The AD5737 is a quad-channel current output DAC that operates with a power supply range from 10.8 V to 33 V. On-chip dynamic power control minimizes package power dissipation by regulating the voltage on the output driver from 7.4 V to 29.5 V using a dc-to-dc boost converter optimized for minimum on-chip power dissipation.
Each channel has a corresponding CHART pin so that HART signals can be coupled onto the current output of the AD5737.
The AD5737 uses a versatile 3-wire serial interface that operates at clock rates of up to 30 MHz and is compatible with standard SPI, QSPI™, MICROWIRE®, DSP, and microcontroller interface standards. The serial interface also features optional CRC-8 packet error checking, as well as a watchdog timer that monitors activity on the interface.
For a 16 bit equivalent solution, look at the AD5757. For a voltage and current configurable version, see the AD5755, AD5755-1 or AD5735.
- 12-Bit Resolution and Monotonicity
- Dynamic Power Control for Thermal Management or external PMOS mode
- IOUT Range: 0mA-20mA, 4mA–20mA or 0mA–24mA
- ±0.1% (TUE) Maximum
- User programmable Offset and Gain
- On-Chip Diagnostics
- On-Chip Reference: ±10 ppm/°C maximum
- -40°C to +105°C Temperature Range
- Applications:
- Process control
- Actuator Control
- PLCs
- HART Network Connectivity
