AD5757

www.DataSheet4U.com Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity Preliminary Technical Data FEATURES 16/12-Bit Resolution and Monotonicity Dynamic Power Control for Thermal Management IOUT Range: 0mA-20mA, 4mA–20mA or 0mA–24mA ±0.05% Total Unadjusted Error (TUE) Max User programmable Offset and Gain On Chip Diagnostics On-Chip Reference (±5 ppm/°C Max) −40°C to +105°C Temperature Range AD5757/AD5737 GENERAL DESCRIPTION The AD5757/AD5737 is a quad, current output DAC, which operates with a power supply of up to +33v. On chip dynamic power control minimizes package power dissipation in current mode. This is achieved by regulating the voltage on the output driver from between 7V-30V. Each channel has a corresponding CHART pin so that HART signals can be coupled onto the AD5757/AD5737’s current output. The part uses a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and that is compatible with standard SPI®, QSPI™, MICROWIRE™, DSP and microcontroller interface standards. The interface also features optional CRC-8 packet error checking as well as a watchdog timer that monitors activity on the interface. Table 1. Complementary Devices Part No. ADR445 ADP1871 Description 5V, Ultralow Noise, LDO XFET Voltage Reference with Current Sink and Source Synchronous Buck Controller with Constant On-Time, Valley Current Mode, and Power Save Mode APPLICATIONS Process Control Actuator Control PLC’s HART Network Con...