MAX7400 데이터 시트보기 (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.)
40
20
0
-20
-40
-60
-80
-100
-120
0
MAX7403/MAX7407 (r = 1.2)
FREQUENCY RESPONSE
fC = 1kHz
1
2
3
4
5
INPUT FREQUENCY (kHz)
MAX7403/MAX7407 (r = 1.2)
PASSBAND FREQUENCY RESPONSE
0.32
fC = 1kHz
0.24
0.16
0.08
0
-0.08
-0.16
-0.24
-0.32
0
202 404 606 808 1010
INPUT FREQUENCY (Hz)
0
-80
-160
-240
-320
-400
-480
-560
-640
0
MAX7403/MAX7407 (r = 1.2)
PHASE RESPONSE
fC = 1kHz
240 480 720 960 1200
INPUT FREQUENCY (Hz)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.5
NO LOAD
2.4
2.3
2.2
2.1 MAX7404
MAX7407
2.0
MAX7400
MAX7403
1.9
1.8
1.7
1.6
1.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
OFFSET VOLTAGE vs. TEMPERATURE
2.0
VIN = VCOM = VDD/2
1.5
1.0
0.5
0
-0.5
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
SUPPLY CURRENT
vs. TEMPERATURE
2.03
NO LOAD
2.02
2.01
MAX7400
MAX7403
2.00
1.99
MAX7404
1.98 MAX7407
1.97
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE (MAX7400)
0
-10
NO LOAD
(SEE TABLE A)
-20
-30
-40
-50
-60
B
C
-70
D
-80
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
OFFSET VOLTAGE
vs. SUPPLY VOLTAGE
20
VIN = VCOM = VDD/2
15
10
5 MAX7404
MAX7407
0
MAX7400
MAX7403
-5
-10
-15
-20
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE AND RESISTIVE LOAD (MAX7400)
0
fIN = 200Hz
-10 fC = 1kHz
-20 MEASUREMENT BW = 22kHz
-30
-40
RL = 500Ω
-50
-60
RL = 1kΩ
-70
RL = 10kΩ
-80
-90
0
1
2
3
4
5
AMPLITUDE (Vp-p)
6 _______________________________________________________________________________________
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