- 8th-Order Lowpass Elliptic Filter
- Low Noise and Distortion -82dB THD + Noise (MAX7400)
- Clock-Tunable Corner Frequency (1Hz to 10kHz)
- 100:1 Clock-to-Corner Ratio
- Single-Supply Operation
- +5V (MAX7400/MAX7403)
- +3V (MAX7404/MAX7407)
- Low Power
- 2mA (Operating Mode)
- 0.2µA (Shutdown Mode)
- Available in 8-Pin SO and DIP Packages
- Low Output Offset: ±5mV
Two clocking options are available: self-clocking (through the use of an external capacitor) or external clocking for tighter cutoff-frequency control. In addition, an offset adjustment pin (OS) allows for the adjustment of the DC output level.
The MAX7400/MAX7404 provide 82dB of stopband rejection and a sharp rolloff with a transition ratio of 1.5. The MAX7403/MAX7407 provide a sharper rolloff with a transition ratio of 1.2, while still delivering 60dB of stopband rejection. The fixed response of these devices simplifies the design task to corner-frequency selection by setting a clock frequency. The MAX7400/MAX7403/MAX7404/MAX7407 are available in 8-pin SO and DIP packages.