DESCRIPTION
The LTC1061 consists of three high performance, universal filter building blocks. Each filter building block together with an external clock and 2 to 5 resistors can produce various second order functions which are available at its three output pins. Two out of three always provide lowpass and bandpass functions while the third output pin can produce highpass or notch or allpass. The center frequency of these functions can be tuned with an external clock or an external clock and a resistor ratio. For Q < 5, the center frequency ranges from 0.1Hz to 35kHz. For Qs of 10 or above, the center frequency ranges from 0.1Hz to 28kHz.

FEATURES
■ Up to 6th Order Filter Functions with a Single 20-Pin 0.3" Wide Package
■ Center Frequency Range up to 35kHz
■ fO × Q Product up to 1MHz
■ Guaranteed Center Frequency and Q Accuracy Over Temperature
■ Guaranteed Low Offset Voltages Over Temperature
■ 90dB Signal-to-Noise Ratio
■ Filter Operates from Single 4.7V Supply and up to ±8V Supplies
■ Guaranteed Filter Specifications with ±5V Supply and ±2.37V Supply
■ Low Power Consumption with Single 5V Supply
■ Clock Inputs T2L and CMOS Compatible

APPLICATIONS
■ High Order, Wide Frequency Range Bandpass, Lowpass, Notch Filters
■ Low Power Consumption, Single 5V Supply, Clock-Tunable Filters
■ Tracking Filters
■ Antialiasing Filters