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MAX7418 Datasheet(数据表) 3 Page - Maxim Integrated Products

部件型号  MAX7418
说明  5th-Order, Lowpass, Switched-Capacitor Filters
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制造商  MAXIM [Maxim Integrated Products]
网页  http://www.maxim-ic.com
标志 MAXIM - Maxim Integrated Products

MAX7418 Datasheet(HTML) 3 Page - Maxim Integrated Products

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5th-Order, Lowpass,
Switched-Capacitor Filters
_______________________________________________________________________________________
3
Corner-Frequency Range
0.001 to 45
5th-Order, Lowpass,
Switched-Capacitor Filters
ELECTRICAL CHARACTERISTICS—MAX7418–MAX7421 (continued)
(VDD = +5V, filter output measured at OUT, 10k
Ω || 50pF load to GND at OUT, OS = COM, 0.1µF capacitor from COM to GND,
SHDN = VDD, fCLK = 2.2MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
ELECTRICAL CHARACTERISTICS—MAX7422–MAX7425
(VDD = +3V, filter output measured at OUT pin, 10k
Ω || 50pF load to GND at OUT, OS = COM, 0.1µF capacitor from COM to GND,
SHDN = VDD, fCLK = 2.2MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
FILTER CHARACTERISTICS
0.001 to 45
MAX7423/MAX7424
MAX7422/MAX7425
-0.2
0
+0.2
MAX7423/MAX7424
MAX7422/MAX7425
UNITS
kHz
ppm/°C
V
mV
dB
V/V
V
k
mVp-p
k
pF
µA
µA
PARAMETER
SYMBOL
MIN
TYP
MAX
DC Insertion Gain with Output
Offset Removed
0
0.2
0.4
Output Offset Voltage
VOFFSET
±4
±25
Output Voltage Range
0.25
VDD - 0.25
Clock-to-Corner Tempco
10
Offset Voltage Gain
AOS
1
VCOM
fC
Clock-to-Corner Ratio
fCLK/fC
100:1
Input Voltage Range at OS
VOS
VCOM ±0.1
Input Resistance at COM
RCOM
100
140
Clock Feedthrough
3
Resistive Output Load Drive
RL
10
1
CL
50
500
Input Leakage Current at COM
±0.1
±10
Input Leakage Current at OS
±0.1
±10
CONDITIONS
VCOM = VDD / 2
(Note 2)
VIN = VCOM = VDD / 2
Measured with respect to COM
OS to OUT
VIN = 2.5Vp-p
(Note 1)
SHDN = GND, VCOM = 0 to VDD
VOS = 0 to VDD
Maximum Capacitive Load
at OUT
-81
MAX7423
MAX7422
-80
-80
MAX7425
MAX7424
dB
Total Harmonic Distortion plus
Noise
THD+N
-70
fIN = 2kHz,
VIN = 2.5Vp-p,
measurement
bandwidth = 80kHz
1.4
1.5
1.6
Input, COM externally driven
V
COM Voltage Range
1.4
1.5
1.6
Output, COM internally driven
FILTER CHARACTERISTICS
SHUTDOWN
POWER REQUIREMENTS
3.4
4.1
MAX7419/MAX7420
MAX7418/MAX7421
µA
±0.2
±10
V SHDN = 0 to VDD
SHDN Input Leakage Current
UNITS
V
mA
µA
dB
V
V
Supply Voltage
VDD
4.5
5.5
IDD
Supply Current
2.9
3.6
Shutdown Current
I SHDN
0.2
1
Power-Supply Rejection Ratio
PSRR
70
SHDN Input High
VSDH
4.5
SHDN Input Low
VSDL
0.5
Operating mode,
no load
SHDN = GND
IN = COM (Note 4)
PARAMETER
SYMBOL
MIN
TYP
MAX
CONDITIONS




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