MAX7403 MAXIM [Maxim Integrated Products], MAX7403 Datasheet
MAX7403
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MAX7403 Summary of contents
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... Rev 2; 6/99 General Description The MAX7400/MAX7403/MAX7404/MAX7407 8th-order, lowpass, elliptic, switched-capacitor filters (SCFs) oper- ate from a single +5V (MAX7400/MAX7403) or +3V (MAX7404/MAX7407) supply. These devices draw 2mA of supply current and allow corner frequencies from 1Hz to 10kHz, making them ideal for low-power anti- aliasing and post-DAC filtering applications. They fea- ture a shutdown mode that reduces the supply current to 0.2µ ...
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... Switched-Capacitor Filters ABSOLUTE MAXIMUM RATINGS V to GND DD MAX7400/MAX7403 ..............................................-0.3V to +6V MAX7404/MAX7407 ..............................................-0.3V to +4V IN, OUT, COM, OS, CLK ............................-0. SHDN........................................................................-0.3V to +6V OUT Short-Circuit Duration...................................................1sec 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 ...
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... ELECTRICAL CHARACTERISTICS—MAX7400/MAX7403 (continued) = +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, SHDN = 100kHz unless otherwise noted. Typical values are at T CLK A MIN MAX PARAMETER SYMBOL POWER REQUIREMENTS Supply Voltage V Supply Current I Shutdown Current I SHDN ...
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Lowpass, Elliptic, Switched-Capacitor Filters ELECTRICAL CHARACTERISTICS—MAX7404/MAX7407 (continued) = +3V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, SHDN = 100kHz unless otherwise noted. ...
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... ELLIPTIC (r = 1.2) FILTER CHARACTERISTICS—MAX7403/MAX7407 (V = +5V for MAX7403 +3V for MAX7407; filter output measured at OUT; 10kΩ 100kHz; T COM OS DD CLK PARAMETER Insertion Gain Relative to DC Gain (Note 5) Note 1: The maximum f is defined as the clock frequency sinusoidal input at 0.2f ...
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... Lowpass, Elliptic, Switched-Capacitor Filters (V = +5V for MAX7400/MAX7403 +25°C; unless otherwise noted.) A MAX7403/MAX7407 (r = 1.2) FREQUENCY RESPONSE 1kHz -20 -40 -60 -80 -100 -120 INPUT FREQUENCY (kHz) SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.5 NO LOAD 2.4 2.3 2.2 MAX7400 MAX7404 2.1 MAX7403 MAX7407 2.0 1.9 1.8 1.7 1.6 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) OFFSET VOLTAGE vs ...
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... MAX7400/MAX7403 +25°C; unless otherwise noted.) A THD PLUS NOISE vs. INPUT SIGNAL AMPLITUDE (MAX7403 LOAD -10 (SEE TABLE A) -20 -30 -40 - -70 -80 - AMPLITUDE (Vp-p) THD PLUS NOISE vs. INPUT SIGNAL AMPLITUDE (MAX7404) 0 -10 -20 -30 -40 -50 -60 -70 -80 - ...
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... IN Filter Input 3 GND Ground 4 V Positive Supply Input: +5V for MAX7400/MAX7403, +3V for MAX7404/MAX7407 DD 5 OUT Filter Output Offset Adjust Input. To adjust output offset, bias OS externally. Connect OS to COM if no offset adjustment needed. Refer to ...
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... The transition ratio is defined as the ratio of the stopband frequency to the corner frequency: The MAX7400/MAX7404 have a transition ratio of 1.5 and a typical stopband rejection of 82dB. The MAX7403/MAX7407 have a transition ratio of 1.2 (pro- viding the steepest rolloff) and a typical stopband . At frequencies S rejection of 60dB. ...
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... C OSC OSC C OSC where for the MAX7400/MAX7403, and for the MAX7404/MAX7407. Since the capacitor value is in picofarads, minimize the stray capacitance at CLK so that it does not affect the internal oscillator frequen- cy. Varying the rate of the internal oscillator adjusts the filter’ ...
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... For single-supply or dual-supply operation, drive CLK and SHDN from GND (V- in dual-supply operation For a ±2.5V supply, use the MAX7400 or MAX7403; DD for a ±1.5V supply, use MAX7404 or MAX7407. For ±5V dual-supply applications, use the MAX291–MAX297. ...
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... Switched-Capacitor Filters Ordering Information (continued) PART TEMP. RANGE MAX7403CSA 0°C to +70°C MAX7403CPA 0°C to +70°C MAX7403ESA -40°C to +85°C MAX7403EPA -40°C to +85°C MAX7404CSA 0°C to +70°C MAX7404CPA 0°C to +70°C MAX7404ESA -40°C to +85°C MAX7404EPA -40°C to +85°C MAX7407CSA 0° ...