Overview
The AD5678BRUZ-1, 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, allowing for flexible output voltage configurations. The AD5678BRUZ-1 is designed for applications requiring high precision and low power consumption, making it suitable for a variety of industrial and automotive uses.
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 |
| Power Consumption | Up to 12.5 mW |
| Max Operating Temperature | 105 °C |
| Interface | 3-wire serial (SPI, QSPI, MICROWIRE, DSP compatible) |
| Clock Rate | Up to 50 MHz |
| Package Type | 14-Lead TSSOP |
Key Features
- Low power consumption with a power-down feature reducing current to 400 nA at 5 V.
- On-chip precision output amplifier enabling rail-to-rail output swing.
- Power-on reset circuit ensuring DAC output powers up to 0 V.
- Asynchronous CLR function to clear all DACs to a software-selectable code (0 V, midscale, or full scale).
- User-selectable DAC channels for simultaneous update using the LDAC function.
- Software-selectable output loads while in power-down mode.
- Compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.
Applications
The AD5678BRUZ-1 is suitable for various applications requiring high precision and low power consumption, such as:
- Industrial control systems.
- Automotive systems.
- Medical devices.
- Aerospace and defense systems.
- Test and measurement equipment.
Q & A
- What is the supply voltage range of the AD5678BRUZ-1? The AD5678BRUZ-1 operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- How many DACs are integrated into the AD5678BRUZ-1? The AD5678BRUZ-1 includes four 12-bit DACs and four 16-bit DACs.
- What is the maximum operating temperature of the AD5678BRUZ-1? The maximum operating temperature is 105 °C.
- What is the power consumption of the AD5678BRUZ-1 in power-down mode? In power-down mode, the current consumption is reduced to 400 nA at 5 V.
- What interface standards is the AD5678BRUZ-1 compatible with? The AD5678BRUZ-1 is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the clock rate of the serial interface? The serial interface operates at clock rates of up to 50 MHz.
- Does the AD5678BRUZ-1 have an on-chip reference? Yes, the AD5678BRUZ-1 has an on-chip reference with an internal gain of 2.
- What is the full-scale output voltage of the AD5678BRUZ-1? The full-scale output voltage can be either 2.5 V or 5 V depending on the reference configuration.
- How does the power-on reset circuit function? The power-on reset circuit ensures that the DAC output powers up to 0 V and remains at this level until a valid write takes place.
- Can the DAC channels be updated simultaneously? Yes, the outputs of all DACs can be updated simultaneously using the LDAC function.
