LM211, LM311
Single 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 V
CC
or the V
EE
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, therefore, the LM211/LM311 can be used to drive relays,
lamps or solenoids.
Features
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MARKING
DIAGRAMS
8
PDIP−8
N SUFFIX
CASE 626
1
1
8
LM311AN
AWL
YYWWG
•
These Devices are Pb−Free and are RoHS Compliant
8
3.0 k
V
CC
V
CC
5.0 k
5
2
R
L
6
8 7
Output
1
Inputs
2
+
3
V
EE
-
4
8
7
1
R
L
Output
8
1
+
−
Inputs
SOIC−8
D SUFFIX
CASE 751
1
LMx11
ALYW
G
3
4
V
EE
Split Power Supply with Offset Balance
Single Supply
V
CC
2
Inputs
3
V
CC
2
7
Inputs
Output
3
+
−
4
V
EE
8
1
R
L
+
−
4
8
7
1
R
L
Output
x
A
WL, L
YY, Y
WW, W
G
G
= 2 or 3
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
= Pb−Free Package
PIN CONNECTIONS
GND
Inputs
3
1
2
8
Input polarity is reversed when
GND pin is used as an output.
Ground−Referred Load
V
EE
Input polarity is reversed when
GND pin is used as an output.
Load Referred to Negative Supply
V
CC
Output
Balance/Strobe
Balance
+
−
7
6
5
V
EE
V
CC
4
(Top View)
2
V
CC
2
Inputs
3
4
V
EE
Load Referred to Positive Supply
Strobe Capability
Inputs
7
1
1.0 k
R
L
Output
3
+
−
4
6
8
7
1
R
L
Output
+
−
8
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
V
EE
TTL Strobe
Figure 1. Typical Comparator Design Configurations
©
Semiconductor Components Industries, LLC, 2012
August, 2012
−
Rev. 6
1
Publication Order Number:
LM211/D
LM211, LM311
ORDERING INFORMATION
Device
LM211DG
LM211DR2G
LM311DG
LM311DR2G
LM311NG
PDIP−8
(Pb−Free)
SOIC−8
(Pb−Free)
Package
Shipping
†
98 Units / Rail
2500 Units / Tape & Reel
98 Units / Rail
2500 Units / Tape & Reel
50 Units / Rail
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MAXIMUM RATINGS
(T
A
= +25°C, unless otherwise noted.)
Rating
Total Supply Voltage
Output to Negative Supply Voltage
Ground to Negative Supply Voltage
Input Differential Voltage
Input Voltage (Note 2)
Voltage at Strobe Pin
Power Dissipation and Thermal Characteristics
Plastic DIP
Derate Above T
A
= +25°C
Operating Ambient Temperature Range
Operating Junction Temperature
Storage Temperature Range
Symbol
V
CC
+⎥V
EE
⎥
V
O
−V
EE
V
EE
V
ID
V
in
−
P
D
R
qJA
T
A
T
J(max)
T
stg
−25
to +85
+150
−65
to +150
LM211
36
50
30
±30
±15
V
CC
to V
CC
−5
625
5.0
0 to +70
+150
−65
to +150
LM311
36
40
30
±30
±15
V
CC
to V
CC
−5
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mW
mW/°C
°C
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
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2
LM211, LM311
ELECTRICAL CHARACTERISTICS
(V
CC
= +15 V, V
EE
=
−15
V, T
A
= 25°C, unless otherwise noted) Note 1
LM211
Characteristic
