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LT1466L/LT1467L
1466l7lf LT/TP 0697 5K • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1997
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
(408) 432-1900
FAX: (408) 434-0507
●
TELEX: 499-3977
●
www.linear-tech.com
TYPICAL APPLICATIONS N
U
4-Pole,1kHz, 3.3V Single Supply State Variable Filter Using the LT1467L
10,000pF
10,000pF
C2
10,000pF
C1
10,000pF
R1*
29.5k
R2*
8.6k
29.5k*
11.8k*
21.5k*
11.8k*
1µF
10k
10k
V
OUT
V
IN
3.3V
–
+
–
+
–
+
–
+
A1
1/4 LT1467L
A2
1/4 LT1467L
A3
1/4 LT1467L
A4
1/4 LT1467L
1466L/67L TA03
*1% RESISTORS
ω
0
2
=
1
(R1)(C1)(R2)(C2)
1
ω
0
Q(C1)
R1 =
Q
ω
0
(C2)
R2 =
Frequency Response of 4th Order Butterworth Filter
FREQUENCY (Hz)
100
–80
GAIN (dB)
–60
–40
–20
0
1k 10k
1466L/67L TA04
GAIN
PART NUMBER DESCRIPTION COMMENTS
LTC
®
1152 Rail-to-Rail Input and Output, Zero-Drift Op Amp High DC Accuracy, 10µV V
OS(MAX)
, 100nV/°C Drift, 0.7MHz GBW, 0.5V/µs
Slew Rate, Maximum Supply Current 3mA
LT1366/LT1367 Dual/Quad Precision, Rail-to-Rail Input and Output 475µV V
OS(MAX)
, 400kHz GBW, 0.13V/µs Slew Rate,
Op Amps Maximum Supply Current 520µA per Op Amp
LT1498 /LT1499 Dual/Quad, 10MHz Rail-to-Rail Input and High Speed, 5V/µs Slew Rate, 475µV V
OS(MAX)
from V
+
to V
–
,
Output Op Amps Max Supply Current 2.2mA per Op Amp
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