Overview
The AD5668ARUZ-2 is a high-precision, octal, 16-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This device is part of the AD5628/AD5648/AD5668 family and is known for its low power consumption and high accuracy. It features an on-chip reference with a 5 ppm/°C temperature coefficient, ensuring stable output over a wide temperature range. The AD5668ARUZ-2 operates from a single 2.7 V to 5.5 V supply and is available in a 16-lead TSSOP package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Number of DAC Channels | 8 |
| Supply Voltage | 2.7 V to 5.5 V |
| On-Chip Reference | 1.25 V or 2.5 V, 5 ppm/°C |
| Full-Scale Output Range | 2.5 V or 5 V |
| Settling Time | 7 μs |
| Interface | SPI, QSPI, MICROWIRE, DSP |
| Integral Nonlinearity (INL) | ±8 LSB |
| Differential Nonlinearity (DNL) | ±1 LSB |
| Zero-Code Error | ±6 mV to ±19 mV |
| Full-Scale Error | −0.2% to −1% FSR |
| Power Consumption (Power-Down) | 400 nA at 5 V |
| Package | 16-lead TSSOP |
Key Features
- Octal, 16-bit DAC with high accuracy and low noise performance.
- On-chip precision output amplifier enabling rail-to-rail output swing.
- On-chip reference with 5 ppm/°C temperature coefficient.
- Power-on reset circuit ensuring DAC output powers up to 0 V or midscale.
- Power-down feature reducing current consumption to 400 nA at 5 V.
- Software-selectable output loads while in power-down mode.
- Simultaneous update of all DAC channels using the LDAC function.
- Asynchronous CLR function to update all DACs to a user-programmable code.
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
Applications
The AD5668ARUZ-2 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 (AD5668-EP model supports AQEC standard).
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD5668ARUZ-2 DAC?
The AD5668ARUZ-2 has a resolution of 16 bits. - How many DAC channels does the AD5668ARUZ-2 have?
The AD5668ARUZ-2 has 8 DAC channels. - What is the supply voltage range for the AD5668ARUZ-2?
The supply voltage range is from 2.7 V to 5.5 V. - What is the temperature coefficient of the on-chip reference?
The on-chip reference has a temperature coefficient of 5 ppm/°C. - What is the full-scale output range of the AD5668ARUZ-2?
The full-scale output range can be either 2.5 V or 5 V, depending on the reference configuration. - How long does it take for the DAC to settle?
The settling time is 7 μs. - What interfaces are supported by the AD5668ARUZ-2?
The device supports SPI, QSPI, MICROWIRE, and DSP interfaces. - What is the power consumption in power-down mode?
In power-down mode, the device consumes 400 nA at 5 V. - Can the DAC channels be updated simultaneously?
Yes, all DAC channels can be updated simultaneously using the LDAC function. - Is the AD5668ARUZ-2 available in different packages?
Yes, it is available in a 16-lead TSSOP package, among others.
