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LMV931 View Datasheet(PDF) - ON Semiconductor

Part NameDescriptionManufacturer
LMV931 Single and Dual Low Voltage, Rail-to-Rail Input and Output, Operational Amplifiers ON-Semiconductor
ON Semiconductor ON-Semiconductor
LMV931 Datasheet PDF : 20 Pages
First Prev 11 12 13 14 15 16 17 18 19 20
LMV931, LMV932
APPLICATION INFORMATION
VCC
MC1403
R1
VCC
R2
LMV931
VO
+
2.5 V
VO
+
2.5
V(1
)
R1)
R2
Figure 27. Voltage Reference
50 k
Vref
Vref
+
1
2
VCC
5.0 k
10 k
VCC
LMV931
+
R
RC
C
VO
fO
+
1
2pRC
For: fo = 1.0 kHz
R = 16 kW
C = 0.01 mF
Figure 28. Wien Bridge Oscillator
R1
Vref
Vin
R2
Hysteresis
VOH
+
LMV931
VO
VO
VOL
VinL VinH
VinL
+
R1
R1 ) R2
VinH
+
R1
R1
)
R2
H + R1
R1 ) R2
Vref
(VOL * Vref) ) Vref
(VOH * Vref) ) Vref
(VOH * VOL)
Figure 29. Comparator with Hysteresis
VCC
R1
Vin
C
C
R3
LMV931
R2
+
Vref
CO
VO
CO = 10 C
Given: fo = center frequency
A(fo) = gain at center frequency
Choose
value
fo,
C
Q
Then : R3 +
pfO C
R1 + R3
2 A(fO)
R1 R3
R2 +
4Q2 R1 * R3
For less than 10% error from operational amplifier,
((QO fO)/BW) < 0.1 where fo and BW are expressed in Hz.
If source impedance varies, filter may be preceded with
voltage follower buffer to stabilize filter parameters.
Figure 30. Multiple Feedback Bandpass Filter
ORDERING INFORMATION
Order Number
Number of
Channels
Number of Pins
Package Type
Shipping
LMV931SQ3T2G
Single
5
SC705
(PbFree)
3000 / Tape & Reel
LMV931SN3T1G
Single
5
TSOP5
(PbFree)
3000 / Tape & Reel
LMV932DMR2G*
Dual
8
Micro8
(PbFree)
4000 / Tape & Reel
†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.
*Consult Sales.
http://onsemi.com
17
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