ADFS5758 16-Bit Current/Voltage Output DAC

Analog Devices Inc. ADFS5758 16-Bit Current/Voltage Output DAC is functional safety-approved for unipolar current output. The DAC is fully compliant with a systematic capability of SC3. This can be used in safety-related applications up to SIL 2, according to IEC 61508. This allows a single ADFS5758 to achieve SIL 2 for a non-redundant configuration. The safe state for the ADFS5758 is an open circuit/high impedance. The ADFS5758 operates with a power supply range from -33V minimum on AVSS to +33V maximum on AVDD1 with a maximum operating voltage between the two rails of 60V. On-chip dynamic power control (DPC) minimizes package power dissipation. This is achieved by regulating the supply voltage (V_DPC+) to the V_IOUT output driver circuitry from 4.95V to 27V using a buck DC-DC converter, optimized for minimum on-chip power dissipation. The CHART pin enables a HART^® signal to be coupled to the current output.