Order this document by LM311/D
HIGH PERFORMANCE
VOLTAGE COMPARATORS
The ability to operate from a single power supply of 5.0 V to 30 V or ±15 V
split supplies, as commonly used with operational amplifiers, makes the
LM211/LM311 a truly versatile comparator. Moreover, the inputs of the
device can be isolated from system ground while the output can drive loads
SEMICONDUCTOR
TECHNICAL DATA
referenced either to ground, the V
or the V supply. This flexibility makes
CC
EE
it possible to drive DTL, RTL, TTL, or MOS logic. The output can also switch
voltages to 50 V at currents to 50 mA. Thus the LM211/LM311 can be used to
drive relays, lamps or solenoids.
8
Typical Comparator Design Configurations
1
Split Power Supply with Offset Balance
N SUFFIX
PLASTIC PACKAGE
CASE 626
Single Supply
V
V
CC
3.0 k
CC
2
8
R
+
–
L
R
5.0 k
L
7
5
Inputs
Output
3
2
6
+
8
1
7
8
Inputs
Output
V
4
EE
3
1
–
1
4
V
D SUFFIX
PLASTIC PACKAGE
CASE 751
EE
(SO–8)
Ground–Referred Load
Load Referred to Negative Supply
V
V
CC
CC
2
2
3
8
8
+
+
–
7
7
Inputs
Inputs
3
–
Output
Output
1
1
PIN CONNECTIONS
R
4
L
4
R
L
V
Gnd
Inputs
1
2
3
8
7
6
CC
V
EE
V
EE
Output
+
Input polarity is reversed when
Gnd pin is used as an output.
Input polarity is reversed when
Gnd pin is used as an output.
–
Balance/Strobe
Balance
4
5
V
EE
Load Referred to Positive Supply
Strobe Capability
(Top View)
V
CC
V
8
CC
8
2
3
R
L
+
–
7
2
3
Inputs
Output
R
L
+
–
1
7
ORDERING INFORMATION
Operating
Inputs
6
Output
4
1
V
TTL Strobe
EE
Temperature Range
Device
Package
4
V
EE
LM211D
T
= 25° to +85°C
= 0° to +70°C
SO–8
1.0 k
A
LM311D
LM311N
SO–8
Plastic DIP
T
A
Motorola, Inc. 1996
Rev 5
1
MOTOROLA ANALOG IC DEVICE DATA