Overview
The AD5668ARUZ-3REEL7 is a low-power, octal, 16-bit buffered voltage-output digital-to-analog converter (DAC) produced by Analog Devices Inc. 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 precision output amplifier that enables rail-to-rail output swing and includes an internal reference with a gain of 2, which can be software-enabled. The AD5668ARUZ-3REEL7 is available in a 16-lead TSSOP package and is suitable for a variety of applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 16 bits | ||||
| Relative Accuracy | ±8 | ±32 | LSB | See Figure 7 | |
| Differential Nonlinearity | ±1 | ±1 | LSB | Guaranteed monotonic by design | |
| Zero-Code Error | 6 | 19 | mV | All 0s loaded to DAC register | |
| Full-Scale Error | -0.2 | -1 | % FSR | All 1s loaded to DAC register | |
| Gain Error | ±1 | ±1 | % FSR | ||
| Gain Temperature Coefficient | ±2.5 | ±2.5 | ppm of FSR/°C | ||
| Offset Error | ±6 | ±19 | mV | ||
| Supply Voltage | 2.7 | 5.5 | V | ||
| Current Consumption (Normal Mode) | 1.0 | 1.5 | 1.5 | mA | Internal reference off, VDD = 2.7 V to 3.6 V |
| Current Consumption (All Power-Down Modes) | 0.2 | 1 | µA | VDD = 2.7 V to 3.6 V | |
| Output Voltage Settling Time | 2.5 | 7 | µs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 1.2 | V/µs | |||
| Interface | SPI, QSPI, MICROWIRE, DSP | Compatible with standard serial interfaces | |||
Key Features
- Octal, 16-bit DAC with on-chip precision output amplifier enabling rail-to-rail output swing
- On-chip 1.25 V or 2.5 V reference with 5 ppm/°C temperature coefficient, software-enabled
- Single 2.7 V to 5.5 V supply operation
- Low power consumption: 1.0 mA to 1.5 mA in normal mode and 0.2 µA to 1 µA in power-down mode
- Power-on reset to 0 V or midscale, and software-executable reset function
- Power-down capability with software-selectable output loads
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating up to 50 MHz clock rates
- Available in 16-lead TSSOP package
Applications
- Industrial control systems requiring precise analog output control
- Aerospace and defense applications where low power and high accuracy are critical
- Medical devices that need reliable and precise analog outputs
- Automotive systems for sensor calibration and control
- Test and measurement equipment where high resolution and accuracy are necessary
Q & A
- What is the resolution of the AD5668ARUZ-3REEL7 DAC?
The AD5668ARUZ-3REEL7 has a resolution of 16 bits.
- What is the supply voltage range for the AD5668ARUZ-3REEL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What type of interface does the AD5668ARUZ-3REEL7 use?
The device uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- What is the typical current consumption of the AD5668ARUZ-3REEL7 in normal mode?
The typical current consumption is 1.0 mA to 1.5 mA with the internal reference off, and 1.7 mA to 2.25 mA with the internal reference on.
- Does the AD5668ARUZ-3REEL7 have a power-down feature?
Yes, the device has a power-down capability that reduces the current consumption to 0.2 µA to 1 µA.
- What is the output voltage settling time of the AD5668ARUZ-3REEL7?
The output voltage settling time is typically 7 µs for ¼ to ¾ scale settling to ±2 LSB.
- Is the AD5668ARUZ-3REEL7 guaranteed monotonic by design?
Yes, the device is guaranteed monotonic by design.
- What is the temperature range for the AD5668ARUZ-3REEL7?
The device operates over a temperature range of −40°C to +105°C.
- What package type is the AD5668ARUZ-3REEL7 available in?
The device is available in a 16-lead TSSOP package.
- Does the AD5668ARUZ-3REEL7 have an on-chip reference?
Yes, the device has an on-chip 1.25 V or 2.5 V reference with a 5 ppm/°C temperature coefficient.
