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MAX7408 Datasheet(数据表) 3 Page - Maxim Integrated Products |
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MAX7408 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 page 
5th-Order, Lowpass, Elliptic, Switched-Capacitor Filters _______________________________________________________________________________________ 3 5th-Order, Lowpass, Elliptic, Switched-Capacitor Filters ELECTRICAL CHARACTERISTICS—MAX7408/MAX7411 (continued) (VDD = +5V; filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, SHDN = VDD, OS = COM, 0.1µF from COM to GND, fCLK = 100kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) ELECTRICAL CHARACTERISTICS—MAX7412/MAX7415 (VDD = +3V, filter output measured at OUT pin, 10kΩ || 50pF load to GND at OUT, SHDN = VDD, OS = COM, 0.1µF from COM to GND, fCLK = 100kHz; TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) CONDITIONS MIN TYP MAX SYMBOL PARAMETER Measured at DC 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 ISHDN Shutdown Current 1.16 1.5 Supply Current IDD 4.5 5.5 VDD Supply Voltage V V dB µA mA V UNITS SHDN Input Leakage Current VSHDN = 0 to VDD ±0.2 ±10 µA VOS Input Voltage Range at OS 110 180 RCOM Input Resistance at COM k Ω (Note 1) TA = +25°C Measured with respect to COM OS to OUT fIN = 200Hz, VIN = 2.5Vp-p, measurement bandwidth = 22kHz VIN = VCOM = VDD / 2 VCOM = VDD / 2 (Note 2) CONDITIONS 50 500 CL 10 1 RL Resistance Output Load Drive 3 Clock Feedthrough ±0.1 VDD - 0.1 VDD VDD + 0.1 2 2 2 VCOM COM Voltage Range 100:1 fCLK/fC Clock-to-Corner Ratio 0.001 to 15 fC Corner-Frequency Range 1 AOS Offset Voltage Gain -79 THD+N Total Harmonic Distortion plus Noise 10 Clock-to-Corner Tempco 0.25 VDD - 0.25 Output Voltage Range ±4 ±25 VOFFSET Output Offset Voltage 0 0.2 0.4 DC Insertion Gain with Output Offset Removed MIN TYP MAX SYMBOL PARAMETER pF k Ω mVp-p V V V/V dB dB mV V ppm/°C kHz UNITS Maximum Capacitive Load at OUT Input Leakage Current at COM SHDN = GND, VCOM = 0 to VDD ±0.2 ±10 µA Input Leakage Current at OS VOS = 0 to VDD ±0.2 ±10 µA POWER REQUIREMENTS SHUTDOWN FILTER CHARACTERISTICS |
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