LM615 National Semiconductor, LM615 Datasheet

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LM615

Manufacturer Part Number
LM615
Description
LM615 Quad Comparator and Adjustable Reference
Manufacturer
National Semiconductor
Datasheet

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C 1995 National Semiconductor Corporation
LM615 Quad Comparator and Adjustable Reference
General Description
The comparators have an input range which extends to the
negative supply and have open-collector outputs Improved
over the LM139 series the input stages of the comparators
have lateral PNP input transistors which enable low input
currents for large differential input voltages and swings
above V
The voltage reference is a three-terminal shunt-type band-
gap and is referred to the V
gram the reference from 1 24V to 6 3V with accuracy of
g
shunt current range of 17 A to 20 mA low dynamic imped-
ance broad capacitive load range and cathode terminal
voltage ranging from a diode-drop below V
As a member of National’s Super-Block
LM615 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
Super-Block
80 ppm C max
150 ppm C max
g
g
0 6% available The reference features operation over a
0 6% at 25 C
2 0% at 25 C
Tolerances
Reference
TM
a
is a trademark of National Semiconductor Corporation
For information about surface-mount packaging of this device please contact the
Analog Product Marketing group at National Semiconductor Corp headquarters
b
55 C
M Package
LM615AMJ 883
Top View
b
TL H 11057
LM615AMN
LM615MN
terminal Two resistors pro-
(Note 13)
s
Military
T
J s
Temperature Range
a
125 C
b
TM
to above V
TL H 11057 – 24
family the
b
40 C
a
LM615AIN
Industrial
LM615IN
LM615IM
s
Features
COMPARATORS
Y
Y
Y
Y
Y
REFERENCE
Y
Y
Y
Y
Applications
Y
Y
Y
Y
Y
T
J s
Low operating current
Wide supply voltage range
Open-collector outputs
Input common-mode range
Wide differential input voltage
Adjustable output voltage
Tight initial tolerance available
Wide operating current range
Tolerant of load capacitance
Adjustable threshold detector
Time-delay generator
Voltage window comparator
Power supply monitor
RGB level detector
a
85 C
Surface Mount
16-Pin Narrow
Ceramic DIP
Molded DIP
Molded DIP
Package
N Package
16-Pin
16-Pin
16-Pin
Top View
V
Package Number
RRD-B30M115 Printed in U S A
b
17 A to 20 mA
December 1994
to (V
g
1 24V to 6 3V
M16A
N16A
N16A
J16A
NSC
0 6% (25 C)
TL H 11057 – 1
a
4V to 36V
b
600 A
g
1 8V)
36V

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LM615 Summary of contents

Page 1

... low dynamic imped- ance broad capacitive load range and cathode terminal voltage ranging from a diode-drop below member of National’s Super-Block LM615 is a space-saving monolithic alternative to a multi- chip solution offering a high level of integration without sac- rificing performance Connection Diagram ...

Page 2

... OUT (Note 1) Maximum Junction Temperature Thermal Resistance Junction-to-Ambient (Note 5) N Package Soldering Information N Package Soldering (10 seconds) 36V (Max) ESD Tolerance (Note (Min) b Operating Temperature Range LM615AI LM615I 36V g LM615A LM615M (Note 4) T 150 ...

Page 3

... Note 12 Low contact resistance is required for accurate measurement Note 13 A military RETS electrical test specification is available on request The LM615AMJ 883 may also be procured as a Standard Military Drawing 0V V ...

Page 4

Simplified Schematic Diagrams Reference Comparator Bias 11057 – 11057 – 3 ...

Page 5

Typical Performance Characteristics (Reference FEEDBACK pin shorted Reference Voltage vs Temperature Reference Voltage vs Current and Temperature Reference Voltage vs Reference Current FEEDBACK Current vs FEEDBACK-to-V b Voltage 0V unless otherwise noted ...

Page 6

Typical Performance Characteristics (Reference FEEDBACK pin shorted Reference Power-Up Time Reference Step Response for 100 Current Step Typical Performance Characteristics (Comparators unless otherwise ...

Page 7

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

Page 8

Application Information VOLTAGE REFERENCE Reference Biasing The voltage reference shunt regulator topology that models as a simple zener diode With current I the ‘‘forward’’ direction there is the familiar diode transfer function I flowing in the reverse ...

Page 9

Application Information (Continued) Understanding that V is fixed and that voltage sources re- r sistors and capacitors may be tied to the FEEDBACK pin a range of V temperature coefficients may be synthesized r FIGURE 6 Output Voltage has Negative ...

Page 10

... COMPARATORS Any of the comparators or the reference may be biased in any way with no effect on the other sections of the LM615 except when a substrate diode conducts (see Electrical Characteristics Note 3) For example one or both inputs of one comparator may be outside the input voltage range lim- ...

Page 11

Typical Applications Tracking Comparator R1–C1 removes the low-frequency signal component so that through R2–C2 the higher- frequency component is detected Power Supply Monitor V and V are optional digital OUT1 OUT2 outputs and are LOW when the corresponding LED is ...

Page 12

12 ...

Page 13

... Physical Dimensions inches (millimeters) 16-Pin Narrow Surface Mount Package (M) Ceramic Dual-In-Line Package (J) Order Number LM615AMJ 883 NS Package Number J16A Order Number LM615IM NS Package Number M16A 13 ...

Page 14

... Physical Dimensions inches (millimeters) (Continued) 16-Pin Molded Dual-In-Line Package (N) Order Number LM615IN or LM615MN 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 SEMICONDUCTOR CORPORATION As used herein ...

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