ADR435 AD [Analog Devices], ADR435 Datasheet - Page 3

• Manufacturer Part Number: ADR435
• Description: Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output
• Manufacturer: AD [Analog Devices]

Data Sheet
DETAILED FUNCTIONAL BLOCK DIAGRAM
REFOUT
CLEAR
FAULT
ALERT
REFIN
DGND
LDAC
SYNC
SCLK
DV
SDIN
SDO
AD1
AD0
DD
(SPI ACTIVITY)
AD5735
AV
–15V
REFERENCE
WATCHDOG
POWER-ON
REGISTER
REGISTER
CONTROL
BUFFERS
STATUS
SS
RESET
INPUT
TIMER
SHIFT
V
AND
REF
AGND
12
AV
+15V
DD
DAC CHANNEL A
DAC CHANNEL B
DAC CHANNEL C
DAC CHANNEL D
REG A
DATA
AV
5.0V
DAC
CC
GAIN REG A
OFFSET REG A
+
REG A
INPUT
DAC
12
Rev. B | Page 3 of 48
Figure 2.
DAC A
SW
CONTROL
DYNAMIC
POWER
B
, SW
C
, SW
SCALING
RANGE
V
OUT
D
7.4V TO 29.5V V
SW
R2
R1
V
A
BOOST_B
30kΩ
, V
V
SEN1
CONVERTER
BOOST_A
BOOST_C
DC-TO-DC
, V
V
SEN2
BOOST_D
R3
I
R
+V
V
–V
I
R
±V
V
OUT_B
OUT_A
SET_B
OUT_B
SET_A
OUT_A
SENSE_B
SENSE_A
SENSE_A
, I
, R
,
OUT_C
V
SET_C
OUT_C
, ±V
, I
SENSE_
, R
OUT_D
,
V
SET_D
OUT_D
AD5735
C , ±V
SENSE_
D