LM612 National Semiconductor, LM612 Datasheet

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LM612

Manufacturer Part Number
LM612
Description
Dual-Channel Comparator and Reference
Manufacturer
National Semiconductor
Datasheet

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C 1995 National Semiconductor Corporation
LM612
Dual-Channel Comparator and Reference
General Description
The dual-channel comparator consists of two individual
comparators having an input voltage range that extends
down to the negative supply voltage V
open-collector output can be driven low by either half of the
LM612 This configuration makes the LM612 ideal for use
as a window comparator The input stages of the compara-
tor have lateral PNP input transistors which maintain low
input currents for large differential input voltages and swings
above V
The 1 2V voltage reference referred to the V
two-terminal shunt-type band-gap similar to the LM185-1 2
series with voltage accuracy of
ence features operation over a shunt current range of 17 A
to 20 mA low dynamic impedance and broad capacitive
load range
As a member of National’s Super-Block
LM612 is a space-saving monolithic alternative to a multi-
chip solution offering a high level of integration without sac-
rificing performance
Connection Diagram
Ordering Information
For information about surface-mount packaging of this device please contact the Analog Product Marketing group at
National Semiconductor Corporation headquarters
Super-Block
g
80 ppm C Max
g
150 ppm C Max
0 6% at 25 C
2 0% at 25 C
Tolerances
Reference
TM
a
is a trademark of National Semiconductor Corporation
b
TL H 11058
55 C
g
LM612AMJ 883
0 6% available The refer-
LM612AMN
LM612MN
(Note 13)
s
Military
T
J s
b
Temperature Range
a
TM
b
The common
125 C
terminal is a
family the
Top View
b
40 C
Features
COMPARATORS
Y
Y
Y
Y
Y
REFERENCE
Y
Y
Y
Y
Applications
Y
Y
Y
LM612AIN
Industrial
LM612IN
LM612IM
Low operating current
Wide supply voltage range
Open-collector outputs
Input common-mode range
Wide differential input voltage
Fixed output voltage
Tight initial tolerance available
Wide operating current range
Tolerant of load capacitance
Voltage window comparator
Power supply voltage monitor
Dual-channel fault monitor
s
T
J
a
85 C
TL H 11058 – 1
Surface Mount
8-Pin Narrow
Ceramic DIP
Molded DIP
Molded DIP
Package
8-Pin
8-Pin
8-Pin
V
RRD-B30M115 Printed in U S A
b
17 A to 20 mA
to (V
February 1995
g
Package
0 6% (25 C)
Number
M08A
a
N08E
N08E
J08A
NSC
4V to 36V
b
300 A
g
1 24V
1 8V)
36V

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LM612 Summary of contents

Page 1

... V open-collector output can be driven low by either half of the LM612 This configuration makes the LM612 ideal for use as a window comparator The input stages of the compara- tor have lateral PNP input transistors which maintain low ...

Page 2

... Soldering Information b pin) N Package 36V (Max) Soldering (10 seconds (Min) b ESD Tolerance (Note Operating Temperature Range 36V g LM612AI LM612I (Note 4) LM612AM LM612M T 150 150 C These specifications apply for V b GND limits in boldface type apply over the ...

Page 3

... To dehysterize the reference that is minimize the OUT LM612AM LM612M LM612AI LM612I Units Limits Limits (Note 8) (Note 8) 1 2365 1 2191 V Min 1 2515 1 2689 V Max ( 0 6 ppm C ...

Page 4

Simplified Schematic Diagrams Reference Comparator Bias 11058 – 11058 – 3 ...

Page 5

Typical Performance Characteristics (Reference unless otherwise noted Reference Voltage vs Temp Reference Voltage vs Current and Temperature Reference AC Stability Range Reference Power-Up Time Reference Voltage Accelerated Reference Drift vs Time ...

Page 6

Typical Performance Characteristics (Comparators Supply Current vs Supply Voltage Output Saturation Voltage vs Sink Current Small-Signal Response Times Non-Inverting Input Positive Transition Large-Signal Response Times Inverting Input ...

Page 7

... Do not as- sume that no specification means no hysteresis COMPARATORS Either comparator or the reference may be biased in any way with no effect on the other sections of the LM612 ex 11058 – 8 cept when a substrate diode conducts (see Electrical Char- acteristics Note 3) For example one or both inputs of one ...

Page 8

... These features make the inputs look like high impedances to input sources producing large differential and common-mode voltages Typical Applications Power Supply Monitor with Indicator The guaranteed common-mode input voltage range for an LM612 8V) over temperature s ...

Page 9

... Physical Dimensions inches (millimeters) 8-Pin Ceramic Dual-In-Line Package (J) Order Number LM612AMJ 883 NS Package Number J08A 8-Pin Surface Mount Package (M) Order Number LM612IM NS Package Number M08A 9 ...

Page 10

... Physical Dimensions inches (millimeters) (Continued) 8-Pin Molded Dual-In-Line Package (N) Order Number LM612AMJ 883 LM612AMN LM612AIN LM612MN or LM612IN LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL ...

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