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LTC6406 equivalent output capacitance

Category: Datasheet/Specs
Product Number: LTC6406

LTC6406, Page 17 of the datasheet shows the o/p network that look like a series 50Ω resistor with a 3.75pF capacitor shunting each filtered output to AC ground.

Having simulated the o/p the 3.75pF is certainly correct. How is the capacitor value arrived at for this combination of 1.25pF capacitors.

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    •  Analog Employees 
    •  Super User 
    +1 verified

    Hi  ,

    Good day. The capacitors, as seen in Figure 6, were connected in delta. So, by finding its equivalent Y (star) connection, you'll get a 3.75 pF each ( Ceq = 3C = 3*1.25 pF). