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( File format: PDF, 263612 )
Low Power, Linear Phase 8th Order Lowpass Filter
Linear Technology Inc.

Description
Low power is achieved without sacrificing dynamic range. With single 5V supply, the S/N + THD is up to 75dB. Optimum 91dB S/N is obtained with 7.5V supplies. The clock-to-cutoff frequency ratio of the LTC1164-7 can be set to 50:1 (pin 10 to V + ) or 100:1 (pin 10 to V - ). When the filter operates at the clock-to-cutoff frequency ratio of 50:1, the input is double-sampled to lower the risk of aliasing. The LTC1164-7 is pin-compatible with the LTC1064-X series and LTC1264-7.
Features
Better Than Bessel Roll-Off fCUTOFF up to 20kHz, Single 5V Supply ISUPPLY = 2.5mA (Typ), Single 5V Supply 75dB THD + Noise with Single 5V Supply Phase and Group Delay Response Fully Tested Transient Response with No Ringing Wide Dynamic Range No External Components Needed Available in 14-Lead N and 16-Lead SW Packages




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