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LT1568IGN Datasheet(PDF) 12 Page - Linear Technology

Part # LT1568IGN
Description  Very Low Noise, High Frequency Active RC, Filter Building Block
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1568IGN Datasheet(HTML) 12 Page - Linear Technology

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LT1568
12
1568f
Table 1. Resistor Values in Ohms, Dual 2nd Order
Butterworth, Gain = 1, R12 = R11, R22 = R21, R32 = R31
fCUTOFF (MHz)
R11 = R21 = R31
0.2
6340
Ω
0.5
2550
Ω
1
1270
Ω
2
634
Ω
3
422
Ω
4
324
Ω
5
255
Ω
6
210
Ω
7
182
Ω
8
162
Ω
9
143
Ω
10
127
Ω
FREQUENCY (MHz)
0.1
–50
–40
–30
–20
–10
110
20
1568 TA07
–60
–70
–80
–90
0
10
Amplitude Response
2nd Order Butterworth, fCUTOFF = 1MHz
Transient Response
2nd Order Butterworth, fCUTOFF = 1MHz
INPUT
500mV/DIV
OUTPUT
200mV/DIV
1
µs/DIV
1568 TA08
Dual 2nd Order Lowpass Filter,
Dual Supply Operation
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V+
INVA
SA
OUTA
OUTA
GNDA
NC
V–
V+
INVB
SB
OUTB
OUTB
GNDB
EN
V–
0.1
µF
BAT54S
VIN1
VOUTA
VOUTA
VIN2
VOUTB
VOUTB
R11
R31
R22
R32
R12
R21
0.1
µF
–5V
1568 TA03
5V
LT1568
Dual 2nd Order Lowpass Filter,
Single Supply Operation
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V+
INVA
SA
OUTA
OUTA
GNDA
NC
V–
V+
INVB
SB
OUTB
OUTB
GNDB
EN
V–
0.1
µF
VIN1
VOUTA
VOUTA
VIN2
VOUTB
VOUTB
R11
R31
R22
R32
R12
R21
0.1
µF
1568 TA04
2.7V
≤ V+ ≤ 10V
LT1568
R
ff
C
CUTOFF
11 = R21 = R31 = R = 128
•
10MHz
fC
Ω
=
DUAL 2nd ORDER LOWPASS FILTER DESIG S



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