LTC1164-6 Datasheet | Linear Technology

LTC1164-6 Low Power 8th Order Pin Selectable Elliptic or Linear Phase Lowpass Filter Features s s s s s s DESCRIPTIO s s s 8th Order Pin Selectable Elliptic or Bessel Filter in a 14-Pin Package 4m A Supply Current with ± 5V Supplies 64d B Attenuation at 1.44 f CUTOFF (Elliptic Response) f CUTOFF up to 30k Hz (50:1 f CLK to f CUTOFF Ratio) 110µVRMS Wideband Noise with ± 5V Supplies Operates at Single 5V Supply with 1VRMS Input Range Operates up to ± 8V Supplies TTL/CMOS patible Clock Input No External ponents The LTC1164-6 is a monolithic 8th order elliptic lowpass filter featuring clock-tunable cutoff frequency and low power supply current. Low power operation is achieved without promising noise or distortion performance. At ± 5V supplies the LTC1164-6 uses only 4m A supply current while keeping wideband noise below 110µVRMS. With a single 5V supply, the LTC1164-6 can provide up to 10k Hz cutoff frequency and 80d B signal-to-noise ratio while consuming only 2.5m A. The LTC1164-6 provides an elliptic lowpass rolloff with stopband attenuation of 64d B at 1.44 f CUTOFF and an f CLKto-f CUTOFF ratio of 100:1 (pin 10 to V - ). For a ratio of 100:1, f CUTOFF can be clock-tuned up to 10k Hz. For a f CLK-tof CUTOFF ratio of 50:1 (pin 10 to V +), the LTC1164-6 provides an elliptic lowpass filter with f CUTOFF frequencies up to 20k Hz. When pin 10 is connected to ground, the LTC1164-6 approximates an 8th order linear phase response with 65d B attenuation at 4.5 f - 3d B and f CLK / f - 3d B ratio of 160:1. The LTC1164-6 is pin patible with the LTC1064-1. APPLICATI s s s Anti-Aliasing Filters Battery-Operated Instruments Telemunication Filters TYPICAL APPLICATI 10k Hz Anti-Aliasing Elliptic Filter NC VIN 1 2 3 8V 4 5 6 7 LTC1164-6 14 13 12 11 10 9 8 1164-6 TA01 - 8V CLK = 1MHz - 8V VOUT GAIN (d B) - 10 - 20 - 30 - 40 - 50 - 60 - 70 WIDEBAND NOISE = 115µVRMS NOTE: THE CONNECTION FROM PIN 7 TO PIN 14 SHOULD BE MADE UNDER THE PACKAGE. THE POWER SUPPLIES SHOULD BE BYPASSED BY A...