EVAL-AD5755SDZ Просмотр технического описания (PDF) - Analog Devices

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EVAL-AD5755SDZ

Quad Channel, 16-Bit, Serial Input, 4 mA to 20 mA and Voltage Output DAC, Dynamic Power Control

Analog Devices 

AD5755

Data Sheet

DETAILED FUNCTIONAL BLOCK DIAGRAM

AVCC

5.0V

AVSS

AVDD

–15V AGND +15V

SWA

VBOOST_A

DVDD

DGND

LDAC

CLEAR

SCLK

SDIN

SYNC

SDO

FAULT

ALERT

REFOUT

REFIN

POWER-ON

RESET

INPUT

SHIFT

REGISTER

AND

16

CONTROL

STATUS

REGISTER

WATCHDOG

TIMER

(SPI ACTIVITY)

VREF

REFERENCE

BUFFERS

AD1

AD5755

AD0

INPUT

REG A

+

GAIN REG A

OFFSET REG A

DAC 16

REG A

DC-TO-DC

CONVERTER

POWER 7.4V TO 29.5V VSEN1

CONTROL

REG

VSEN2

R2

R3

DAC A

IOUT_A

R1

RSET_A

DAC CHANNEL A

DAC CHANNEL B

DAC CHANNEL C

DAC CHANNEL D

VOUT

RANGE

SCALING

30kΩ

+VSENSE_A

VOUT_A

–VSENSE_A

IOUT_B, IOUT_C, IOUT_D

RSET_B, RSET_C, RSET_D

SWB, SWC, SWD

Figure 2.

+VSENSE_B, +VSENSE_C, +VSENSE_D

VOUT_B, VOUT_C, VOUT_D

VBOOST_B, VBOOST_C, VBOOST_D

Rev. C | Page 4 of 52

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