AD5672R datasheet(32/34 Pages) AD

Part #	AD5672R

Description	Octal, 12-/16-Bit nanoDAC with ppm/째C Reference, SPI Interface

PDF	34 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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32 / 34 page

AD5672R/AD5676R

Data Sheet

Rev. B | Page 32 of 34

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. iCoupler®

products from Analog Devices provide voltage isolation in excess

of 2.5 kV. The serial loading structure of the AD5672R/AD5676R

makes the devices ideal for isolated interfaces because the number

of interface lines is kept to a minimum. Figure 72 shows a

4-channel isolated interface to the AD5672R/AD5676R using

an ADuM1400. For further information, visit

www.analog.com/icoupler.

ENCODE

SERIAL

CLOCK IN

CONTROLLER

ADuM14001

SERIAL

DATA OUT

SYNC

LOAD DAC

1ADDITIONAL PINS OMITTED FOR CLARITY.

OUT

DECODE

SCLK

SDI

LDAC

VIA

VOA

ENCODE

DECODE

VIB

VOB

ENCODE

DECODE

VIC

VOC

ENCODE

DECODE

VID

VOD

SYNC

Figure 72. Isolated Interface

AD5672R Datasheet(PDF) 32 Page - Analog Devices

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