Overview
The AD5687BRUZ-RL7 is a member of the nanoDAC+™ family from Analog Devices Inc. It is a low-power, dual 12-bit, buffered voltage output digital-to-analog converter (DAC). This device is designed for applications requiring high precision and low power consumption. The AD5687 operates from a single 2.7 V to 5.5 V supply and features a user-selectable gain of 1 or 2, allowing for full-scale output voltages of 2.5 V or 5 V, respectively. The device is guaranteed monotonic by design and exhibits excellent linearity and accuracy.
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 |
| Output Voltage Range | 0 | 2 × VREF | V | Gain = 1 or 2 | |
| Power Supply | 2.7 | 5.5 | V | ||
| Power Consumption (Normal Mode) | 0.59 | 0.7 | mA | VDD = 2.7 V to 5.5 V, DAC outputs unloaded | |
| Power Consumption (Power-Down Mode) | 1 | 4 | µA | −40°C to +105°C | |
| 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 |
Key Features
- User-selectable gain of 1 or 2, providing full-scale output voltages of 2.5 V or 5 V, respectively.
- Low power consumption: 3.3 mW at 3 V and 0.7 mA at 5 V in normal mode, and 4 µA in power-down mode.
- Guaranteed monotonic by design with excellent linearity and accuracy.
- 50 MHz SPI interface with readback or daisy chain capability.
- Power-on reset circuit and RSTSEL pin to ensure DAC outputs power up to zero scale or midscale.
- Per channel power-down feature to reduce current consumption.
- Operating temperature range of −40°C to +105°C.
- Available in 3 mm × 3 mm LFCSP and TSSOP packages.
Applications
- Optical transceivers
- Base station power amplifiers
- Process control (PLC I/O cards)
- Industrial automation
- Data acquisition systems
Q & A
- What is the resolution of the AD5687BRUZ-RL7?
The AD5687BRUZ-RL7 has a resolution of 12 bits.
- What is the power supply range for the AD5687BRUZ-RL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What are the available gain settings for the AD5687BRUZ-RL7?
The device has user-selectable gain settings of 1 or 2, providing full-scale output voltages of 2.5 V or 5 V, respectively.
- What is the typical power consumption of the AD5687BRUZ-RL7 in normal mode?
The typical power consumption is 0.7 mA at 5 V.
- What is the power consumption in power-down mode?
The power consumption in power-down mode is 4 µA.
- What is the operating temperature range of the AD5687BRUZ-RL7?
The operating temperature range is −40°C to +105°C.
- What interface does the AD5687BRUZ-RL7 use?
The device uses a 50 MHz SPI interface with readback or daisy chain capability.
- What are some of the key applications for the AD5687BRUZ-RL7?
Key applications include optical transceivers, base station power amplifiers, process control, industrial automation, and data acquisition systems.
- What package options are available for the AD5687BRUZ-RL7?
The device is available in 3 mm × 3 mm LFCSP and TSSOP packages.
- Does the AD5687BRUZ-RL7 have a power-on reset feature?
Yes, the device includes a power-on reset circuit and a RSTSEL pin to ensure that the DAC outputs power up to zero scale or midscale.
