Datasheet
Table Of Contents
AD5700/AD5700-1 Data Sheet
Rev. F | Page 20 of 24
Figure 32. Block Diagram—Analog Devices HART-Enabled Smart Transmitter Reference Demo Circuit
10435-029
ADC 0
PRESSURE
SENSOR
SIMULATION
TEMPERATURE
SENSOR
PT100
3.3V
ADC 1
ADC
DAC
ADuCM360
SRAM
FLASH
CLOCK
RESET
WATCHDOG
T1: CD
T2: RTS
T3: COM
T4: TEST
SPI
UART
AD5700
AD5421
V
CC
HART_OUT
REF
ADC_IP
3.3V
3.3V
V
DD
C
IN
C_HART
C_SLEW
HART
INPUT
FILTER
COM
V
-REGULA
TOR
TEMPERATURE
SENSOR
COM
REG
IN
V
LOOP
LOOP–
TEST CONNEC
TOR
+
–
50Ω
HART MODEM
MICRO-
CONTROLLER
WATCHDOG
TIMER
LEXC
DGNDAGND
4.7nF