EVAL-AD5750EBZ View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

EVAL-AD5750EBZ

Industrial Current/Voltage Output Driver with Programmable Ranges

Analog Devices 

Prev 31 32 33 34 35 36

AD5750/AD5750-1/AD5750-2

GALVANICALLY ISOLATED INTERFACE

In many process control applications, it is necessary to provide

an isolation barrier between the controller and the unit being

controlled to protect and isolate the controlling circuitry from

any hazardous common-mode voltages that may occur. The

iCoupler® family of products from Analog Devices, Inc., provides

voltage isolation in excess of 5.0 kV. The serial loading structure

of the AD5750/AD5750-1/AD5750-2 makes it ideal for isolated

interfaces because the number of interface lines is kept to a

minimum. Figure 58 shows a 4-channel isolated interface

using an ADuM1400. For further information, visit

www.analog.com/icouplers.

CONTROLLER

ADuM14001

SERIAL VIA

CLOCK OUT

VOA

TO

SCLK

SERIAL VIB

DATA OUT

VOB

TO

SDIN

SYNC OUT VIC

VOC

TO

SYNC

CONTROL OUT VID

VOD

TO

CLEAR

1ADDITIONAL PINS OMITTED FOR CLARITY.

Figure 58. Isolated Interface

Data Sheet

MICROPROCESSOR INTERFACING

Microprocessor interfacing to the AD5750/AD5750-1/AD5750-2

is via a serial bus that uses a protocol that is compatible with

microcontrollers and DSP processors. The communication

channel is a 3-wire (minimum) interface consisting of a clock

signal, a data signal, and a SYNC signal. The AD5750/AD5750-1/

AD5750-2 require a 16-bit data-word with data valid on the

falling edge of SCLK.

Rev. D | Page 32 of 36

Share Link: