LMV822DMR2G ONSEMI [ON Semiconductor], LMV822DMR2G Datasheet - Page 10

• Manufacturer Part Number: LMV822DMR2G
• Description: Single, Dual, Quad Low Voltage, Rail-to-Rail Operational Amplifiers
• Manufacturer: ONSEMI [ON Semiconductor]

V
V
ref
in
MC1403
V
CC
R1
Figure 16. Comparator with Hysteresis
Figure 14. Voltage Reference
LMV821
+
−
R2
R2
2.5 V
V
V
in
in
H +
H +
L +
−
+
LMV821
V
R1
R1 ) R2
O
R1 ) R2
R1 ) R2
V
V
+ 2.5 V(1 )
O
R1
CC
R1
R1
V
V
V
OH
OL
O
(V
(V
(V
APPLICATIONS INFORMATION
OH
OH
OL
R1
R2
V
Hysteresis
V
* V
* V
* V
O
)
inL
V
OL
ref
ref)
ref)
http://onsemi.com
V
)
inH
) V
) V
ref
ref
10
V
V
ref
in
+
Figure 17. Multiple Feedback Bandpass Filter
Given: f
Choose value f
For less than 10% error from operational amplifier,
((Q
If source impedance varies, filter may be preceded with
voltage follower buffer to stabilize filter parameters.
Then :
V
1
2
O
ref
V
R1
CC
f
O
)/BW) < 0.1 where f
A(f
o
R3 +
R1 +
R2 +
Figure 15. Wien Bridge Oscillator
= center frequency
o
) = gain at center frequency
R2
10 k
C
o
, C
pf
2 A(f
4Q
R
C
Q
O
R3
2
R1 R3
C
O
R1 * R3
5.0 k
)
R3
V
ref
−
LMV821
+
C
o
50 k
−
LMV821
+
and BW are expressed in Hz.
R
V
V
CC
CC
C
f
O
For: f
+
V
O
R = 16 kW
C = 0.01 mF
CO = 10 C
C
o
2pRC
O
= 1.0 kHz
1
V
O