Datasheet

Data Sheet AD5751
Rev. B | Page 3 of 32
FUNCTIONAL BLOCK DIAGRAM
C
LE
A
R
VSEN
SE+
V
O
UT
D
VC
C GND AVDD GND COMP1 COMP2
CL
R
SEL
HW SELECT
V
IN
VREF
OVERTEMP
VOUT SHORT FAULT
IOUT OPEN FAULT
RESET
R2
R
SET
A VDD
R3
AD5751
07269-001
IOUT
*
DE
NOT
ES SHARED P
IN. SOFTWARE MODE DENO
TED
BY R
EGULAR TEXT,
HARDWARE MODE
DENOTED
BY IT
ALI
C TEXT. FOR EX
AMPLE
, FOR FAULT/TEMP PIN, IN S
OFTWAR
E MODE, THIS
PIN
TAKES ON FAULT FUNCTION
. IN HARDW
ARE MODE, TH
IS P
IN TAKES ON TEMP FUNCTIO
N.
POWE
R-
O
N RESET
IOU
T
OPEN FAULT
IO
UT
RAN
GE
S
CAL
ING
S
TA
T
US
RE
GI
ST
ER
VOUT
S
HO
RT FAULT
V
OU
T RAN
G
E
SCALING
INPUT SHIFT
REGISTER
AN
D
C
ON
T
RO
L
LOGIC
SCLK/OUTEN*
SD
I
N/
R0
*
SYNC
/
RSET
*
S
DO
/V
F
AUL
T
*
FAU
LT/T
EMP*
NC/IFAULT*
AD2/R1* AD1/R2* AD0/
R3*
REXT1
REXT2
Figure 1. Functional Block Diagram