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MAX7409 Datasheet(数据表) 3 Page - Maxim Integrated Products |
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MAX7409 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 page 
5th-Order, Lowpass, Switched-Capacitor Filters _______________________________________________________________________________________ 3 5th-Order, Lowpass, Switched-Capacitor Filters ELECTRICAL CHARACTERISTICS—MAX7409/MAX7410 (VDD = +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF capacitor from COM to GND, SHDN = VDD, fCLK = 100kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) ELECTRICAL CHARACTERISTICS—MAX7413/MAX7414 (VDD = +3V, filter output measured at OUT pin, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF capacitor from COM to GND, SHDN = VDD, fCLK = 100kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) CONDITIONS MIN TYP MAX SYMBOL PARAMETER IN = COM (Note 4) SHDN = GND Operating mode, no load 0.5 VSDL SHDN Input Low 4.5 VSDH SHDN Input High 70 PSRR Power-Supply Rejection Ratio 0.2 1 I SHDN Shutdown Current 1.2 1.5 Supply Current IDD 4.5 5.5 VDD Supply Voltage V V dB µA mA V UNITS SHDN Input Leakage Current V SHDN = 0 to VDD ±0.2 ±10 µA POWER REQUIREMENTS SHUTDOWN µA ±0.1 ±10 VOS = 0 to VDD Input Leakage Current at OS µA ±0.1 ±10 SHDN = GND, VCOM = 0 to VDD Input Leakage Current at COM Maximum Capacitive Output Load Drive UNITS kHz ppm/°C V mV dB dB V/V V V mVp-p k Ω pF PARAMETER SYMBOL MIN TYP MAX DC Insertion Gain with Output Offset Removed -0.2 0 +0.2 Output Offset Voltage VOFFSET ±4 ±25 Output Voltage Range 0.25 VDD - 0.25 Clock-to-Corner Tempco 10 Total Harmonic Distortion plus Noise THD+N -83 Offset Voltage Gain AOS 1 Corner Frequency fC 0.001 to 15 Clock-to-Corner Ratio fCLK / fC 100:1 COM Voltage Range VCOM 1.4 1.5 1.6 VCOM ±0.1 Clock Feedthrough 3 Resistance Output Load Drive RL 10 1 CL 50 500 CONDITIONS VCOM = VDD / 2 (Note 2) VIN = VCOM = VDD / 2 fIN = 200Hz, VIN = 2.5Vp-p, measurement bandwidth = 22kHz Input, COM externally driven OS to OUT Input, OS externally driven (Note 1) 1.4 1.5 1.6 k Ω Input Resistance at COM RCOM 110 180 Input Voltage Range at OS VOS MAX7413 MAX7414 -81 FILTER CHARACTERISTICS V Output, COM unconnected |
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