Overview
The AD5686BCPZ-RL7, produced by Analog Devices Inc., is a member of the nanoDAC+™ family. It is a low power, quad, 16-bit buffered voltage output Digital-to-Analog Converter (DAC). This device is designed for high accuracy and low power consumption, making it suitable for a variety of applications requiring precise analog output.
The AD5686BCPZ-RL7 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). The device 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 | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±2 | ±8 | ±1 | LSB | Gain = 2, Guaranteed monotonic by design |
| 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 | % | |||
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Logic Supply Voltage (VLOGIC) | 1.62 | 5.5 | V | ||
| Normal Mode Current Consumption (IDD) | 0.59 | 0.7 | mA | Interface inactive, All DACs active, DAC outputs unloaded | |
| Power-Down Current Consumption | 1 | 4 | µA | All DACs powered down | |
| Output Voltage Settling Time | 5 | 8 | µs | ¼ to ¾ scale settling to ±2 LSB |
Key Features
- High Relative Accuracy: The AD5686BCPZ-RL7 features high relative accuracy with ±2 LSB maximum for 16-bit resolution, ensuring precise 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: Operating from a single 2.7 V to 5.5 V supply, the device consumes low power, with normal mode current consumption of 0.59 mA and power-down current consumption of 4 µA at 3 V.
- Versatile Interface: The AD5686BCPZ-RL7 employs a versatile SPI interface that operates at clock rates up to 50 MHz and includes a VLOGIC pin for 1.8 V/3 V/5 V logic compatibility.
- Power-On Reset and Power-Down Feature: The device includes a power-on reset circuit and a RSTSEL pin to ensure DAC outputs power up to zero scale or midscale. It also features a per-channel power-down mode to reduce current consumption.
- Compact Packaging: Available in 3 mm × 3 mm LFCSP and 16-lead TSSOP packages, making it suitable for space-constrained applications.
Applications
- Industrial Control Systems: The high accuracy and low power consumption make the AD5686BCPZ-RL7 suitable for industrial control systems where precise analog output is required.
- Medical Devices: The device's excellent DC performance and low drift characteristics are beneficial in medical devices that require stable and accurate analog signals.
- Aerospace and Defense: The compact packaging and robust performance of the AD5686BCPZ-RL7 make it a good fit for aerospace and defense applications where reliability and precision are critical.
- Automotive Systems: The device can be used in automotive systems for various control and monitoring functions due to its high accuracy and low power consumption.
- Test and Measurement Equipment: The AD5686BCPZ-RL7 is suitable for test and measurement equipment where precise analog output is necessary for accurate measurements.
Q & A
- What is the resolution of the AD5686BCPZ-RL7?
The AD5686BCPZ-RL7 has a resolution of 16 bits.
- What are the supply voltage ranges for the AD5686BCPZ-RL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What is the maximum gain error of the AD5686BCPZ-RL7?
The maximum gain error is less than 0.1% of Full-Scale Range (FSR).
- Does the AD5686BCPZ-RL7 have a power-down feature?
Yes, the device features a per-channel power-down mode that reduces current consumption to 4 µA at 3 V.
- What types of packages are available for the AD5686BCPZ-RL7?
The device is available in 3 mm × 3 mm LFCSP and 16-lead TSSOP packages.
- What is the maximum clock rate for the SPI interface of the AD5686BCPZ-RL7?
The SPI interface operates at clock rates up to 50 MHz.
- How does the power-on reset circuit work in the AD5686BCPZ-RL7?
The power-on reset circuit ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place.
- What is the output voltage range for the AD5686BCPZ-RL7?
The output voltage range is 0 to 2.5 V (gain = 1) or 0 to 5 V (gain = 2).
- Is the AD5686BCPZ-RL7 guaranteed monotonic by design?
Yes, the device is guaranteed monotonic by design.
- What is the typical output voltage settling time for the AD5686BCPZ-RL7?
The typical output voltage settling time is 8 µs for ¼ to ¾ scale settling to ±2 LSB.
