LTC1164-6 Low Power 8th Order Pin Selectable Elliptic or Linear Phase Lowpass Filter FEATURES DESCRIPTIO 8th Order Pin Selectable Elliptic or Bessel Filter The LTC 1164-6 is a monolithic 8th order elliptic lowpass filter featuring clock-tunable cutoff frequency and low 4mA Supply Current with 5V Supplies power supply current. Low power operation is achieved 64dB Attenuation at 1.44 f (Elliptic Response) CUTOFF f Up to 30kHz (50:1 f to f Ratio) without compromising noise or distortion performance. CUTOFF CLK CUTOFF At 5V supplies the LTC1164-6 uses only 4mA supply 110V Wideband Noise with 5V Supplies RMS current while keeping wideband noise below 110V . Operates at Single 5V Supply with 1V RMS RMS Input Range With a single 5V supply, the LTC1164-6 can provide up to 10kHz cutoff frequency and 80dB signal-to-noise ratio Operates Up to 8V Supplies while consuming only 2.5mA. TTL/CMOS Compatible Clock Input No External Components The LTC1164-6 provides an elliptic lowpass rolloff with Available in 14-Pin Dip and 16-Pin SO Wide Packages stopband attenuation of 64dB at 1.44 f and an f - CUTOFF CLK ratio of 100:1 (Pin 10 to V ). For a ratio of 100:1, to-f CUTOFF U f can be clock-tuned up to 10kHz. For a f -to- CUTOFF CLK APPLICATIO S + f ratio of 50:1 (Pin 10 to V ), the LTC1164-6 CUTOFF Antialiasing Filters frequencies provides an elliptic lowpass filter with f CUTOFF Battery-Operated Instruments up to 20kHz. When Pin 10 is connected to ground, the Telecommunication Filters LTC1164-6 approximates an 8th order linear phase re- and f /f sponse with 65dB attenuation at 4.5 f 3dB CLK 3dB ratio of 160:1. The LTC1164-6 is pin compatible with the LTC1064-1. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATIO 10kHz Anti-Aliasing Elliptic Filter Frequency Response 1 14 NC 0 2 13 V NC 10 IN 3 12 8V 20 4 11 8V LTC1164-6 CLK = 1MHz 30 5 10 8V 40 6 9 V OUT 50 7 8 60 1164-6 TA01 70 80 WIDEBAND NOISE = 115V RMS NOTE: THE CONNECTION FROM PIN 7 TO PIN 14 SHOULD BE MADE 1 10 100 UNDER THE PACKAGE. THE POWER SUPPLIES SHOULD BE BYPASSED BY A 0.1F CAPACITOR AS CLOSE TO THE PACKAGE AS POSSIBLE. FREQUENCY (kHz) 1164-6 TA02 11646fa 1 GAIN (dB) U ULTC1164-6 (Note 1) ABSOLUTEXAI U RATI GS + Operating Temperature Range Total Supply Voltage (V to V ) ............................. 16V + LTC1164-6C ...................................... 40C to 85C Input Voltage (Note 2) ......... (V + 0.3V) to (V 0.3V) LTC1164-6M (OBSOLETE) .............. 55C to 125C Output Short-Circuit Duration ......................... Indefinite Storage Temperature Range ................ 65C to 150C Power Dissipation............................................. 400mW Lead Temperature (Soldering, 10 sec)................. 300C Burn-In Voltage ...................................................... 16V PACKAGE/ORDER I FOR ATIO TOP VIEW ORDER PART ORDER PART 1 CONNECT 2 TOP VIEW NC 14 NUMBER NUMBER 2 NC V 13 IN NC CONNECT 2 1 16 LTC1164-6CN LTC1164-6CSW 3 V GND 12 V NC 2 15 IN + 4 CLK V 11 GND V 3 14 + 5 ELL/BESS GND 10 V NC 4 13 6 V LP6 9 OUT GND CLK 5 12 7 NC CONNECT 1 8 NC ELL/BESS 6 11 LP6 NC 7 10 N PACKAGE 14-LEAD PDIP CONNECT 1 V 8 9 OUT T = 110C, = 65C/W JMAX JA SW PACKAGE J PACKAGE 14-LEAD CERDIP 16-LEAD PLASTIC SO T = 150C, = 65C/W LTC1164-6CJ JMAX JA T = 110C, = 85C/W JMAX JA LTC1164-6MJ OBSOLETE PACKAGE Consider the N14 Package as an Alternate Source Order Options Tape and Reel: Add TR Lead Free: Add PBF Lead Free Tape and Reel: Add TRPBF Lead Free Part Marking: