MAX7480EPA Просмотр технического описания (PDF) - Maxim Integrated
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MAX7480EPA Datasheet PDF : 8 Pages
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8th-Order, Lowpass, Butterworth,
Switched-Capacitor Filter
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF from COM to GND, SHDN =
VDD, fCLK = 100kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
POWER REQUIREMENTS
Supply Voltage
Supply Current
Shutdown Current
Power-Supply Rejection Ratio
VDD
IDD
I SHDN
PSRR
Operating mode, no load, IN = OS = COM
SHDN = GND, CLK driven from 0 to VDD
Measured at DC
4.5
5.5
V
2.9
3.5
mA
0.2
1
µA
60
dB
SHUTDOWN
SHDN Input High
SHDN Input Low
SHDN Input Leakage Current
VSDH
VSDL
V SHDN = 0 to VDD
VDD - 0.5
V
0.5
V
±0.1 ±10
µA
FILTER CHARACTERISTICS
(VDD = +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, SHDN = VDD, VCOM = VOS = VDD/2, fCLK = 100kHz, TA
= TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
fIN = 0.5fC
-0.1
0.0
Insertion Gain Relative to
DC Gain
fIN = fC
fIN = 2fC
-3.5
-3.0
-2.5
dB
-48
-43
fIN = 3fC
-76
-70
Note 1: The maximum fC is defined as the clock frequency fCLK = 100 · fC at which the peak SINAD drops to 68dB with a sinusoidal
input at 0.2fC.
Note 2: DC insertion gain is defined as ∆VOUT / ∆VIN.
Note 3: OS voltages above VDD - 1V saturate the input and result in a 75µA typical input leakage current.
Note 4: fOSC (kHz) ≅ 53 · 103 / COSC (pF).
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