Datasheet
MAX7401/MAX7405
8th-Order, Lowpass, Bessel,
Switched-Capacitor Filters
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ELECTRICAL CHARACTERISTICS—MAX7401 (continued)
(V
DD
= +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF from COM to GND,
SHDN = V
DD
, f
CLK
= 100kHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
ELECTRICAL CHARACTERISTICS—MAX7405
(V
DD
= +3V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF from COM to GND,
SHDN = V
DD
, f
CLK
= 100kHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
MIN TYP MAX
SYMBOLPARAMETER
Measured at DC
SHDN = GND, CLK driven from 0 to V
DD
Operating mode, no load, IN = OS = COM
0.5V
SDL
SHDN Input Low
V
DD
- 0.5V
SDH
SHDN Input High
60PSRRPower-Supply Rejection Ratio
0.2 1I
SHDN
Shutdown Current
2 3.5Supply Current I
DD
4.5 5.5V
DD
Supply Voltage
V
V
dB
µA
mA
V
UNITS
SHDN Input Leakage Current V
SHDN
= 0 to V
DD
±0.1 ±10 µA
POWER REQUIREMENTS
SHUTDOWN
µA±0.1 ±10V
OS
= 0 to (V
DD
- 1V) (Note 3)Input Leakage Current at OS
µA±0.1 ±10
SHDN = GND, V
COM
= 0 to V
DD
Input Leakage Current at COM
Maximum Capacitive
Load at OUT
UNITS
kHz
ppm/°C
V
mV
dB
dB
V/V
V
mVp-p
kΩ
pF
PARAMETER SYMBOL
MIN TYP MAX
DC Insertion Gain with
Output Offset Removed
-0.1 0.03 0.3
Output Offset Voltage V
OFFSET
±5 ±25
Output Voltage Range 0.25 V
DD
-
0.25
Clock-to-Corner Tempco 10
Total Harmonic Distortion
plus Noise
THD+N -84
OS Voltage Gain to OUT A
OS
1
Corner Frequency f
C
0.001 to 5
Clock-to-Corner Ratio f
CLK
/
f
C
100:1
COM Voltage Range V
COM
V
DD
/ 2
V
DD
/ 2
V
DD
/ 2
- 0.1 + 0.1
Clock Feedthrough 10
Resistance Output Load Drive R
L
10 1
C
L
50 500
CONDITIONS
V
COM
= V
DD
/ 2 (Note 2)
V
IN
= V
COM
= V
DD
/ 2
f
IN
= 200Hz, V
IN
= 2.5Vp-p,
measurement bandwidth = 22kHz
(Note 1)
kΩInput Resistance at COM R
COM
75 125
COM internally biased or externally driven
VInput Voltage Range at OS V
OS
V
COM
±0.1
FILTER CHARACTERISTICS