LTC1068 Linear Technology, LTC1068 Datasheet
LTC1068
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LTC1068 Summary of contents
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... FilterCAD The LTC1068 products are available in a 28-pin SSOP surface mount package. A customized version of an LTC1068 family product can be obtained in a 16-lead SO package with internal thin-film resistors. Please contact LTC Marketing for details. , LTC and LT are registered trademarks of Linear Technology Corporation. ...
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... GBW Product Slew Rate Analog Ground Voltage (Note (Note 1) Operating Temperature Range LTC1068C................................................ 0.3V LTC1068I ........................................... – Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER LTC1068CG INV B 1 LTC1068CG-200 HPB/NB 2 BPB 3 LTC1068CG-50 ...
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... Temperature Coefficient O Q Temperature Coefficient DC Offset Voltage (Note 5) (See Table 1) Clock Feedthrough Max Clock Frequency (Note 6) Power Supply Current LTC1068-200 (Internal Op Amps 5V PARAMETER Operating Supply Voltage Range Voltage Swings Output Short-Circuit Current (Source/Sink) DC Open-Loop Gain GBW Product Slew Rate ...
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... Temperature Coefficient O Q Temperature Coefficient DC Offset Voltage (Note 5) (See Table 1) Clock Feedthrough Max Clock Frequency (Note 6) Power Supply Current LTC1068-50 (Internal Op Amps 5V PARAMETER Operating Supply Voltage Range Voltage Swings Output Short-Circuit Current (Source/Sink) DC Open-Loop Gain GBW Product Slew Rate ...
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... Temperature Coefficient O Q Temperature Coefficient DC Offset Voltage (Note 5) (See Table 1) Clock Feedthrough Max Clock Frequency (Note 6) Power Supply Current LTC1068-25 (Internal Op Amps 5V PARAMETER Operating Supply Voltage Range Voltage Swings Output Short-Circuit Current (Source/Sink) DC Open-Loop Gain GBW Product Slew Rate ...
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... CENTER FREQUENCY, f (kHz) O 1068 G01 6 LTC1068-25 (Complete Filter) V CONDITIONS 1MHz CLK OS1 (DC Offset of Input Inverter 5V 1MHz CLK OS2 (DC Offset of First Integrator 5V 1MHz CLK OS3 (DC Offset of Second Integrator) ...
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... S CLK(MAX) (FOR MODE 2, R4 10R2 128 224 160 FREQUENCY, f (kHz) O LTC1068-50 Center Frequency Variation vs Clock Frequency 0.4 MODE 1 0.3 MODE 3 0.2 0 REFERENCE – 0.1 CENTER FREQUENCY WITH f = 0.5MHz CLK – 0.2 0.5 0.75 1.0 1.25 1.5 4.25 CLOCK FREQUENCY (MHz) ...
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... Q 1068 G13 Noise Increase vs R2/R4 Ratio (Mode 3) 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 0 0.2 0.3 0.4 0.5 R2/R4 RATIO LTC1068/LTC1068-200/ LTC1068-25 Power Supply Current vs Power Supply 10.5 9.5 8.5 7.5 6.5 5.5 4 TOTAL POWER SUPPLY (V) 8 LTC1068-50 Noise vs Q 300 250 200 5V 150 3.3V 100 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 0 0.6 0.7 0.8 0.9 1.0 1068 G16 – ...
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... F capacitor (Figure 2). Two internal resistors bias the analog ground pin. For the LTC1068, LTC1068-200 and LTC1068-25, the voltage at the analog ground pin (AGND) for single supply is 0.5 V and for the LTC1068- 0.435 ANALOG GROUND ...
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... Output Pins Each 2nd order section of an LTC1068 device has three outputs that typically source 17mA and sink 6mA. Driving coaxial cables or resistive loads less than 20k will degrade the total harmonic distortion performance of any filter design ...
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... LTC1068, 200 for the LTC1068- CLK O 200, 50 for the LTC1068-50 and 25 for the LTC1068-25. Filter designs often require the f /f CLK to be different from the nominal ratio and in most cases different from each other. Ratios other than the nominal value are possible with external resistors ...
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... Q = 1.005 H = – OHPN – OBP R1 Figure 7. Mode 2, 2nd Order Filter Providing Highpass . Notch, Bandpass and Lowpass Outputs – – 1/4 LTC1068 CLK 1.005 O RATIO – (RATIO)(0.32)(R4 – – OHP OBP ...
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... All DC104 boards are assembled with input, output and power supply test terminals, a 28-lead SSOP filter device (LTC1068CG Series), a dual op amp in an SO-8 for input or output buffers and decoupling capacitors for the filter and op amps. The filter and dual op amps share the power ...
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... LTC1068 Series U U APPLICATIONS INFORMATION supply inputs to the board. Jumpers JPA to JPD on the board configure the filter’s second order circuit modes, jumper JP1 configures the filter for dual or single supply operation and jumpers JP2 (A-D) to JP3 (A-D) configure the op amp buffers as inverting or noninverting. Surface ...
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... U U APPLICATIONS INFORMATION W U LTC1068 Series 15 ...
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... INFORMATION A Surface Mount Printed Circuit Layout A very compact surface mount printed circuit layout can be designed with 0603 size surface mount resistors, capacitors and a 28-pin SSOP of the LTC1068 product family. An example of a printed circuit layout is shown in 70kHz Elliptic Bandpass Filter, f R21 4.99k R11 29 ...
