MAX271ENG(2012) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX271ENG Datasheet PDF : 16 Pages
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MAX270/MAX271
Digitally-Programmed, Dual
2nd-Order Continuous Lowpass Filter
ABSOLUTE MAXIMUM RATINGS
V+ to V-..................................................................-0.3V to +17V
V+ to GND.............................................................-0.3V to +8.5V
V- to GND............................................................... -0.3V to -8.5V
Input Voltage to GND, Any Input Pin.....(V- - 0.3V) to (V+ + 0.3V)
Duration of Output Short Circuit to GND....................Continuous
Continuous Power Dissipation (TA = +70NC)
MAX270
PDIP (derate 11.1mW/NC above +70NC)......................889mW
SO (W) (derate 10mW/NC above +70NC.......................800mW
MAX271
PDIP (derate 13.3mW/NC above +70NC)....................1067mW
SO (W) (derate 11.7mW/NC above +70NC)................... 941mw
Operating Temperature Ranges:
MAX27_C_ _........................................................ 0NC to +70NC
MAX27_E_ _..................................................... -40NC to +85NC
Storage Temperature Range............................. -65NC to +165NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow)
Lead(Pb)-free................................................................+260NC
Containing lead(Pb)......................................................+240NC
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.
ELECTRICAL CHARACTERISTICS
(V+ = +5V, V- = -5V; TA = +25NC, unless otherwise noted.)
PARAMETER
SYMBOL
FILTER CHARACTERISTICS
Operating Frequency Range
(Note 1)
Programmed Cutoff Frequency (fC)
Range
CONDITIONS
MIN TYP MAX UNITS
2
1 to 25
MHz
kHz
Programmed Cutoff Frequency
Error
Filter Gain
Maximum Gain (Peaking)
Wideband Noise
DC CHARACTERISTICS
fC code = 53 (2.536kHz typ)
fC code = 127 (25kHz typ)
Q2.9
%
Q9.5
fC code = 0 (1kHz typ),
fIN = 1kHz
-3.6
-2.4
TA = TMIN to TMAX
fIN = 8kHz
fC code = 127 (25kHz typ), fIN = 25kHz
-6
-33
dB
-0.5
TA = TMIN to TMAX
fIN = 200kHz
-34
fC code = 0 (1kHz typ)
fC code = 127 (25kHz typ)
0.15
dB
0.15
50Hz to 50kHz bandwidth
fC code = 0
(1kHz typ)
fC code = 127
(25kHz typ)
12
FVRMS
38
DC Output Signal Swing
OUTA, OUTB, OP OUT (MAX270)
RLOAD = 5kI, TA = TMIN to TMAX
-3
+3
V
OUTA, OUTB, T/H OUT (MAX271)
Offset Voltage at Outputs
OUTA, OUTB, OP OUT (MAX270)
OUTA, OUTB, T/H OUT (MAX271)
-2
+2
mV
DC Input Leakage Current
INA, INB (MAX270)
INA, INB (MAX271)
TA = TMIN to TMAX
-1
+1
FA
2
Maxim Integrated
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