
Philips Semiconductors
Voltage comparator
Product data
AU211/LM111/211/311/311B
TYPICAL APPLICATIONS
INPUT
BAL
R2
R1
5 3 kΩ
2
+
6
LM311
3 kΩ
8
3–
17
V+ = 5 V
TO
MOS
LOGIC
4
R3
10 kΩ
R2
1 kΩ
R1
4.5 kΩ
2+
8
7
LM311
3–
1
4
V+ 5 V
R3
2 kΩ
TTL
OUTPUT
V– = 10V
MAGNETIC
PICKUP
* 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.
Zero Detector
Driving MOS Logic
Detector for Magnetic
Transducer
Figure 3. Typical Applications
V+ = 5 V
R3
R1
240 kΩ
INPUT
82 kΩ
2
+
8
7
LM311
C1
3–
1
4
R2
47 kΩ
R4
82 kΩ
R5
1 kΩ
TO TTL
OUTPUT
TTL Interface with
High Level Logic
SL00064
2003 Sep 30
5