ-RL7 operates at a low power of 1.8 mW at 3 V, making it energy-efficient.
- High Precision: The device features a relative accuracy of ±0.12 LSB and a differential nonlinearity of ±1 LSB, ensuring high precision output.
- Internal Reference: It includes a 2.5 V, 2 ppm/°C internal reference, which can be enabled by default.
- Gain Selectability: The device offers a gain select pin, allowing for a full-scale output of 2.5 V (gain=1) or 5 V (gain=2).
- SPI Interface: The AD5684RBRUZ-RL7 features a versatile SPI interface that operates at clock rates up to 50 MHz and supports 1.8 V, 3 V, or 5 V logic.
- Power-Down Mode: Each channel has a per-channel power-down feature, reducing current consumption to 4 µA at 3 V in power-down mode.
- Compact Packaging: Available in a 3 mm x 3 mm, 16-lead LFCSP or TSSOP package, making it suitable for space-constrained designs.
Applications
- Digital Gain and Offset Adjustment: Ideal for applications requiring precise digital control over gain and offset.
- Programmable Attenuators: Used in systems where variable attenuation is necessary.
- Process Control (PLC I/O Cards): Suitable for industrial control systems due to its precision and reliability.
- Industrial Automation: Applies to various automation tasks requiring accurate voltage output.
- Data Acquisition Systems: Used in data acquisition systems for precise analog output generation.
Q & A
- What is the resolution of the AD5684RBRUZ-RL7?
The AD5684RBRUZ-RL7 has a resolution of 12 bits.
- What is the operating voltage range of the AD5684RBRUZ-RL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What is the internal reference voltage of the AD5684RBRUZ-RL7?
The device includes a 2.5 V, 2 ppm/°C internal reference.
- What are the gain options for the AD5684RBRUZ-RL7?
The device offers gain options of 1 or 2, selectable via a gain select pin.
- What is the maximum SPI clock rate for the AD5684RBRUZ-RL7?
The SPI interface operates at clock rates up to 50 MHz.
- How much current does the AD5684RBRUZ-RL7 consume in power-down mode?
In power-down mode, the device consumes 4 µA at 3 V.
- What is the output settling time of the AD5684RBRUZ-RL7?
The output settling time is 5 to 7 µs for ¼ to ¾ scale settling to ±2 LSB.
- Is the AD5684RBRUZ-RL7 guaranteed to be monotonic?
Yes, the device is guaranteed monotonic by design.
- What are the typical package options for the AD5684RBRUZ-RL7?
The device is available in 16-lead TSSOP and 16-lead LFCSP packages.
- What are some common applications of the AD5684RBRUZ-RL7?
Common applications include digital gain and offset adjustment, programmable attenuators, process control, industrial automation, and data acquisition systems.
