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LM311P

Part # LM311P
Description SINGLE STROBED DIFFERENTIAL COMPARATOR
Category IC
Availability In Stock
Qty 35
Qty Price
1 + $0.39395
Manufacturer Available Qty
Texas Instruments
Date Code: 0327
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Texas Instruments
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

LM111, LM211, LM311
DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007H – SEPTEMBER 1973 – REVISED AUGUST 2003
10
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 8
60
40
20
0
0510
– Output Current and Dissipation – mA
80
100
120
15
I
O
V
CC±
= ±15 V
t 10 s
V
ID
= –10 mV
T
A
= 25°C
V
O
– Output Voltage – V
140
160
300
200
100
0
– Output Dissipation – mW
400
500
600
P
O
700
800
OUTPUT CURRENT AND DISSIPATION
vs
OUTPUT VOLTAGE
P
O
(right scale)
I
O
(left scale)
Figure 9
3
2
1
0
0510
4
5
6
15
T
A
= 25°C
No Load
V
CC+
– Positive Supply Voltage – V
V
ID
= –10 mV
POSITIVE SUPPLY CURRENT
vs
POSITIVE SUPPLY VOLTAGE
I
CC+
– Positive Supply Current – mA
V
ID
= 10 mV
–3
–2
–1
0
0 –5 –10
–4
–5
–6
–15
NEGATIVE SUPPLY CURRENT
vs
NEGATIVE SUPPLY VOLTAGE
V
CC–
– Negative Supply Voltage – V
I
CC–
– Negative Supply Current – mA
V
ID
= 10 mV or –10 mV
T
A
= 25°C
No Load
Figure 10
LM111, LM211, LM311
DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007H – SEPTEMBER 1973 – REVISED AUGUST 2003
11
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
APPLICATION INFORMATION
Figure 11 through Figure 29 show various applications for the LM111, LM211, and LM311 comparators.
Figure 11. 100-kHz Free-Running Multivibrator
V
CC+
39 k
1200 pF
20 k 1 k
10 k
20 k
Square Wave
Output
(fanout to two
Series 54 gates,
or equivalent)
NOTE: If offset balancing is not used,
the BALANCE and BAL/STRB
pins should be shorted together.
Figure 12. Offset Balancing
3 k
3 k
V
CC+
BALANCE
BAL/
STRB
Figure 13. Strobing
1 k
BAL/STRB
TTL
Strobe
2N2222
NOTE: Do not connect strobe pin
directly to ground, because the
output is turned off whenever
current is pulled from the strobe
pin.
Figure 14. Zero-Crossing Detector
V
CC+
Input
V
CC–
20 k
Output
LM111, LM211, LM311
DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007H – SEPTEMBER 1973 – REVISED AUGUST 2003
12
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
APPLICATION INFORMATION
Resistor values shown are for a 0- to 30-V logic swing and a 15-V threshold.
May be added to control speed and reduce susceptibility to noise spikes
5 V
1 k
240 k
82 k
47 k
82 k
Output to TTL
Input
Figure 15. TTL Interface With High-Level Logic
Figure 16. Detector for Magnetic Transducer
5 V
2 k
4.5 k
1 k
Magnetic
Transducer
Output
to TTL
Figure 17. 100-kHz Crystal Oscillator
0.1 µF
50 k
V
CC+
2 k
100 k
100 k
100 kHz
Output
10 pF
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