
Maxim Integrated
General Description
The MAX7480 8th-order, lowpass, Butterworth, switched-capacitor filter (SCF) operates from a single +5V supply. The device draws only 2.9mA of supply current and allows corner frequencies from 1Hz to 2kHz, making it ideal for low-power post-DAC filtering and anti-aliasing applications. The MAX7480 features a shutdown mode, which reduces the supply current to 0.2µA.
FEATUREs
♦ 8th-Order, Lowpass Butterworth Filter
♦ Low Noise and Distortion: -73dB THD + Noise
♦ Clock-Tunable Corner Frequency (1Hz to 2kHz)
♦ 100:1 Clock-to-Corner Ratio
♦ +5V Single-Supply Operation
♦ Low Power
2.9mA (Operating Mode)
0.2µA (Shutdown Mode)
♦ Available in 8-Pin SO/DIP Package
♦ Low Output Offset: ±5mV
APPLICATIONs
ADC Anti-Aliasing
Post-DAC Filtering