Input Offset Voltage (Note 3)
R
S
≤
50 kW, T
A
= +25°C
R
S
≤
50 kW, T
low
≤
T
A
≤
T
high
*
Input Offset Current (Note 3) T
A
= +25°C
T
low
≤
T
A
≤
T
high
*
Input Bias Current T
A
= +25°C
T
low
≤
T
A
≤
T
high
*
Voltage Gain
Response Time (Note 4)
Saturation Voltage
V
ID
≤
−5.0
mV, I
O
= 50 mA, T
A
= 25°C
V
ID
≤−10
mV, I
O
= 50 mA, T
A
= 25°C
V
CC
≥
4.5 V, V
EE
= 0, T
low
≤
T
A
≤
T
high
*
V
ID
6≤6.0
mV, I
sink
≤
8.0 mA
V
ID
6≤10
mV, I
sink
≤
8.0 mA
Strobe ”On” Current (Note 5)
Output Leakage Current
V
ID
≥
5.0 mV, V
O
= 35 V, T
A
= 25°C, I
strobe
= 3.0 mA
V
ID
≥
10 mV,
V
O
= 35 V, T
A
= 25°C, I
strobe
= 3.0 mA
V
ID
≥
5.0 mV,
V
O
= 35 V, T
low
≤
T
A
≤
T
high
*
Input Voltage Range (T
low
≤
T
A
≤
T
high
*)
V
ICR
V
OL
Symbol
V
IO
Min
−
−
−
−
−
−
40
−
−
−
−
−
I
S
−
−
−
−
−14.5
Typ
0.7
−
1.7
−
45
−
200
200
0.75
−
0.23
−
3.0
0.2
−
0.1
−14.7
to
13.8
+2.4
−1.3
Max
3.0
4.0
10
20
100
150
−
−
1.5
−
0.4
−
−
10
−
0.5
+13.0
Min
−
−
−
−
−
−
40
−
−
−
−
−
−
−
−
−
−14.5
LM311
Typ
2.0
−
1.7
−
45
−
200
200
−
0.75
−
0.23
3.0
−
0.2
−
−14.7
to
13.8
+2.4
−1.3
Max
7.5
10
50
70
250
300
−
−
−
1.5
−
0.4
−
−
50
−
+13.0
mA
nA
nA
mA
V
nA
nA
V/mV
ns
V
Unit
mV
I
IO
I
IB
A
V
Positive Supply Current
Negative Supply Current
I
CC
I
EE
−
−
+6.0
−5.0
−
−
+7.5
−5.0
mA
mA
* LM211: T
low
=
−25°C,
T
high
= +85°C
LM311: T
low
= 0°C, T
high
= +70°C
1. Offset voltage, offset current and bias current specifications apply for a supply voltage range from a single 5.0 V supply up to
±15
V supplies.
2. This rating applies for
±15
V supplies. The positive input voltage limit is 30 V above the negative supply. The negative input voltage limit is
equal to the negative supply voltage or 30 V below the positive supply, whichever is less.
3. The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with a 1.0 mA
load. Thus, these parameters define an error band and take into account the “worst case” effects of voltage gain and input impedance.
4. The response time specified is for a 100 mV input step with 5.0 mV overdrive.
5. Do not short the strobe pin to ground; it should be current driven at 3.0 mA to 5.0 mA.
8
V
CC
Balance
Balance/Strobe
5
6
1.3 k
300
300
3.7 k
1.3 k
100
3.7 k
300
250
900
600
800
2
Inputs
3
730
340
1.3 k
1
1.3 k
5.4 k
4
V
EE
GND
5.0 k
7
200
Output
800
800
3.0 k
Figure 2. Circuit Schematic
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3
LM211, LM311
140
120
100
80
Normal
Pins 5 & 6 Tied
to V
CC
I IO , INPUT OFFSET CURRENT (nA)
I IB , INPUT BIAS CURRENT (nA)
V
CC
= +15 V
V
EE
= -15 V
5.0
V
CC
= +15 V
V
EE
= -15 V
Pins 5 & 6 Tied
to V
CC
4.0
3.0
2.0
40
0
-55
1.0
0
-55
Normal
-25
0
25
50
75
100
125
-25
0
25
50
75
100
125
T
A
, TEMPERATURE (°C)
