MAX7403 MAXIM [Maxim Integrated Products], MAX7403 Datasheet - Page 5

• Manufacturer Part Number: MAX7403
• Description: 8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters
• Manufacturer: MAXIM [Maxim Integrated Products]

ELLIPTIC (r = 1.2) FILTER CHARACTERISTICS—MAX7403/MAX7407
(V
V
(V
T
Note 1: The maximum f
Note 2: DC insertion gain is defined as V
Note 3: OS voltages above V
Note 4: For MAX7400/MAX7403, f
Note 5: The input frequencies, f
Insertion Gain Relative to DC Gain
(Note 5)
COM
A
DD
DD
-100
-120
= +25°C; unless otherwise noted.)
-20
-40
-60
-80
20
0
= +5V for MAX7403, V
= +5V for MAX7400/MAX7403, V
= V
0
sinusoidal input at 0.2f
OS
MAX7400/MAX7404 (r = 1.5)
= V
PARAMETER
1
FREQUENCY RESPONSE
INPUT FREQUENCY (kHz)
DD
/ 2; f
2
_______________________________________________________________________________________
CLK
C
is defined as the clock frequency, f
3
DD
= 100kHz; T
DD
= +3V for MAX7407; filter output measured at OUT; 10kΩ
C
IN
f
.
C
4
- 1V saturate the input and result in a 75µA typical input leakage current.
= 1kHz
, are selected at the peaks and troughs of the frequency responses.
OSC
(kHz)
DD
5
A
f
f
f
f
f
f
f
f
f
f
f
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
= T
= +3V for MAX7404/MAX7407; V
OUT
= 0.640f
= 0.784f
= 0.902f
= 0.956f
= 0.992f
= 1.000f
= 1.200f
= 1.261f
= 1.533f
= 0.408f
= 2.875f
MIN
38
-0.04
-0.08
/ V
0.24
0.20
0.16
0.12
0.08
0.04
to T
0
·
IN
10
0
C
C
C
C
C
C
C
C
C
C
C
MAX
.
8th-Order, Lowpass, Elliptic,
3
PASSBAND FREQUENCY RESPONSE
f
C
/ C
= 1kHz
MAX7400/MAX7404 (r = 1.5)
; unless otherwise noted. Typical values are at T
202
Switched-Capacitor Filters
OSC
CONDITIONS
INPUT FREQUENCY (Hz)
CLK
(pF). For MAX7404/MAX7407, f
404
= 100
Typical Operating Characteristics
606
·
f
C
, at which the peak SINAD drops to 68dB with a
COM
808
= V
1010
OS
= V
||
50pF load to GND at OUT; SHDN = V
-640
-160
-240
-320
-400
-480
-560
DD
-80
OSC
0
-0.20
-0.20
-0.20
-0.20
-0.20
-0.20
-0.20
/ 2; SHDN = V
MIN
0
(kHz)
MAX7400/MAX7404 (r = 1.5)
300
A
INPUT FREQUENCY (Hz)
-0.11
-0.06
PHASE RESPONSE
TYP
0.02
0.10
0.02
0.14
0.09
34
-58
-59
-60
-60
= +25°C.)
600
·
10
DD
3
; f
/ C
MAX
900
0.20
0.20
0.20
0.20
0.20
0.30
0.30
-50
-54
-54
-54
CLK
OSC
= 100kHz;
1200
f
(pF).
C
= 1kHz
UNITS
dB
1500
DD
5
;