LTC1064 Low Noise, Fast, Quad Universal Filter Building Block FEATURES DESCRIPTIO Four Filters in a 0.3 Inch Wide Package The LTC 1064 consists of four high speed, low noise Maximum Center Frequency: 140kHz switched-capacitor filter building blocks. Each filter build- Customized Version with Internal Resistors ing block, together with an external clock and three to five Available resistors can provide various 2nd order functions like One Half the Noise of the LTC1059/LTC1060/ lowpass, highpass, bandpass and notch. The center fre- LTC1061 Devices quency of each 2nd order function can be tuned with an Maximum Clock Frequency: 7MHz external clock, or a clock and resistor ratio. For Q 5, the Clock-to-Center Frequency Ratio of 50:1 and 100:1 center frequency range is from 0.1Hz to 100kHz. For Q Simultaneously Available 3, the center frequency range can be extended to 140kHz. Power Supplies: 2.375V to 8V Up to 8th order filters can be realized by cascading all four Low Offsets 2nd order sections. Any classical filter realization (such as Low Harmonic Distortion Butterworth, Cauer, Bessel and Chebyshev) can be formed. Available in 24-Pin DIP and SO Wide Packages A customized monolithic version of the LTC1064 includ- U ing internal thin film resistors can be obtained for high APPLICATIO S volume applications. Consult LTC Marketing for details. , LTC and LT are registered trademarks of Linear Technology Corporation. Anti-Aliasing Filters LTCMOS is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Wide Frequency Range Tracking Filters Spectral Analysis Loop Filters TYPICAL APPLICATIO Clock-Tunable 8th Order Cauer Lowpass Filter with f up to 100kHz CUTOFF 13k 66.5k R H2 102k PIN 12 Gain vs Frequency 22.1k 1 24 V INV B INV C IN 10k 10k 2 23 HPB/NB HPC/NC 0 18.25k 12.1k 3 22 BPB BPC 15 10.7k 17.4k 4 21 R L2 LPB LPC 30 26.7k 5 20 SB SC 45 f = 5MHz CLK 6 19 RIPPLE = 0.1dB 60 AGND V 8V LTC1064 0.1F 7 18 + 75 8V V CLK 5MHz f = 1MHz 0.1F CLK 8 17 90 RIPPLE = 0.05dB SA 50/100 8V 10k V OUT 9 16 105 LPA LPD 41.2k 49.9K 10 15 120 BPA BPD 12.7k 11.5K 11 14 135 HPA/NA HPD 1k 10k 100k 1M 14k (FROM 12 13 INPUT FREQUENCY (Hz) INV A INV D R , R ) H2 L2 121k 1064 TA02 10k FOR f = 5MHz, ADD C1 = 10pF BETWEEN PINS 4, 1 WIDEBAND NOISE 140V CLK RMS C2 = 10pF BETWEEN PINS 21, 24 C3 = 27pF BETWEEN PINS 9, 12 1064 TA01 1064fb 1 GAIN (dB) U ULTC1064 ABSOLUTE AXI U RATI GS (Note 1) + Total Supply Voltage (V to V ) ............................. 16V Storage Temperature Range ................ 65C to 150C Power Dissipation............................................. 500mW Lead Temperature (Soldering, 10 sec)................. 300C Operating Temperature Range LTC1064AC/LTC1064C.................... 40C to 85C LTC1064AM LTC1064M (OBSOLETE) ............... 55C to 125C UUW PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW ORDER PART ORDER PART NUMBER NUMBER INV B 1 24 INV C INV B 1 24 INV C HPB/NB 2 23 HPC/NC HPB/NB 2 23 HPC/NC BPB 3 22 BPC LTC1064ACN BPB 3 22 BPC LTC1064CSW LPB 4 21 LPC LPB 4 21 LPC LTC1064CN SB 5 20 SC SB 5 20 SC AGND 6 19 V AGND 6 19 V + + V 7 18 CLK V 7 18 CLK SA 8 17 50/100 SA 8 17 50/100 LPA 9 16 LPD LPA 9 16 LPD BPA 10 15 BPD BPA 10 15 BPD HPA/NA 11 14 HPD HPA/NA 11 14 HPD INV A 12 13 INV D INV A 12 13 INV D SW PACKAGE N PACKAGE 24-LEAD PLASTIC SO WIDE 24-LEAD PLASTIC DIP T = 100C, = 85C/ W T = 110C, = 65C/W JMAX JA JMAX JA LTC1064ACJ J PACKAGE 24-LEAD CERAMIC DIP LTC1064CJ T = 150C, = 100C/W JMAX JA LTC1064AMJ LTC1064MJ OBSOLETE PACKAGE Consider the 24-Lead N 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: