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MAX7490 Datasheet(数据表) 6 Page - Maxim Integrated Products

部件型号  MAX7490
说明  Dual Universal Switched-Capacitor Filters
下载  18 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

MAX7490 Datasheet(HTML) 6 Page - Maxim Integrated Products

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Dual Universal Switched-Capacitor Filters
6
_______________________________________________________________________________________
-0.6
-0.4
-0.5
-0.3
-0.2
-0.1
0
0.1
0.2
040
20
60
80
100
fCLK/fO DEVIATION vs. Q
Q
VDD = 5V
VDD = 3V
-0.7
-0.3
-0.4
-0.6
-0.2
-0.5
-0.1
0
0.1
0.3
0.2
0.4
0.5
0.6
0.7
-40
10
-15
35
60
85
fCLK/fO DEVIATION vs. TEMPERATURE
TEMPERATURE (°C)
1
-6
100
1000
10,000
Q DEVIATION vs. fCLK
-5
fCLK (kHz)
-4
-1
-2
-3
0
VDD = 3V
VDD = 5V
-2.0
-1.0
-1.5
-0.5
0
0.5
1.0
1.5
2.0
-40
10
-15
35
60
85
Q DEVIATION vs. TEMPERATURE
TEMPERATURE (°C)
0
150
100
50
200
250
300
350
400
450
500
040
20
60
80
100
NOISE vs. Q
Q
3.0
3.2
3.1
3.4
3.3
3.6
3.5
3.7
-40
10
-15
356085
SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE (°C)
VDD = 5V
VDD = 3V
3.0
3.3
3.2
3.1
3.4
3.5
3.6
3.7
3.8
3.9
4.0
3.0
4.0
3.5
4.5
5.0
5.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
VDD (V)
fCLK = 3MHz
fCLK = 625kHz
fCLK = 2kHz
3.32
3.34
3.33
3.37
3.36
3.35
3.40
3.39
3.38
3.41
3.0
4.0
3.5
4.5
5.0
5.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
VDD (V)
-40°C
+25°C
+85°C
-20
-120
1k
10k
MAX7491
THD + NOISE vs. FREQUENCY
INPUT FREQUENCY (Hz)
-30
-40
-50
-60
-70
-80
-90
-100
-110
A
B
A = MODE 1
B = MODE 3
Typical Operating Characteristics (continued)
(VDD = +5V for MAX7490, VDD = +3V for MAX7491, fCLK = 625kHz, SHDN = EXTCLK = VDD, COM = VDD/2, Mode 1, R3 = R1 = 50k
Ω,
R2 = 10k
Ω, Q = 5, TA = +25°C, unless otherwise noted.)




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