LTC1067-50CGN View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1067-50CGN' PDF : 20 Pages View PDF
APPLICATIONS INFORMATION
LTC1067/LTC1067-50
Figure 16. Silkscreen for the LTC1067/LTC1067-50 Demo Board
TYPICAL APPLICATIONS
5th Order Lowpass with Input RC (Fixed Frequency)
5V
0.1µF
VIN
RIN1
16.9k
CIN1
1500pF
5%
RIN2
22.6k
R41, 20k
R31, 47.5k
R21, 22.6k
1 V+
16
CLK
2 NC
15
AGND
3 V+
V– 14
4 SA
13
SB
5
LTC1067
LPA
LPB
12
6 BPA
11
BPB
7
10
HPA/NA HPB/NB
8 INV A
9
INV B
RH1, 118k
RL1, 24.3k
fCLK
–5V
0.1µF
R42, 47.5k
R32, 29.4k
R22, 45.3k
VS
fCUTOFF
CIN1
fCLK
±5V
20k 15k
750pF 1000pF
2MHz 1.5MHz
5V
10k
1500pF
1MHz
3V
5k
3000pF
500kHz
1067 TA05a
VOUT
Frequency Response (fCUTOFF = 10kHz)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
1
10
100
FREQUENCY (kHz)
1067 TA05b
Passband Gain Variation Due to CIN
1.00
0.75
0.50
0.25
CIN1 = 1500pF – 5%
0
CIN1 = 1500pF
–0.25
–0.50
CIN1 = 1500pF + 5%
–0.75
–1.00
–1.25
–1.50
1
2
4 6 8 10
20
FREQUENCY (kHz)
1067 TA05c
17
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