LM311 Datasheet, PDF (1/8 Pages) ON Semiconductor – HIGH PERFORMANCE VOLTAGE COMPARATORS

Highly Flexible 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
referenced either to ground, the VCC or the VEE supply. This flexibility makes
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.
Order this document by LM311/D
LM311
LM211
HIGH PERFORMANCE
VOLTAGE COMPARATORS
SEMICONDUCTOR
TECHNICAL DATA
Typical Comparator Design Configurations
Split Power Supply with Offset Balance
3.0 k ^VCC
Single Supply
VCC
Inputs
5.0 k
5
2
+
3_–
6 ₈₇
1
4
VEE
RL
Output
Inputs
2
8
+
7
3
–
1
VEE 4
RL
Output
Ground–Referred Load
VCC
2
Inputs ₃
+⁸ ₇
–₁
4 _RL
Output
VEE
Input polarity is reversed when
Gnd pin is used as an output.
Load Referred to Negative Supply
VCC
Inputs
2
+
8
7
3_{– 1}
4 ^RL
Output
VEE
Input polarity is reversed when
Gnd pin is used as an output.
Load Referred to Positive Supply
Inputs
2
+
3_–
4
VEE
VCC
8
7
1
RL
Output
Strobe Capability
VCC
2₊
Inputs _{3 –}
8
7
1
6
4
VEE
RL
Output
TTL Strobe
1.0 k
8
1
N SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
Gnd 1
2
Inputs
+
3–
VEE 4
8 ^VCC
7 _Output
6 _{Balance/Strobe}
5 Balance
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
LM211D
LM311D
LM311N
TA = 25° to +85°C
TA = 0° to +70°C
SO–8
SO–8
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 5
1