Preliminary Technical Data
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
HART Network Connectivity
Dynamic Power Control for Thermal management
Serial Input, 4-20mA Output DAC,
Dynamic Power Control, HART Connectivity
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
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
5V, Ultralow Noise, LDO XFET Voltage
Reference with Current Sink and Source
Synchronous Buck Controller with Constant
On-Time, Valley Current Mode, and Power
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