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LR393 Fiches technique(PDF) 3 Page - Leshan Radio Company

No de pièce LR393
Description  Dual Differential Comparators 5.0nA; Low input offset voltage: 5.0mV
PDF  6 Pages
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Fabricant  LRC [Leshan Radio Company]
Site Internet  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR393 Fiches technique(HTML) 3 Page - Leshan Radio Company

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LESHAN RADIO COMPANY, LTD.
3/6
Figure 1. Zero Crossing Detector
(Single Supply)
Figure 2. Zero Crossing Detector
(Split Supply)
Figure 3. Free−Running Square−Wave Oscillator
Figure 4. Time Delay Generator
10
D1 prevents input from going negative by more than 0.6 V.
R1 + R2 = R3
R3
≤
R5
for small error in zero crossing.
Vin
10 k
D1
R1
8.2 k
6.8 k
R2
15 k
R3
+15 V
10 M
R5
220 k
R4
220 k
LR393
Vin(min) [ 0.4 V peak for 1% phase distortion (DQ).
*
Q
+VCC
10 k
Vin
−VEE
Vin
Vin(min)
VCC
VO
− VEE
DQ
Q
LR393
−
+
LR393
51 k
51 k
51 k
RL
10 k
VCC
VCC
VCC
VO
VO
t
0
1.0 M
W
0.001
mF
−
+
LR393
VCC
VCC
VO
Vin
VO
+ Vref
Vref
Vref
0
0
0
VC
tO
t
‘‘ON’’ for t
­ tO + Dt
where:
Dt = RC n (
Vref
VCC
)
R
RL
VC
C
R1
t
−
+
LR393
)
*
)
APPLICATION CIRCUIT
LR393



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