Overview
The AD5686RBCPZ-RL7, produced by Analog Devices Inc., is a member of the nanoDAC+® family. It is a quad, 16-bit, rail-to-rail, voltage output digital-to-analog converter (DAC). This device is designed for low power consumption and features a 2.5 V, 2 ppm/°C internal reference. The AD5686RBCPZ-RL7 operates from a single 2.7 V to 5.5 V supply and includes a gain select pin, allowing for full-scale output of either 2.5 V or 5 V. The device is available in a 3mm × 3mm LFCSP package.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±2 | ±2 | LSB | Gain = 2, ±8 LSB maximum for A Grade | |
| Differential Nonlinearity | ±1 | ±1 | LSB | Guaranteed monotonic by design | |
| Zero-Code Error | 0.4 | 1.5 | mV | ||
| Output Voltage Range | 0 | 2 × VREF | V | Gain = 2, see Figure 33 | |
| Supply Voltage | 2.7 | 5.5 | V | ||
| Power-Up Time | 2.5 | 2.5 | µs | Coming out of power-down mode; VDD = 5 V | |
| Current Consumption (Power-Down) | 4 | 4 | µA | At 3 V | |
| SPI Clock Rate | 50 | MHz |
Key Features
- High Relative Accuracy: ±2 LSB maximum for the AD5686R, ensuring high precision in output voltage.
- Low Drift Internal Reference: 2.5 V, 2 ppm/°C internal reference for stable output.
- Power-On-Reset Circuit: Ensures DAC outputs power up to zero-scale or midscale and remain there until a valid write takes place.
- Per-Channel Power-Down Feature: Reduces current consumption to 4 µA at 3 V while in power-down mode.
- Versatile SPI Interface: Operates at clock rates up to 50 MHz and includes a VLOGIC pin for 1.8 V/3 V/5 V logic.
- Gain Select Pin: Allows for full-scale output of either 2.5 V or 5 V.
- Package Options: Available in 3mm × 3mm LFCSP and 16-lead TSSOP packages.
Applications
- Industrial Automation: Suitable for precise control and measurement in industrial automation systems.
- Medical Devices: Used in medical equipment requiring high accuracy and reliability.
- Aerospace and Defense: The AD5686R-EP model supports defense and aerospace applications, adhering to AQEC standards.
- Automotive Systems: Applied in automotive systems for precise voltage control and measurement.
- Test and Measurement Equipment: Ideal for use in test and measurement instruments due to its high precision and stability.
Q & A
- What is the resolution of the AD5686RBCPZ-RL7?
The AD5686RBCPZ-RL7 has a resolution of 16 bits.
- What is the relative accuracy of the AD5686RBCPZ-RL7?
The relative accuracy is ±2 LSB maximum.
- What is the temperature coefficient of the internal reference?
The internal reference has a temperature coefficient of 2 ppm/°C typical and 5 ppm/°C maximum.
- What are the package options for the AD5686RBCPZ-RL7?
The device is available in 3mm × 3mm LFCSP and 16-lead TSSOP packages.
- What is the power consumption in power-down mode?
The current consumption in power-down mode is 4 µA at 3 V.
- What is the maximum SPI clock rate?
The SPI interface operates at clock rates up to 50 MHz.
- What is the output voltage range with gain = 2?
The output voltage range with gain = 2 is 0 to 2 × VREF.
- Does the AD5686RBCPZ-RL7 have a power-on-reset circuit?
Yes, the device includes a power-on-reset circuit that ensures the DAC outputs power up to zero-scale or midscale.
- What is the typical power-up time from power-down mode?
The power-up time from power-down mode is 2.5 µs at VDD = 5 V.
- Is the AD5686RBCPZ-RL7 guaranteed monotonic by design?
Yes, the device is guaranteed monotonic by design.
