AD5421 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD5421

16-Bit, Serial Input, Loop-Powered, 4 mA to 20 mA DAC

Analog Devices 

Data Sheet

3.3V

PRESSURE

SENSOR

SIMULATION

TEMPERATURE

SENSOR

PT100

ADuCM360

VDD 3.3V

ADC 0

MICRO-

CONTROLLER

LEXC

ADC 1

SRAM

FLASH

CLOCK

RESET

WATCHDOG

SPI

COM

ADC

DAC

AD5421

V-REGULATOR

TEMPERATURE

SENSOR

TEST CONNECTOR

T1: CD

T2: RTS

T3: COM

T4: TEST

AD5700

HART MODEM

AGND DGND

WATCHDOG

TIMER

CIN

VCC

3.3V

HART_OUT

C_HART

REF

ADC_IP

HART

INPUT

FILTER

C_SLEW

REGIN

VLOOP

COM

52Ω

LOOP–

Figure 51. Block Diagram—Analog Devices HART-Enabled Smart Transmitter Reference Demo Circuit

AD5421

+

–

Rev. H | Page 33 of 36

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