LM311M/NOPB National Semiconductor, LM311M/NOPB Datasheet - Page 11
![IC VOLTAGE COMPARATOR 8-SOIC](/photos/6/56/65640/pkg_m08a_sml.jpg)
LM311M/NOPB
Manufacturer Part Number
LM311M/NOPB
Description
IC VOLTAGE COMPARATOR 8-SOIC
Manufacturer
National Semiconductor
Type
General Purposer
Datasheet
1.LM311MXNOPB.pdf
(23 pages)
Specifications of LM311M/NOPB
Number Of Elements
1
Output Type
DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
Voltage - Supply
5 V ~ 30 V, ±2.5 V ~ 15 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Amplifier Type
Comparator
Current, Input Bias
100 nA
Current, Input Offset
6 nA
Current, Output
50 mA
Current, Supply
-4.1 to +5.1 mA
Package Type
DIP-8
Power Dissipation
500 mW
Temperature, Operating, Range
0 to +70 °C
Voltage, Gain
200 V/mV
Voltage, Input
±15 V
Voltage, Input Offset
2 mV
Voltage, Supply
5 to 36 V
Comparator Type
General Purpose
No. Of Comparators
1
Response Time
200ns
Ic Output Type
DTL, MOS, RTL, TTL
Supply Current
5.1mA
Supply Voltage Range
5V To 36V
Amplifier Case Style
SOIC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LM311M
*LM311M/NOPB
LM311MNS
*LM311M/NOPB
LM311MNS
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8.0 Application Hints
7. When both inputs of the LM111 are connected to active
Pin connections shown are for LM111H in the H08 hermetic package
Pin connections shown are for LM111H in the H08 hermetic package
signals, or if a high-impedance signal is driving the
positive input of the LM111 so that positive feedback
would be disruptive, the circuit of Figure 1 is ideal. The
positive feedback is to pin 5 (one of the offset adjust-
ment pins). It is sufficient to cause 1 to 2 mV hysteresis
and sharp transitions with input triangle waves from a
few Hz to hundreds of kHz. The positive-feedback signal
across the 82Ω resistor swings 240 mV below the posi-
(Continued)
FIGURE 2. Conventional Positive Feedback
FIGURE 1. Improved Positive Feedback
11
8. These application notes apply specifically to the LM111,
tive supply. This signal is centered around the nominal
voltage at pin 5, so this feedback does not add to the
V
trimmed out, using the 5 kΩ pot and 3 kΩ resistor as
shown.
LM211, LM311, and LF111 families of comparators, and
are applicable to all high-speed comparators in general,
(with the exception that not all comparators have trim
pins).
OS
of the comparator. As much as 8 mV of V
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OS
can be