LTC1164 Low Power, Low Noise, Quad Universal Filter Building Block FEATURES DESCRIPTIO Low Power The LTC 1164 consists of four low power, low noise 4 Filters in a 0.3 Wide Package 2nd order switched capacitor filter building blocks. Each 1/2 the Noise of the LTC1059, 60, 61 Devices building block typically consumes 850A supply current. Wide Output Swing Low power is achieved without sacrificing noise and Clock-to-Center Frequency Ratios of 50:1 and 100:1 distortion. Each building block, together with 3 to 5 Operates from 2.37V to 8V Power Supplies resistors, can provide 2nd order functions like lowpass, Customized Version with Internal Resistors Available highpass, bandpass, and notch. The center frequency of Ratio of 50:1 and 100:1 Simultaneously Available each 2nd order section can be tuned with an external clock, or a clock and resistor ratio. For Q < 5, the center frequency U range is from 0.1Hz to 20kHz. Up to 8th order filters can APPLICATIO S be realized by cascading all four 2nd order sections. Any classical filter realization (such as Butterworth, Cauer, Antialiasing Filters Bessel, and Chebyshev) can be formed. Telecom Filters Spectral Analysis A customized monolithic version of the LTC1164 Loop Filters including internal thin film resistors can be obtained. For Fixed Lowpass Filter Requirements use the Consult LTC Marketing for details. LTC1164-XX Series The LTC1164 is manufactured using Linear Technologys , LTC and LT are registered trademarks of Linear Technology Corporation. LTCMOS trademark of Linear Technology Corporation. enhanced LTCMOS silicon gate process. TYPICAL APPLICATIO Dual 5th Order Linear Phase Filter with Dual 5th Order Linear Phase Filter with Stopband Notch Stopband Notch, f = 500kHz CLK 549k 10.00 63.4k 0.0 210k 10.00 1 24 V IN1 20.00 102k 49.9k 2 23 V V 30.00 OUT2 OUT1 133k 36.5k 3 22 40.00 174k 78.7k 4 21 50.00 8.66k V 60.00 OUT1 C1 5 20 70.00 LTC1164 6 19 80.00 V 0.1F 7 18 90.00 + f V CLK 10k 100k 1k 0.1F 8 17 8.66k FREQUENCY (Hz) V OUT2 LTC1164 TA02 174k 78.7k 16 C2 9 133k 36.5k 10 15 SUPPLY TOTAL 49.9k 102k VOLTAGE V HARMONIC DISTORTION SIGNAL/NOISE 11 14 IN 210k 2.5 1V 0.015% (76dB) 86dB 12 13 RMS V IN2 5.0 2V 0.025% (72dB) 92dB RMS 63.4k C1 = 0.0033F 7.5 4V 0.04% (68dB) 98dB RMS C2 = 0.0068F 549k f = 500kHz CLK WIDEBAND NOISE = 50V RMS TOTAL SUPPLY CURRENT = 3mA ALL RESISTORS ARE 1% METAL FILM LTC1164 TA01 1164fa 1 GAIN (dB) U ULTC1164 ABSOLUTE AXI U RATI GS (Note 1) + Total Supply Voltage (V to V ) ............................ 16.5V Operating Temperature Range Power Dissipation.............................................. 500mW LTC1164AM, LTC1164M (OBSOLETE) ..... 55C to 125C Storage Temperature Range ..................65C to 150C LTC1164AC, LTC1164C .......................40C to 85C Lead Temperature (Soldering, 10 sec).................. 300C UUW PACKAGE/ORDER I FOR ATIO TOP VIEW ORDER PART ORDER PART INV B 1 24 INV C TOP VIEW NUMBER NUMBER HPB/NB 2 23 HPC/NC INV B 1 24 INV C BPB 3 22 BPC LTC1164ACN LTC1164CSW HPB/NB 2 23 HPC/NC LPB 4 21 LPC LTC1164CN LTC1164ACSW SB 5 20 SC BPB 3 22 BPC AGND 6 19 V LPB 4 21 LPC + V 7 18 CLK SB 5 20 SC SA 8 17 50/100 AGND 6 19 V LPA 9 16 LPD + V 7 18 CLK BPA 10 15 BPD HPA 11 14 HPD SA 8 17 50/100 INV A 12 13 INV D LPA 9 16 LPD N PACKAGE BPA 10 15 BPD 24-LEAD PDIP HPA 11 14 HPD T = 110C, = 65C/W JMAX JA INV A 12 13 INV D J PACKAGE LTC1164AMJ 24-LEAD CERDIP SW PACKAGE T = 150C, = 100C/W LTC1164MJ 24-LEAD PLASTIC SO JMAX JA T = 110C, = 75C/W JMAX JA LTC1164ACJ OBSOLETE PACKAGE Consider the N24 Package as an Alternate Source LTC1164CJ LTC221/222 POI01 Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25C. (Internal Op Amps) V = 5V, R = 5k unless otherwise noted. A S L PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage Range 2.37 8V Voltage Swings V = 2.5V 1.6 V S V = 5.0V 3.8 4.2 V S V = 7.5V 6.1 V S Output Short Circuit Current (Source/Sink) V = 5.0V 1 mA S DC Open Loop Gain V = 5.0V 80 dB S GBW Product V = 5.0V 2 MHz S Slew Rate V = 5.0V 1.6 V/s S 1164fa 2 U WWW