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... R31 U1 R41 C1 R43 R33 R23 R22 R32 R52 GND R62 R64 R44 + V R54 R34 R24 1068 TA09 LTC1068 Series R22 R52 R32 R62 C2 R64 R44 R54 R34 R24 1068 TA08 Solder Side OUT – V 1068 TA10 17 ...
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... LTC1068 Series U TYPICAL APPLICATIONS LTC1068-200 8th Order Linear Phase Lowpass, f for Ultralow Frequency Applications R L1 23.2k 1 INV B INV C R21 12.4k 2 R11 HPB/NB HPC/NC 14.3k R31 10k 3 V BPB BPC IN R41 15.4k 4 LPB LPC LTC1068-200 AGND CLK 0 R43 12.4k ...
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... U TYPICAL APPLICATIONS LTC1068-50 8th Order Linear Phase Lowpass, f for Single Supply Low Power Applictions. Maximum f 20kHz with a 3.3V Supply and 40kHz with a 5V Supply R A1 56. 13.3k 1 INV B R21 20.5k 2 R11 HPB/NB HPC/NC 22.6k R31 10k 3 V BPB IN R41 22.6k 4 LPB 5 SB LTC1068- AGND 8 + 3.3V V 0.1 F ...
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... LTC1068 Series U TYPICAL APPLICATIONS LTC1068-25 8th Order Lowpass, f Attenuation – 50dB at (1.25)(f (1.5)(f ). Maximum f CUTOFF 26.7k 1 INV B R21 10k 2 HPB/NB R11 32.4k R31 10k 3 BPB LPB R61 R51 5 2.21k 4.99k SB LTC1068- AGND 0 R63 8.45k 10 SA R53 11 4.99k LPA ...
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... U TYPICAL APPLICATIONS LTC1068 8th Order Linear Phase Bandpass, f Passband – 3dB at (0.88)(f ) and (1.12)(f CENTER f = 40kHz with 5V Supplies CENTER R L1 63. 7.5k 1 INV B R21 4.99k 2 HPB/NB R11 R31 26.1k 19. BPB IN R41 12.1k 4 LPB LTC1068 AGND 0 R43 10.7k 9 LPA R33 14.7k 10 BPA R23 4.99k ...
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... LTC1068 Series U TYPICAL APPLICATIONS LTC1068 8th Order Linear Phase Bandpass, f Passband – 3dB at (0.88)(f CENTER f = 50kHz with 5V Supplies CENTER R L1 24.9k 1 INV B R21 10k 2 HPB/NB R31 R11 25.5k 24. BPB IN R41 107k 4 LPB AGND LTC1068 0.1 F R63 2.32k 8 SA R53 R43 4.99k 16.9k 9 LPA R33 17 ...
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... U TYPICAL APPLICATIONS LTC1068 8th Order Linear Phase Bandpass, f Passband – 3dB at (0.7)(f ) and (1.3)(f CENTER Burst Response, Maximum f CENTER R L1 348k 1 INV B R21 14.7k 2 HPB/NB R31 R11 10k 11k 3 BPB V IN R41 14.3k 4 LPB AGND LTC1068 0 R43 21.5k 9 LPA R33 11.3k 10 BPA R23 21k ...
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... LTC1068 Series U TYPICAL APPLICATIONS LTC1068-50 8th Order Linear Phase Bandpass, f Passband – 3dB at (0.8)(f ) and (1.2)(f CENTER Low Power Applicaions. Maximum INV B R21 10k 2 HPB/NB R11 36.5k R31 30.1k 3 BPB V IN R41 10.7k 4 LPB R51 R61 5 4.99k SB 1.74k LTC1068- AGND 0 ...
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... U TYPICAL APPLICATIONS LTC1068-25 8th Order Bandpass, f Passband – 3dB at (0.965)(f Maximum f = 80kHz with 5V Supplies CENTER INV B R21 4.99k 2 HPB/NB R11 121k R31 97.6k 3 BPB LPB R61 R51 5 8.87k 4.99k SB LTC1068- AGND 0 R63 6.49k 10 SA R53 11 4.99k ...
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... LTC1068 Series U TYPICAL APPLICATIONS LTC1068-200 8th Order Highpass, f Attenuation – 60dB at (0.6)(f Maximum f = 20kHz with 5V Supplies CUTOFF 66.5k 1 INV B R21 10k 2 HPB/NB R11 18.2k R31 16.5k 3 BPB V IN R41 11.3k 4 LPB 5 SB LTC1068-200 AGND 0 R63 2.55k NC 10 R53 SA 4.99k R43 20.5k 11 LPA R33 36 ...
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... MIN 0.125 (3.175) MIN 0.100 0.010 (2.540 0.254) LTC1068 Series 0.397 – 0.407* (10.07 – 10.33 0.301 – 0.311 (7.65 – 7.90 0.068 – 0.078 (1.73 – 1.99) 0.002 – 0.008 (0.05 – ...
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... LTC1068 Series U TYPICAL APPLICATION LTC1068-200 8th Order Notch, f Attenuation at f NOTCH R11 51. RELATED PARTS PART NUMBER DESCRIPTION LTC1064 Universal Filter, Quad 2nd Order LTC1067/LTC1067-50 Low Power, Dual 2nd Order LTC1164 Low Power Universal Filter, Quad 2nd Order LTC1264 High Speed Universal Filter, Quad 2nd Order ...