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LTC1052 Datasheet(PDF) 15 Page - Linear Technology |
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LTC1052 Datasheet(HTML) 15 Page - Linear Technology |
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15 / 26 page ![]() LTC6261/LTC6262/LTC6263 626123fa 15 For more information www.linear.com/LTC6261 typicAl ApplicAtions LTC6261 Second Order Butterworth Frequency Response LTC6261 Third Order Butterworth Frequency Response Bessel Filter Response LTC6261 3.3V U1 OUT IN 626123 TA05 R2 15.4k R3 15.4k C2 47pF C1 150pF VREF R1 15.4k Supply current consumption is around 230µA. The values of resistors chosen minimize consumption at the expense of noise. FREQUENCY (MHz) 0.001 0.01 0.1 1 4 –70.0 –60.0 –50.0 –40.0 –30.0 –20.0 –10.0 0 10.0 626123 TA06 1VP-P 10µs/Div 1.0 1.5 2.0 2.5 3.0 3.5 4.0 626123 TA07 The frequency response shows an expected roll-off of two poles along with a gentle droop near the 3dB point; the transient response is very clean. Third Order Butterworth Filter Maximallyflatmagnituderesponseinthepass-bandarises from use of a Butterworth filter. A third R-C stage is added in front of the filter in order to maximize the roll-off for a single amplifier circuit. LTC6261 3.3V U1 OUT IN 626123 TA08 R7 15.4k R6 5.54k C5 47pF C4 470pF C3 470pF VREF R5 7.7k R4 7.7k Supply current consumption is around 235µA. The values of resistors chosen minimize consumption at the expense of noise. FREQUENCY (MHz) 0.001 0.01 0.1 1 2 –70.0 –60.0 –50.0 –40.0 –30.0 –20.0 –10.0 0 10.0 626123 TA09 |
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