MAX7404CSA+

The MAX7404CSA+ is an 8th order, low pass, elliptic switched capacitor filter (SCF) in 8 pin NSOIC package. This device operates from a single +3V supply. It draws 2mA of supply current and allows corner frequencies from 1Hz to 10KHz and it is ideal for low power antialiasing and post DAC filtering applications. The MAX7404 feature shutdown mode that reduces supply current to 0.2μA. Two clocking options are available, self clocking (through the use of an external capacitor) or external clocking for tighter cut off frequency control. In addition, an offset adjustment pin (OS) allows for adjustment of DC output level. The device provides 82dB of stopband rejection and sharp roll-off with transition ratio of 1.5. The fixed response of this device simplifies the design task to corner frequency selection by setting clock frequency. The MAX7404 is used in ADC anti aliasing, CT2 base stations, speech processing and air bag electronics.

• Supply voltage range from 2.7V to 3.6V
• Operating temperature range from 0°C to 70°C
• 100:1 clock to corner ratio
• Clock to corner tempco of 10ppm/°C
• Output voltage range from 0.25V to 5.25V (0.25V to VDD-0.25V)
• Low output offset voltage of ±5mV at VIN = VCOM = VDD/2
• Internal oscillator frequency of 34KHz
• Insertion gain relative to DC gain is -0.10dB at fIN = 0.371fC

Ứng Dụng

Signal Processing

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