MAX7400 データシートの表示（PDF） - Maxim Integrated
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MAX7400 Datasheet PDF : 12 Pages
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8th-Order, Lowpass, Elliptic,
Switched-Capacitor Filters
Typical Operating Characteristics (continued)
(VDD = +5V for MAX7400/MAX7403, VDD = +3V for MAX7404/MAX7407; VCOM = VOS = VDD / 2; SHDN = VDD; fCLK = 100kHz;
TA = +25°C; unless otherwise noted.)
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE (MAX7403)
0
NO LOAD
-10
(SEE TABLE A)
-20
-30
-40
-50
-60
B
-70
DC
-80
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE AND RESISTIVE LOAD (MAX7403)
TABLE A. THD PLUS NOISE vs. INPUT SIGNAL
0
AMPLITUDE TEST CONDITIONS
-10
fIN = 200Hz
fC = 1kHz
-20 MEASUREMENT BW = 22kHz
TRACE
fIN
(Hz)
fC fCLK MEASUREMENT
(kHz) (kHz) BANDWIDTH (kHz)
-30
-40
RL = 500Ω
A 2800 14 1400
80
-50
RL = 1kΩ
B 2000 10 1000
80
-60
-70
RL = 10kΩ
C 1000 5 500
80
-80
D 200 1 100
22
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE (MAX7404)
0
-10
NO LOAD
(SEE TABLE A)
-20
-30
-40
-50
A
-60
D CB
-70
-80
-90
0
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE AND RESISTIVE LOAD (MAX7404)
0
fIN = 200Hz
-10 fC = 1kHz
-20
MEASUREMENT BW = 22kHz
-30
-40
-50
RL = 500Ω
-60
RL = 10kΩ
-70
RL = 1kΩ
-80
-90
0
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE (MAX7407)
0
-10
NO LOAD
(SEE TABLE A)
-20
-30
-40
-50
A
-60
CB
-70
-80
-90
0
D
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE AND RESISTIVE LOAD (MAX7407)
0
fIN = 200Hz
-10 fC = 1kHz
MEASUREMENT BW = 22kHz
-20
-30
-40
-50
RL = 500Ω
-60
RL = 1kΩ
-70
RL = 10kΩ
-80
-90
0
0.5 1.0 1.5 2.0 2.5 3.0
AMPLITUDE (Vp-p)
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