AD5737 Ver la hoja de datos (PDF) - Analog Devices

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AD5737

Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output DAC with Dynamic Power Control and HART Connectivity

Analog Devices 

Data Sheet

AD5737

DETAILED FUNCTIONAL BLOCK DIAGRAM

AV DD

AGND +15V

AV CC

5.0V

SWA

VBOOST_A

DVDD

DGND

LDAC

CLEAR

SCLK

SDIN

SYNC

SDO

FAULT

ALERT

REFOUT

REFIN

AD1

AD0

POWER-ON

RESET

INPUT

SHIFT

REGISTER

AND

12

CONTROL

STATUS

REGISTER

WATCHDOG

TIMER

(SPI ACTIVITY)

VREF

REFERENCE

BUFFERS

AD5737

DAC

DATA

+

REG A

GAIN REG A

OFFSET REG A

DAC CHANNEL A

DAC CHANNEL B

DAC CHANNEL C

DAC CHANNEL D

DC-TO-DC

CONVERTER

DYNAMIC

POWER

7.4V TO 29.5V VSEN1

CONTROL

VSEN2

DAC 12

R2

R3

INPUT

DAC A

REG A

IOUT_A

R1

RSET_A

CHARTA

IOUT_B, IOUT_C, IOUT_D

RSET_B, RSET_C, RSET_D

CHARTB, CHARTC, CHARTD

SWB, SWC, SWD

Figure 2.

VBOOST_B, VBOOST_C, VBOOST_D

Rev. B | Page 3 of 44

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