Datasheet

MAX7400/MAX7403/MAX7404/MAX7407
8th-Order, Lowpass, Elliptic,
Switched-Capacitor Filters
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX7400/MAX7403
(V
DD
= +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, SHDN = V
DD
, OS = COM, 0.1µF from COM to GND,
f
CLK
= 100kHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
DD
to GND
MAX7400/MAX7403 ..............................................-0.3V to +6V
MAX7404/MAX7407 ..............................................-0.3V to +4V
IN, OUT, COM, OS, CLK............................-0.3V to (V
DD
+ 0.3V)
SHDN........................................................................-0.3V to +6V
OUT Short-Circuit Duration...................................................1sec
Continuous Power Dissipation (T
A
= +70°C)
SO (derate 5.88mW/°C above +70°C)..........................471mW
DIP (derate 9.1mW/°C above +70°C)...........................727mW
Operating Temperature Ranges
MAX740_C_A .....................................................0°C to +70°C
MAX740_E_A ..................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
V
OS
= 0 to (V
DD
- 1V) (Note 3)
(Note 1)
SHDN = GND, V
COM
= 0 to V
DD
V
IN
= V
COM
= V
DD
/ 2
Output, COM internally biased
V
COM
= V
DD
/ 2 (Note 2)
Input, COM externally driven
CONDITIONS
µA±0.1 ±10Input Leakage Current at OS
µA±0.1 ±10Input Leakage Current at COM
pF50 500C
L
Maximum Capacitive Load
at OUT
kΩ10 1R
L
Resistive Output Load Drive
mVp-p10Clock Feedthrough
kΩ75 125R
COM
Input Resistance at COM
V
DD
/ 2
V
DD
/ 2
V
DD
/ 2
- 0.2 + 0.2
V
COM
COM Voltage Range V
V
DD
/ 2
V
DD
/ 2
V
DD
/ 2
- 0.5 + 0.5
100:1f
CLK
/f
C
Clock-to-Corner Ratio
kHz0.001 to 10f
C
Corner Frequency
VV
COM
±0.1V
OS
Input Voltage Range at OS
-82
ppm/°C10Clock-to-Corner Tempco
V0.25 V
DD
- 0.25Output Voltage Range
mV±5 ±25V
OFFSET
Output Offset Voltage
dB-0.1 0.15 0.3
DC Insertion Gain with
Output Offset Removed
UNITSMIN TYP MAXSYMBOLPARAMETER
C
OSC
= 1000pF (Note 4) kHz29 38 48f
OSC
Internal Oscillator Frequency
V
CLK
= 0 or 5V µA±15 ±30I
CLK
Clock Input Current
V
DD
- 0.5V
IH
V
0.5V
IL
Clock Input High
f
IN
= 200Hz, V
IN
= 4Vp-p,
measurement bandwidth = 22kHz
dB
-80
THD+N
Total Harmonic Distortion
plus Noise
MAX7400
MAX7403
V/V1A
OS
OS Voltage Gain to OUT
Clock Input Low V
FILTER CHARACTERISTICS
CLOCK