The AD5680, a member of the nanoDAC® family, is a single, 18-bit buffered voltage-out digital-to-analog converter that operates from a single 4.5 V to 5.5 V supply and is 18-bit monotonic.
The AD5680 requires an external reference voltage to set the output range of the DAC. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V (AD5680-1) or to mid-scale (AD5680-2) and remains there until a valid write takes place.
The low power consumption of this part in normal operation makes it ideally suited to portable battery-operated equipment. The power consumption is 1.6 mW at 5 V.
The AD5680 on-chip precision output amplifier allows rail-to-rail output swing to be achieved. For remote sensing applications, the output amplifier’s inverting input is available to the user.
The AD5680 uses a versatile 3-wire serial interface that operates at clock rates up to 30 MHz, and is compatible with standard SPI®, QSPI™, MICROWIRE™ and DSP interface standards.
- Single 18-bit nanoDAC
- 18-bit monotonic
- 12-bit accuracy guaranteed
- Tiny 8-lead SOT-23 package
- Power-on reset to zero scale/midscale
- 4.5 V to 5.5 V power supply
- Serial interface
- Rail-to-rail operation
- SYNC interrupt facility
- Temperature range -40°C to +105°C
- Applications:
- Closed-loop process control
- Low bandwidth data acquisition systems
- Portable battery-powered instruments
- Gain and offset adjustment
- Precision setpoint control
