DESCRIPTION
The LTC®1061 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 low pass 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
■ Three Filters in a Single Package
■ Up to 6th Order Filter Functions
■ 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
■ Operation from Single 4.7V Supply, Up to ±8V
■ Guaranteed Filter Specifications with ±5V Supply and ±2.37V Supply
■ Low Power Consumption with Single 5V Supply
■ Clock Inputs T2L and CMOS Compatible
■ Available in 20-Pin DIP and 20-Pin SO Wide Package

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