AD5755-1 Datasheet, PDF (1/34 Pages) Analog Devices – Quad Channel, 16-Bit, Serial Input, 4-20mA & Voltage Output DAC, Dynamic Power Control, HART Connectivity

Preliminary Technical Data
FEATURES
16/12-Bit Resolution and Monotonicity
Dynamic Power Control for Thermal Management
Voltage or Current Output on the Same Pin
IOUT Range: 0mA-20mA, 4mA–20mA or 0mA–24mA
±0.05% Total Unadjusted Error (TUE) Max
VOUT Range: 0-5V, 0-10V, ±5V, ±10V,±6V,±12V
±0.05% Total Unadjusted Error (TUE) Max
User programmable Offset and Gain
On Chip Diagnostics
On-Chip Reference (±5 ppm/°C)
−40°C to +105°C Temperature Range
APPLICATIONS
Process Control
Actuator Control
PLC’s
HART Network Connectivity
PRODUCT HIGHLIGHTS
Dynamic Power Control for Thermal management
16bit performance
Multi-channel
HART Compliant
Quad Channel, 16-Bit,
Serial Input, 4-20mA & Voltage Output DAC,
Dynamic Power Control, HART Connectivity
AD5755-1
GENERAL DESCRIPTION
The AD5755-1 is a quad, voltage and current output DAC,
which operates with a power supply range from -26v 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 AD5755-1’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.
Description
ADR445
5V, Ultralow Noise, LDO XFET Voltage
Reference with Current Sink and Source
ADP1871
Synchronous Buck Controller with Constant
On-Time, Valley Current Mode, and Power
Save Mode
Figure 1.
Rev. PrD
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