MAX7418 데이터 시트보기 (PDF) - Maxim Integrated
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MAX7418 Datasheet PDF : 14 Pages
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5th-Order, Lowpass,
Switched-Capacitor Filters
____________________________Typical Operating Characteristics (continued)
(VDD = +5V for MAX7418–MAX7421, VDD = +3V for MAX7422–MAX7425, fCLK = 2.2MHz, SHDN = VDD, VCOM = VOS = VDD / 2,
TA = +25°C, unless otherwise noted.
MAX7418
MAX7419
MAX7420
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
(ELLIPTIC, r = 1.6)
(BESSEL)
(BUTTERWORTH)
0
SEE TABLE A
-10
0
SEE TABLE A
-10
0
SEE TABLE A
-10
-20
-20
-20
-30
-30
-30
-40
-40
-40
-50
-50
-50
-60
-70
D
-80
E
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
MAX7421
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
(ELLIPTIC, r = 1.25)
0
SEE TABLE A
-10
-20
-30
-40
-50
-60
D
-70
-80
E
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
-60
D
-70
-80
E
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
MAX7422
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
(ELLIPTIC, r = 1.6)
0
SEE TABLE A
-10
-20
-30
-40
-50
-60
-70
A
B
-80
-90
0
C
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
-60
D
-70
-80
E
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
MAX7423
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
(BESSEL)
0
SEE TABLE A
-10
-20
-30
-40
-50
-60
A
-70
B
-80
-90
0
C
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
MAX7424
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
(BUTTERWORTH)
0
SEE TABLE A
-10
-20
-30
-40
MAX7425
THD + NOISE vs. INPUT SIGNAL AMPLITUDE
(ELLIPTIC, r = 1.25)
0
SEE TABLE A
-10
-20
-30
-40
INTERNAL OSCILLATOR FREQUENCY
vs. SMALL CAPACITANCE (pF)
7000
6000
5000
4000
BESSEL/BUTTERWORTH
-50
-60
-70
-80
-90
0
AB
C
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
-50
-60
-70
-80
-90
0
A
B
C
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
3000
ELLIPTIC
2000
1000
0
1
10
100
1000
CAPACITANCE ( pF)
10000
_______________________________________________________________________________________ 7
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