Datasheet

MAX7400/MAX7403/MAX7404/MAX7407
8th-Order, Lowpass, Elliptic,
Switched-Capacitor Filters
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= +5V for MAX7400/MAX7403, V
DD
= +3V for MAX7404/MAX7407; V
COM
= V
OS
= V
DD
/ 2; SHDN = V
DD
; f
CLK
= 100kHz;
T
A
= +25°C; unless otherwise noted.)
1.5
1.8
1.7
1.6
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.5 3.53.0 4.0 4.5 5.0 5.5
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX7400 toc07
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
NO LOAD
MAX7404
MAX7407
MAX7400
MAX7403
1.97
1.99
1.98
2.01
2.00
2.02
2.03
-40 20 40-20 0 60 80 100
SUPPLY CURRENT
vs. TEMPERATURE
MAX7400 toc08
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
NO LOAD
MAX7400
MAX7403
MAX7404
MAX7407
-20
-15
-10
-5
0
5
10
15
20
2.5 3.53.0 4.0 4.5 5.0 5.5
OFFSET VOLTAGE
vs. SUPPLY VOLTAGE
MAX7400 toc09
SUPPLY VOLTAGE (V)
OFFSET VOLTAGE (mV)
V
IN
= V
COM
= V
DD
/2
MAX7404
MAX7407
MAX7400
MAX7403
-0.5
0
0.5
1.5
1.0
2.0
-40 -20 0 20 40 60 80 100
OFFSET VOLTAGE vs. TEMPERATURE
MAX7400/03-10
TEMPERATURE (°C)
OFFSET VOLTAGE (mV)
V
IN
= V
COM
= V
DD
/2
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
012345
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE (MAX7400)
MAX7400/03 11
AMPLITUDE (Vp-p)
THD + NOISE (dB)
NO LOAD
(SEE TABLE A)
B
C
D
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
012345
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE AND RESISTIVE LOAD (MAX7400)
MAX7400/03-12
AMPLITUDE (Vp-p)
THD + NOISE (dB)
f
IN
= 200Hz
f
C
= 1kHz
MEASUREMENT BW = 22kHz
R
L
= 500Ω
R
L
= 1kΩ
R
L
= 10kΩ
-120
-80
-100
-60
0
20
-20
-40
40
012345
MAX7403/MAX7407 (r = 1.2)
FREQUENCY RESPONSE
MAX7400/03 04
INPUT FREQUENCY (kHz)
GAIN (dB)
f
C
= 1kHz
-0.32
-0.16
-0.24
-0.08
0.16
0.24
0.08
0
0.32
0 202 404 606 808 1010
MAX7403/MAX7407 (r = 1.2)
PASSBAND FREQUENCY RESPONSE
MAX7400/03 05
INPUT FREQUENCY (Hz)
GAIN (dB)
f
C
= 1kHz
-640
-480
-560
-400
-160
-80
-240
-320
0
0 240 480 720 960 1200
MAX7403/MAX7407 (r = 1.2)
PHASE RESPONSE
MAX7400/03 06
INPUT FREQUENCY (Hz)
PHASE SHIFT (DEGREES)
f
C
= 1kHz