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MAX7490EEE Datasheet(PDF) 7 Page - Maxim Integrated Products

Part # MAX7490EEE
Description  Dual Universal Switched-Capacitor Filters
PDF  18 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX7490EEE Datasheet(HTML) 7 Page - Maxim Integrated Products

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Dual Universal Switched-Capacitor Filters
_______________________________________________________________________________________
7
-20
-120
1k
10k
MAX7490
THD + NOISE vs. FREQUENCY
INPUT FREQUENCY (Hz)
-30
-40
-50
-60
-70
-80
-90
-100
-110
B
A
A = MODE 1
B = MODE 3
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
1.0
0.5
1.5
2.0
2.5
3.0
MAX7491
THD + NOISE vs. INPUT VOLTAGE
INPUT VOLTAGE (Vp-p)
B
A
A = MODE 1
B = MODE 3
-90
-80
-70
-60
-50
-40
-30
-20
-10
012345
MAX7490
THD + NOISE vs. INPUT VOLTAGE
INPUT VOLTAGE (Vp-p)
B
A
A = MODE 1
B = MODE 3
2.0
3.0
2.5
3.5
4.0
4.5
5.0
08
412
16
20
OUTPUT VOLTAGE SWING vs. RLOAD
RLOAD (k
Ω) TO COM
VDD = 5V
VDD = 3V
0
500
1500
1000
2000
2500
0400
200
600
800
1000
INTERNAL OSCILLATOR PERIOD
vs. SMALL CAPACITANCE
CAPACITANCE (pF)
VDD = 3V
VDD = 5V
0
20
40
60
80
100
120
140
160
13
2
4567
INTERNAL OSCILLATOR PERIOD
vs. LARGE CAPACITANCE
CAPACITANCE (nF)
VDD = 5V
VDD = 3V
126
128
127
130
129
132
131
133
3.0
4.0
3.5
4.5
5.0
5.5
INTERNAL OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
VDD (V)
COSC = 1000pF
124
130
128
126
132
134
136
138
140
142
144
-40
10
-15
35
60
85
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
TEMPERATURE (
°C)
VDD = 3V
VDD = 5V
COSC = 1000pF
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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