LTC1060

U U LTC1060 Universal Dual Filter Building Block FEATURES ■ Guaranteed Filter Specification for ±2.37V and ±5V Supply ■ Operates Up to 30kHz ■ Low Power and 88dB Dynamic Range at ±2.5V Supply ■ Center Frequency Q Product Up to 1.6MHz ■ Guaranteed Offset Voltages ■ Guaranteed Clock-to-Center Frequency Accuracy Over Temperature: 0.3% for LTC1060A 0.8% for LTC1060 ■ Guaranteed Q Accuracy Over Temperature ■ Low Temperature Coefficient of Q and Center Frequency ■ Low Crosstalk, 70dB ■ Clock Inputs TTL and CMOS Compatible U APPLICATIO S ■ Single 5V Supply Medium Frequency Filters ■ Very High Q and High Dynamic Range Bandpass, Notch Filters ■ Tracking Filters ■ Telecom Filters DESCRIPTIO The LTC®1060 consists of two high performance, switched capacitor filters. Each filter, together with 2 to 5 resistors, can produce various 2nd order filter functions such as lowpass, bandpass, highpass notch and allpass. The center frequency of these functions can be tuned by an external clock or by an external clock and resistor ratio. Up to 4th order full biquadratic functions can be achieved by cascading the two filter blocks. Any of the classical filter configurations (like Butterworth, Chebyshev, Bessel, Cauer) can be formed. The LTC1060 operates with either a single or dual supply from ±2.37V to ±8V. When used with low supply (i.e. single 5V supply), the filter typically consumes 12mW and can operate with center frequencies up to 10kHz. With ±5V supply, the frequency range extends to 30kH...