MAX260, MAX261, MAX262 Microprocessor Programmable Universal Active Filters
The MAX260 MAX261 MAX262 CMOS dual second-order universal switched-capacitor active Filters allow Microprocessor control of precise Filter functions. No external components are required for a variety of bandpass, lowpass, highpass, notch, and allpass configurations. Each device contains two second-order Filter sections that place center frequency, Q, and Filter operating mode under programmed control.
An input Clock along with a 6-bit f0 program input, determine the filter's center or corner frequency without affecting other Filter parameters. The Filter Q is also programmed independently. Separate Clock inputs for each Filter section operate with either a crystal, RC network, or external Clock Generator
The MAX260 has offset 739 and DC specifications superior to the MAX261 and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261 handles center frequencies to 57kHz, while the MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios. All devices are available in 24-pin DIP and small outline packages in commercial, extended, and military temperature ranges.
By Maxim Integrated Products
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