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MAX7490 Datasheet(数据表) 4 Page - Maxim Integrated Products

部件型号  MAX7490
说明  Dual Universal Switched-Capacitor Filters
下载  18 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

MAX7490 Datasheet(HTML) 4 Page - Maxim Integrated Products

  MAX7490 数据表 HTML 1Page - Maxim Integrated Products MAX7490 数据表 HTML 2Page - Maxim Integrated Products MAX7490 数据表 HTML 3Page - Maxim Integrated Products MAX7490 数据表 HTML 4Page - Maxim Integrated Products MAX7490 数据表 HTML 5Page - Maxim Integrated Products MAX7490 数据表 HTML 6Page - Maxim Integrated Products MAX7490 数据表 HTML 7Page - Maxim Integrated Products MAX7490 数据表 HTML 8Page - Maxim Integrated Products MAX7490 数据表 HTML 9Page - Maxim Integrated Products Next Button
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Dual Universal Switched-Capacitor Filters
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
FILTER
Center Frequency Range
fO
Mode 1
0.001 to
40
kHz
Clock-to-Center Frequency
Accuracy
fCLK/fO
Mode 1, R1 = R3 = 50k
Ω , R2 = 10kΩ,
Q = 5, deviation from 100:1
±0.2
±0.7
%
Q Accuracy
Mode 1, R1 = R3 = 50k
Ω, R2 = 10kΩ,
Q = 5
±0.2
±2%
fO Temperature Coefficient
±1
ppm/
°C
Q Temperature Coefficient
±5
ppm/
°C
DC Lowpass Gain Accuracy
Mode 1, R1 = R2 = 10k
Ω±0.1
±0.5
%
VOS1
DC offset of input inverter
±3
±12.5
VOS2
DC offset of 1st integrator
±4
±15
DC Offset Voltage
(Figure 8)
VOS3
DC offset of 2nd integrator
±4
±25
mV
Crosstalk (Note 2)
fIN = 10kHz
-60
dB
Input: COM externally driven
VDD/2
- 0.1
VDD/2
VDD/2
+ 0.1
COM Voltage Range
VCOM
Output: COM internally driven
VDD/2
- 0.1
VDD/2
VDD/2
+ 0.1
V
Input Resistance at COM
RCOM
60
80
120
k
Clock Feedthrough
Up to 5th harmonic of fCLK
200
µVRMS
Noise (Note 3)
Mode 1, R1= R2 = R3 = 10k
Ω,
LP output, Q = 1
60
µVRMS
Output Voltage Swing
0.2
VDD - 0.2
V
Input Leakage Current at COM
SHDN = GND, VCOM = 0 to VDD
±0.1
±10
µA
CLOCK
Maximum Clock Frequency
fCLK
4
MHz
EXTCLK = GND, COSC = 1000pF
95
135
175
kHz
Internal Oscillator Frequency
(Note 4)
fOSC
EXTCLK = GND, COSC = 100pF
1.35
MHz
Clock Input High
VDD - 0.5
V
Clock Input Low
0.5
V
Clock Duty Cycle
50
±5%
SHDN AND EXTCLK
Input High
VIH
VDD - 0.5
V
Input Low
VIL
0.5
V
Input Leakage Current
VINPUT = 0 to VDD
±0.4
±10
µA
ELECTRICAL CHARACTERISTICS—MAX7491
(VDD = EXTCLK = +3V, fCLK = 625kHz, TA = TMIN to TMAX, 10k
Ω || 50pF load to VDD/2 at LP_, BP_, and N_/HP_, SHDN = VDD, 0.1µF
from COM to GND, 50% duty-cycle clock input, COM = VDD/2. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)




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