GENERAL DESCRIPTION

The AD5755-1 is a quad, voltage and current output DAC that operates with a power supply range from −26.4 V to +33 V. Onchip dynamic power control minimizes package power dissipation in current mode. This is achieved 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 AD5755-1.

FEATURES

16-bit resolution and monotonicity

Dynamic power control for thermal management

Current and voltage output pins connectable to a single terminal

Current output ranges: 0 mA to 20 mA, 4 mA to 20 mA, or 0 mA to 24 mA

±0.05 total unadjusted error (TUE) maximum

Voltage output ranges (with 20 overrange): 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V ±0.04 total unadjusted error (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