Overview
The AD5686BRUZ-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 precision and low power consumption, making it suitable for a variety of applications requiring accurate analog output.
The AD5686BRUZ-RL7 operates from a single 2.7 V to 5.5 V supply and features a versatile SPI interface that can operate at clock rates up to 50 MHz. The device includes a gain select pin, allowing for full-scale output of either 2.5 V or 5 V. It is available in a 16-lead TSSOP package.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Relative Accuracy | ±2 | ±8 | ±1 | LSB | Gain = 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 |
| Offset Error | ±0.1 | ±4 | ±1.5 | mV | |
| Full-Scale Error | ±0.1% | % of FSR | |||
| VDD | 2.7 | 5.5 | V | ||
| VLOGIC | 1.62 | 5.5 | V | ||
| Normal Mode Current Consumption | 0.59 | 0.7 | 0.7 | mA | Interface inactive, all DACs active, DAC outputs unloaded |
| Power-Down Mode 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 Precision: The AD5686BRUZ-RL7 offers high relative accuracy with a maximum error of ±2 LSB and excellent DC performance, including total unadjusted error, offset error, and gain error.
- Low Power Consumption: The device operates in normal mode with a current consumption of 0.59 mA to 0.7 mA and reduces to 1 μA to 4 μA in power-down mode.
- Versatile Interface: It features a SPI interface that can operate at clock rates up to 50 MHz and supports 1.8 V, 3 V, or 5 V logic through the VLOGIC pin.
- Gain Selectability: The device includes a gain select pin, allowing for full-scale output of either 2.5 V or 5 V.
- Package Options: Available in 16-lead TSSOP and 3 mm × 3 mm LFCSP packages.
- 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 when in power-down mode.
Applications
- Industrial Automation: Suitable for control systems and industrial automation where precise analog outputs are required.
- Medical Devices: Can be used in medical equipment that demands high accuracy and reliability.
- Aerospace and Defense: Applicable in various aerospace and defense systems requiring low power and high precision DACs.
- Automotive Systems: Used in automotive control systems, sensors, and other applications needing accurate analog signals.
- Test and Measurement Equipment: Ideal for test and measurement instruments that require precise voltage outputs.
Q & A
- What is the resolution of the AD5686BRUZ-RL7?
The AD5686BRUZ-RL7 has a resolution of 16 bits.
- What are the available package options for the AD5686BRUZ-RL7?
The device is available in 16-lead TSSOP and 3 mm × 3 mm LFCSP packages.
- What is the operating voltage range for the AD5686BRUZ-RL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What is the maximum clock rate for the SPI interface of the AD5686BRUZ-RL7?
The SPI interface can operate at clock rates up to 50 MHz.
- How does the gain select pin function on the AD5686BRUZ-RL7?
The gain select pin allows for full-scale output of either 2.5 V or 5 V.
- What is the current consumption in normal mode and power-down mode for the AD5686BRUZ-RL7?
In normal mode, the current consumption is 0.59 mA to 0.7 mA, and in power-down mode, it reduces to 1 μA to 4 μA.
- Is the AD5686BRUZ-RL7 guaranteed to be monotonic?
Yes, the device is guaranteed monotonic by design.
- What is the output voltage settling time for the AD5686BRUZ-RL7?
The output voltage settling time is 5 μs to 8 μs for ¼ to ¾ scale settling to ±2 LSB.
- Does the AD5686BRUZ-RL7 have a power-on reset feature?
Yes, the device includes a power-on reset circuit and a RSTSEL pin that ensures the DAC outputs power up to zero scale or midscale.
- Can the AD5686BRUZ-RL7 be used in high-temperature environments?
The device operates within a temperature range of -40°C to +85°C, but operation above the specified maximum junction temperature may impair device reliability).
