Overview
The AD5666BRUZ-1REEL7, produced by Analog Devices Inc., is a low-power, quad, 16-bit, buffered voltage-output Digital-to-Analog Converter (DAC). This device operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. It features an on-chip reference with an internal gain of 2, making it versatile for various applications. The AD5666-1 variant, specifically, has a 1.25 V 5 ppm/°C reference, resulting in a full-scale output of 2.5 V. The device is packaged in a 14-lead TSSOP and is known for its high precision and reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| VDD | 2.7 | 5.5 | V | All digital inputs at 0 or VDD, DAC active, excludes load current | |
| IDD (Normal Mode) | 1.3 | 1.5 | 1.5 | mA | VDD = 2.7 V to 3.6 V, internal reference on |
| IDD (All Power-Down Modes) | 0.2 | 1 | 1 | μA | VDD = 2.7 V to 3.6 V, all four DACs powered down |
| Output Voltage Settling Time | 6 | 10 | μs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 1.5 | V/μs | |||
| Input Low Voltage, VINL | 0.8 | V | VDD = 5 V | ||
| Input High Voltage, VINH | 2 | V | VDD = 5 V | ||
| Output Low Voltage, VOL | 0.4 | V | ISINK = 2 mA | ||
| Output High Voltage, VOH | VDD − 1 | V | ISOURCE = 2 mA |
Key Features
- Quad, 16-bit DAC with on-chip 1.25 V or 2.5 V reference (5 ppm/°C)
- Single 2.7 V to 5.5 V supply operation
- Guaranteed monotonic by design
- Power-on reset to 0 V or midscale
- Power-down capability with current consumption as low as 400 nA at 5 V
- Software-selectable output loads in power-down mode
- Simultaneous update of all DAC outputs using the LDAC function
- Asynchronous CLR to clear all DACs to 0 V, midscale, or full scale
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, up to 50 MHz clock rate
- On-chip precision output amplifier enabling rail-to-rail output swing
Applications
The AD5666BRUZ-1REEL7 is suitable for a variety of applications requiring high precision and low power consumption, such as:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Test and measurement equipment
Q & A
- What is the voltage range for the supply of the AD5666BRUZ-1REEL7?
The AD5666BRUZ-1REEL7 operates from a single 2.7 V to 5.5 V supply.
- What is the resolution of the AD5666BRUZ-1REEL7 DAC?
The AD5666BRUZ-1REEL7 is a 16-bit DAC.
- What is the full-scale output voltage for the AD5666-1 variant?
The full-scale output voltage for the AD5666-1 variant is 2.5 V.
- How does the power-on reset function work?
The power-on reset circuit ensures that the DAC output powers up to 0 V (POR pin low) or to midscale (POR pin high) and remains at this level until a valid write takes place.
- What is the current consumption in power-down mode?
In power-down mode, the current consumption is typically 400 nA at 5 V.
- Can the outputs of all DACs be updated simultaneously?
Yes, the outputs of all DACs can be updated simultaneously using the LDAC function.
- What is the clock rate of the serial interface?
The 3-wire serial interface operates at clock rates of up to 50 MHz.
- Is the AD5666BRUZ-1REEL7 compatible with standard interface standards?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the temperature range for the AD5666BRUZ-1REEL7?
The temperature range is −40°C to +105°C.
- What package type is the AD5666BRUZ-1REEL7 available in?
The AD5666BRUZ-1REEL7 is available in a 14-lead TSSOP package.
