The AD5306 are quad 8-bit buffered voltage output DACs in 16-lead TSSOP packages that operate from a single 2.5V to 5.5V supply, consuming 500uA at 3V. Their on-chip output amplifiers allow rail-to-rail output swing with a slew rate of 0.7V/us. 2-wire serial interface, which operates at clock rates up to 400kHz, is used. This interface is SMBus-compatible at VDD <3.6V. Multiple devices can be placed on the same bus.
Each DAC has a separate reference input that can be configured as buffered or unbuffered. The outputs of all DACs can be updated simultaneously using the asynchronous LDAC input. The parts incorporate a power-on reset circuit that ensures the DAC outputs power up to 0V and remain there until a valid write to the device takes place. The software clear function clears all DACs to 0V. The parts contain a power-down feature that reduces the current consumption of the device to 300nA at 5V (90nA at 3V).
- Four 12-bit DACS in 16-lead TSSOP
- Low power, single supply operation from 2.5V to 5.5V supply
- Consumes 1.2mW at 3V and 2.5mW at 5V
- Rail-to-Rail output with a slew rate of 0.7V/us
- Multiple devices can share the same bus
- 2-wire serial interface with clock rates up to 400kHz
- Guaranteed monotonic by design
- Power-on-reset to zero volts
- Double-buffered input logic
- Output range of O-VREF or O-2VREF
- 2-wire (I2C compatible) serial interface
- Data readback facility
- Software clear facility
- Simultaneous update via LDAC pin (active low)
- Buffered/unbuffered reference input options for each DAC
