MAX7408 Maxim, MAX7408 Datasheet - Page 7

• Manufacturer Part Number: MAX7408
• Description: 5th-Order / Lowpass / Elliptic / Switched-Capacitor Filters
• Manufacturer: Maxim

(V
T
A
DD
= +25°C; unless otherwise noted.)
28.0
27.5
27.0
26.5
26.0
25.5
120
100
80
60
40
20
= +5V for MAX7408/MAX7411, V
0
-50
0
INTERNAL OSCILLATOR FREQUENCY
C
vs. SMALL CAPACITANCE (in pF)
OSC
-30
INTERNAL OSCILLATOR PERIOD
500 1000
= 1000pF
-10
-10
-20
-30
-40
-50
-60
-70
-80
-90
vs. TEMPERATURE
0
TOTAL HARMONIC DISTORTION PLUS NOISE
TEMPERATURE (°C)
CAPACITANCE (pF)
0
10
1500 2000
_______________________________________________________________________________________
vs. INPUT SIGNAL AMPLITUDE
30
0.5
V
DD
50
= +5V
1.0
AMPLITUDE (Vp-p)
2500 3000 3500
V
V
70
MAX7412
DD
V
DD
DD
= +5V
= +3V
1.5
= +3V
90
DD
A
110
2.0
SEE TABLE A
= +3V for MAX7412/MAX7415; f
2.5
Typical Operating Characteristics (continued)
B
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
12
10
8
6
4
2
0
0
3.0
-40
0
Elliptic, Switched-Capacitor
vs. LARGE CAPACITANCE (in nF)
INTERNAL OSCILLATOR PERIOD
-20
50
DC OFFSET VOLTAGE
100
vs. TEMPERATURE
0
TEMPERATURE (°C)
CAPACITANCE (nF)
150
20
V
200
40
DD
V
= +5V
DD
250
= +3V
60
CLK
V
V
DD
5th-Order, Lowpass,
DD
= +3V
300
= +5V
80
= 100kHz; SHDN = V
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
TOTAL HARMONIC DISTORTION PLUS NOISE
350
100
0
vs. INPUT SIGNAL AMPLITUDE
0.5
A
B
27.4
27.3
27.2
27.1
27.0
26.9
26.8
26.7
26.6
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
0
1.0
AMPLITUDE (Vp-p)
2.5
2.0
MAX7415
INTERNAL OSCILLATOR FREQUENCY
C
1.5
OSC
2.5
3.0
DD
= 1000pF
DC OFFSET VOLTAGE
vs. SUPPLY VOLTAGE
vs. SUPPLY VOLTAGE
; V
3.0
2.0
SUPPLY VOLTAGE (V)
3.5
SUPPLY VOLTAGE
COM
SEE TABLE A
3.5
2.5
4.0
A
= V
B
4.0
3.0
OS
4.5
4.5
= V
5.0
5.0
DD
/ 2;
5.5
5.5
7