Overview
The AD5678ARUZ-2, produced by Analog Devices Inc., is a low-power, octal, buffered voltage-output Digital-to-Analog Converter (DAC) that integrates four 12-bit DACs and four 16-bit DACs within a single package. This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and is guaranteed monotonic by design. It features an on-chip reference with an internal gain of 2, and the option to use an external reference. The AD5678ARUZ-2 is housed in a 16-lead TSSOP package and is known for its power efficiency and versatile interface capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| Number of DACs | 8 (4 x 12-bit, 4 x 16-bit) |
| Supply Voltage | 2.7 V to 5.5 V |
| On-Chip Reference | 1.25 V or 2.5 V with 5 ppm/°C |
| Full-Scale Output | 2.5 V or 5 V |
| Interface | 3-wire serial (SPI, QSPI, MICROWIRE, DSP compatible) |
| Clock Rate | Up to 50 MHz |
| Power Consumption | 12.5 mW (typical at 5 V) |
| Power-Down Current | 400 nA at 5 V |
| Package | 16-lead TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | -40°C to 105°C |
| Output Type | Voltage - Buffered |
| Settling Time | 10 μs |
Key Features
- Low power consumption with a typical power consumption of 12.5 mW at 5 V.
- On-chip reference with internal gain of 2, and the option to use an external reference.
- Power-on reset circuit ensuring DAC output powers up to 0 V and remains at this level until a valid write takes place.
- Power-down feature reducing current consumption to 400 nA at 5 V.
- Software-selectable output loads while in power-down mode for any or all DAC channels.
- Simultaneous update of all DAC outputs using the LDAC function.
- Asynchronous CLR function to clear all DACs to a software-selectable code (0 V, midscale, or full scale).
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating at clock rates up to 50 MHz.
- Rail-to-rail output swing enabled by the on-chip precision output amplifier.
Applications
The AD5678ARUZ-2 is suitable for a variety of applications requiring precise and efficient digital-to-analog conversion. These include:
- Industrial control systems where multiple analog outputs are necessary.
- Aerospace and defense systems requiring high precision and reliability.
- Medical devices that need accurate and stable analog signals.
- Automotive systems, particularly in areas such as engine control and sensor interfaces.
- Test and measurement equipment where multiple channels of analog output are required.
Q & A
- What is the AD5678ARUZ-2?
The AD5678ARUZ-2 is a low-power, octal, buffered voltage-output DAC with four 12-bit DACs and four 16-bit DACs in a single package. - What is the supply voltage range for the AD5678ARUZ-2?
The supply voltage range is from 2.7 V to 5.5 V. - What types of references are available on the AD5678ARUZ-2?
The device has an on-chip reference with options for 1.25 V or 2.5 V, both with a 5 ppm/°C temperature coefficient. - How many DAC channels does the AD5678ARUZ-2 have?
The device has 8 DAC channels, consisting of four 12-bit DACs and four 16-bit DACs. - What is the interface type and clock rate of the AD5678ARUZ-2?
The device uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating at clock rates up to 50 MHz. - What is the power consumption of the AD5678ARUZ-2?
The typical power consumption is 12.5 mW at 5 V. - What is the power-down current of the AD5678ARUZ-2?
The power-down current is 400 nA at 5 V. - What is the package type of the AD5678ARUZ-2?
The device is housed in a 16-lead TSSOP package. - What is the operating temperature range of the AD5678ARUZ-2?
The operating temperature range is from -40°C to 105°C. - Does the AD5678ARUZ-2 support simultaneous update of all DAC channels?
Yes, the device supports simultaneous update of all DAC channels using the LDAC function. - Is the AD5678ARUZ-2 RoHS compliant?
Yes, the AD5678ARUZ-2 is RoHS compliant.
