Datasheet

Internal Reference (MAX4211)
The MAX4211 features a 1.21V bandgap reference out-
put, stable over supply voltage and temperature.
Typically, the reference output is connected to one of
the comparators’ inputs. This is the comparison refer-
ence voltage. If a lower reference voltage is needed,
use an external voltage-divider. The reference can
source or sink a load current up to 100µA.
MAX4210/MAX4211
High-Side Power and
Current Monitors
______________________________________________________________________________________ 21
+
-
MAX4211A
MAX4211B
MAX4211C
IOUT
V
CC
+
RS-
-
R
SENSE
V
SENSE
LOAD
1.21V
REFERENCE
POUT
REF
2.7V TO
5.5V
+
-
4V TO
28V
CIN1+
INHIBIT
COUT1
COUT2
LE
CIN1-
CIN2+
R5
R4
R2
R7
R
P
V
PULLUP
R6
V
PULLUP
R3
C1
R1
CIN2-
GND
RS+
25:1
Typical Operating Circuit