Typical operating characteristics (continued), Table a – Rainbow Electronics MAX7425 User Manual
Page 8
____________________________Typical Operating Characteristics (continued)
(V
DD
= +5V for MAX7418–MAX7421, V
DD
= +3V for MAX7422–MAX7425, f
CLK
= 2.2MHz, SHDN = V
DD
, V
COM
= V
OS
= V
DD
/ 2,
T
A
= +25°C, unless otherwise noted.
MAX7418–MAX7425
5th-Order, Lowpass,
Switched-Capacitor Filters
8
_______________________________________________________________________________________
0
2
1
4
3
5
6
10
100
1000
INTERNAL OSCILLATOR FREQUENCY
vs. LARGE CAPACITANCE (nF)
MAX7418 toc22
CAPACITANCE (nF)
OSCILLATOR FREQUENCY (Hz)
ELLIPTIC
BESSEL/BUTTERWORTH
2.3
2.5
2.9
2.7
3.1
3.3
2.5
3.5
3.0
4.0
4.5
5.0
5.5
ELLIPTIC SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX7418 toc25
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
µ
A)
84.0
85.0
84.5
86.0
85.5
86.5
87.0
2.5
3.5
4.0
3.0
4.5
5.0
5.5
ELLIPTIC INTERNAL OSCILLATOR
FREQUENCY vs. SUPPLY VOLTAGE
MAX7418 toc23
SUPPLY VOLTAGE (V)
OSCILLATOR FREQUENCY (kHz)
C
OSC
= 1000PF
84.0
85.0
84.5
86.0
85.5
86.5
87.0
-40
10
-15
35
60
85
ELLIPTIC INTERNAL OSCILLATOR
FREQUENCY vs. TEMPERATURE
MAX7418 toc24
TEMPERATURE (
°C)
OSCILLATOR FREQUENCY (kHz)
V
DD
= 3V
V
DD
= 5V
C
OSC
= 1000pF
2.5
2.6
2.8
2.7
2.9
3.0
-40
10
-15
35
60
85
ELLIPTIC SUPPLY CURRENT
vs. TEMPERATURE
MAX7418 toc26
TEMPERATURE (
°C)
SUPPLY CURRENT (mA)
V
DD
= 5V
V
DD
= 3V
1
f
IN
(kHz)
2
2
1
2
10
f
C
(kHz)
E
30
22
10
22
1000
LABEL
A
B
f
CLK
(kHz)
3000
2200
1000
C
D
2200
22
BW
(kHz)
80
80
22
80
Table A.