Datasheet
MAX7409/MAX7410/MAX7413/MAX7414
5th-Order, Lowpass,
Switched-Capacitor Filters
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= +5V for MAX7409/MAX7410, V
DD
= +3V for MAX7413/MAX7414, f
CLK
= 100kHz, SHDN = V
DD
, COM = OS = V
DD
/ 2, T
A
= +25°C,
unless otherwise noted.)
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
0 1.0 2.0 3.0 4.0 5.00.5 1.5 2.5 3.5 4.5
MAX7409
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. INPUT SIGNAL AMPLITUDE
MAX7409 toc08
AMPLITUDE (Vp-p)
THD + NOISE (dB)
A
B
SEE TABLE A
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
0 1.0 2.0 3.0 4.0 5.00.5 1.5 2.5 3.5 4.5
MAX7410
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. INPUT SIGNAL AMPLITUDE
MAX7409 toc09
AMPLITUDE (Vp-p)
THD + NOISE (dB)
A
B
SEE TABLE A
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
0 0.5 1.0 1.5 2.0 2.5 3.0
MAX7413
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. INPUT SIGNAL AMPLITUDE
MAX7409 toc10
AMPLITUDE (Vp-p)
THD + NOISE (dB)
A
B
SEE TABLE A
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
0 0.5 1.0 1.5 2.0 2.5 3.0
MAX7414
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. INPUT SIGNAL AMPLITUDE
MAX7409 toc11
AMPLITUDE (Vp-p)
THD + NOISE (dB)
A
B
SEE TABLE A
0
4
2
8
6
10
12
0 150 20050 100 250 300 350
INTERNAL OSCILLATOR PERIOD
vs. LARGE CAPACITANCE
MAX7409 toc14
CAPACITANCE (nF)
OSCILLATOR PERIOD (ms)
V
DD
= +5V
V
DD
= +3V
1.11
1.13
1.12
1.15
1.14
1.18
1.17
1.16
1.19
-40 0-20 20 40 60 80 100
SUPPLY CURRENT vs. TEMPERATURE
MAX7409 toc12
TEMPERATURE (°C)
SUPPLY CURENT (mA)
V
DD
= +5V
V
DD
= +3V
0
40
20
80
60
100
120
0 1500 2000500 1000 2500 3000 3500
INTERNAL OSCILLATOR PERIOD
vs. SMALL CAPACITANCE
MAX7409 toc13
CAPACITANCE (pF)
OSCILLATOR PERIOD (µs)
V
DD
= +5V
V
DD
= +3V
29.4
29.5
29.6
29.7
29.8
29.9
30.0
30.1
30.2
2.5 3.53.0 4.0 4.5 5.0 5.5
INTERNAL OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
MAX7409 toc15
SUPPLY VOLTAGE (V)
OSCILLATOR FREQUENCY (kHz)
C
OSC
= 1000pF
29.0
29.5
30.5
30.0
31.0
31.5
-40 0-20 20 40 60 80 100
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
MAX7409 toc16
TEMPERATURE (°C)
OSCILLATOR FREQUENCY FREQUENCY (kHz)
V
DD
= +5V
V
DD
= +3V
C
OSC
= 1000pF