LM360 반도체 회로 부품 판매점
High Speed Differential Comparator
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 National Semiconductor |
May 1999
LM160/LM360
High Speed Differential Comparator
General Description
The LM160/LM360 is a very high speed differential input,
complementary TTL output voltage comparator with im-
proved characteristics over the µA760/µA760C, for which it
is a pin-for-pin replacement. The device has been optimized
for greater speed, input impedance and fan-out, and lower
input offset voltage. Typically delay varies only 3 ns for over-
drive variations of 5 mV to 400 mV.
Complementary outputs having minimum skew are provided.
Applications involve high speed analog to digital convertors
and zero-crossing detectors in disk file systems.
Features
n Guaranteed high speed: 20 ns max
n Tight delay matching on both outputs
n Complementary TTL outputs
n High input impedance
n Low speed variation with overdrive variation
n Fan-out of 4
n Low input offset voltage
n Series 74 TTL compatible
Connection Diagrams
Metal Can Package
Dual-In-Line Package
DS005707-4
Order Number LM160H/883 (Note 1) or LM360H
See NS Package Number H08C
Note 1: Also available in SMD# 5962-8767401
DS005707-5
Order Number LM360M or LM360N
See NS Package Number M08A or N08E
© 1999 National Semiconductor Corporation DS005707
www.national.com
Absolute Maximum Ratings (Notes 6, 8)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Positive Supply Voltage
Negative Supply Voltage
Peak Output Current
Differential Input Voltage
Input Voltage
ESD Tolerance (Note 9)
Operating Temperature Range
LM160
LM360
+8V
−8V
20 mA
±5V
V+ ≥ VIN ≥ V−
1600V
−55˚C to +125˚C
0˚C to +70˚C
Storage Temperature Range
−65˚C to +150˚C
Lead Temperature
(Soldering, 10 sec.)
260˚C
Soldering Information
Dual-In-Line Package
Soldering (10 seconds)
260˚C
Small Outline Package
Vapor Phase (60 seconds)
215˚C
Infrared (15 seconds)
220˚C
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
Electrical Characteristics
(TMIN ≤ TA ≤ TMAX)
Parameter
Conditions
Min Typ Max
Operating Conditions
Supply Voltage VCC+
Supply Voltage VCC−
Input Offset Voltage
Input Offset Current
RS ≤ 200Ω
4.5 5 6.5
−4.5 −5 −6.5
25
0.5 3
Input Bias Current
5 20
Output Resistance (Either Output)
Response Time
Response Time Difference between Outputs
VOUT = VOH
TA = 25˚C, VS = ±5V (Notes 2, 7)
TA = 25˚C, VS = ±5V (Notes 3, 7)
TA = 25˚C, VS = ±5V (Notes 4, 7)
100
13 25
12 20
14
(tpd of +VIN1) − (tpd of −VIN2)
(tpd of +VIN2) − (tpd of −VIN1)
(tpd of +VIN1) − (tpd of +VIN2)
(tpd of −VIN1) − (tpd of −VIN2)
Input Resistance
TA = 25˚C (Notes 2, 7)
TA = 25˚C (Notes 2, 7)
TA = 25˚C (Notes 2, 7)
TA = 25˚C (Notes 2, 7)
f = 1 MHz
2
2
2
2
17
Input Capacitance
f = 1 MHz
3
Average Temperature Coefficient of
Input Offset Voltage
RS = 50Ω
8
Average Temperature Coefficient of
7
Input Offset Current
Common Mode Input Voltage Range
Differential Input Voltage Range
VS = ±6.5V
±4 ±4.5
±5
Output High Voltage (Either Output)
Output Low Voltage (Either Output)
Positive Supply Current
Negative Supply Current
IOUT = −320 µA, VS = ±4.5V
ISINK = 6.4 mA
VS = ±6.5V
VS = ±6.5V
2.4 3
0.25
0.4
18 32
−9 −16
Note 2: Response time measured from the 50% point of a 30 mVp-p 10 MHz sinusoidal input to the 50% point of the output.
Note 3: Response time measured from the 50% point of a 2 Vp-p 10 MHz sinusoidal input to the 50% point of the output.
Note 4: Response time measured from the start of a 100 mV input step with 5 mV overdrive to the time when the output crosses the logic threshold.
Note 5: Typical thermal impedances are as follows:
Units
V
V
mV
µA
µA
Ω
ns
ns
ns
ns
ns
ns
ns
kΩ
pF
µV/˚C
nA/˚C
V
V
V
V
mA
mA
Cavity DIP (J):
Molded DIP (N):
θjA 135˚C/W
θjA 130˚C/W
Header (H)
Note 6: The device may be damaged if used beyond the maximum ratings.
Note 7: Measurements are made in AC Test Circuit, Fanout = 1
Note 8: Refer to RETS 160X for LM160H, LM160J-14 and LM160J military specifications.
θjA
θjC
165˚C/W
67˚C/W
25˚C/W
(Still Air)
(400 LF/min Air Flow)
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