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MC7400 View Datasheet(PDF) - ON Semiconductor

Part Name
Description
Manufacturer
MC7400
ON-Semiconductor
ON Semiconductor ON-Semiconductor
MC7400 Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
LM339, LM239, LM2901, LM2901V, NCV2901, MC3302
APPLICATIONS INFORMATION
These quad comparators feature high gain, wide
bandwidth characteristics. This gives the device oscillation
tendencies if the outputs are capacitively coupled to the
inputs via stray capacitance. This oscillation manifests itself
during output transitions (VOL to VOH). To alleviate this
situation input resistors < 10 kW should be used. The
addition of positive feedback (< 10 mV) is also
recommended. It is good design practice to ground all
unused input pins.
Differential input voltages may be larger than supply
voltages without damaging the comparator’s inputs.
Voltages more negative than −300 mV should not be used.
+15 V
R1
8.2 k
Vin
D1
R4
R5
220 k 220 k
*
6.8 k
R2
)
10 k
VO
15 k
10 M
R3
D1 prevents input from going negative by more than 0.6 V.
R1 + R2 = R3
R3 R5 for small error in zero crossing
10
Figure 9. Zero Crossing Detector
(Single Supply)
Vin(min) 0.4 V peak for 1% phase distortion (Dq).
Vin
Vin(min)
VCC
q
*
10 k
Vin
+
VO VCC
VO
q
VEE
VEE
Dq
Figure 10. Zero Crossing Detector
(Split Supplies)
ORDERING INFORMATION
Device
Package
Shipping
LM239D
LM239DG
SOIC−14
SOIC−14
(Pb−Free)
55 Units/Tube
LM239DR2
SOIC−14
LM239DR2G
LM239DTBR2
SOIC−14
(Pb−Free)
TSSOP−14*
2500 / Tape & Reel
LM239DTBR2G
TSSOP−14*
LM239N
LM239NG
PDIP−14
PDIP−14
(Pb−Free)
25 Units/Rail
LM339D
LM339DG
SOIC−14
SOIC−14
(Pb−Free)
55 Units/Tube
LM339DR2
SOIC−14
LM339DR2G
LM339DTBR2
SOIC−14
(Pb−Free)
TSSOP−14*
2500 / Tape & Reel
LM339DTBR2G
TSSOP−14*
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb−Free.
http://onsemi.com
6
 

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