T
A
, TEMPERATURE (°C)
Figure 3. Input Bias Current
versus Temperature
Figure 4. Input Offset Current
versus Temperature
140
I IB , INPUT BIAS CURRENT (nA)
COMMON MODE LIMITS (V)
120
100
80
60
40
20
0
-16
-12
-8.0
-4.0
0
4.0
8.0
12
16
V
CC
= +15 V
V
EE
= -15 V
T
A
= +25°C
V
CC
-0.5
-1.0
-1.5
Referred to Supply Voltages
0.4
0.2
V
EE
-55
-25
0
25
50
75
100
125
DIFFERENTIAL INPUT VOLTAGE (V)
T
A
, TEMPERATURE (°C)
Figure 5. Input Bias Current versus
Differential Input Voltage
Figure 6. Common Mode Limits
versus Temperature
VO , OUTPUT VOLTAGE (V)
VO , OUTPUT VOLTAGE (V)
+5.0 V
5.0
4.0
3.0
2.0
1.0
0
100
50
0
5.0 mV
20 mV
V
in
+5.0 V
*
)
500
W
V
O
2.0 mV
V
CC
= +15 V
V
EE
= -15 V
T
A
= +25°C
0
0.1
0.2
0.3
0.4
t
TLH
, RESPONSE TIME (ms)
0.5
0.6
5.0
4.0
3.0
2.0
1.0
0
0
-50
-100
5.0 mV
2.0 mV
20 mV
V
in
*
)
500
W
V
O
Vin ,INPUT VOLTAGE (mV)
Vin ,INPUT VOLTAGE (mV)
V
CC
= +15 V
V
EE
= -15 V
T
A
= +25°C
0
0.1
0.2
0.3
0.4
t
THL
, RESPONSE TIME (ms)
0.5
0.6
Figure 7. Response Time for
Various Input Overdrives
Figure 8. Response Time for
Various Input Overdrives
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4
LM211, LM311
VO , OUTPUT VOLTAGE (V)
VO , OUTPUT VOLTAGE (V)
Vin ,INPUT VOLTAGE (mV)
2.0 mV
V
EE
Vin ,INPUT VOLTAGE (mV)
15
10
5.0
0
-5.0
-10
-15
0
-50
20 mV
5.0 mV
V
CC
V
in
*
)
V
O
2.0 k
15
10
5.0
0
-5.0
-10
-15
100
50
0
0
V
CC
5.0 mV
2.0 mV
V
in
*
)
V
EE
V
O
2.0 k
20 mV
V
CC
= +15 V
V
EE
= -15 V
T
A
= +25°C
-100
0
1.0
t
TLH
, RESPONSE TIME (ms)
V
CC
= +15 V
V
EE
= -15 V
T
A
= +25°C
2.0
1.0
t
THL
, RESPONSE TIME (ms)
2.0
Figure 9. Response Time for
Various Input Overdrives
Figure 10. Response Time for
Various Input Overdrives
OUTPUT SHORT CIRCUIT CURRENT (mA)
150
T
A
= +25°C
125
100
75
Short Circuit Current
50
25
0
Power Dissipation
0.90
PD , POWER DISSIPATION (W)
V , SATURATION VOLTAGE (V)
OL
0.75
0.60
0.45
0.30
0.15
0
15
0.90
0.75
0.60
T
A
= -55°C
0.45
0.30
0.15
0
0
8.0
16
24
32
40
48
56
I
O
, OUTPUT CURRENT (mA)
T
A
= +25°C
T
A
= +125°C
0
5.0
10
V
O
, OUTPUT VOLTAGE (V)
Figure 11. Output Short Circuit Current
Characteristics and Power Dissipation
Figure 12. Output Saturation Voltage
versus Output Current
OUTPUT LEAKAGE CURRENT (mA)
100
POWER SUPPLY CURRENT (mA)
V
CC
= +15 V
V
EE
= -15 V
10
3.6
T
A
= +25°C
3.0
Positive Supply - Output Low
2.4
1.8
Positive and Negative Power Supply - Output H igh
1.2
0.6
0
45
65
85
105
125
0
5.0
10
15
20
25
30
T
A
, TEMPERATURE (°C)
V
CC
-V
EE
, POWER SUPPLY VOLTAGE (V)
1.0
Output V
O
= +50 V (LM211 only)
0.1
0.01
25
Figure 13. Output Leakage Current
versus Temperature
Figure 14. Power Supply Current
versus Supply Voltage
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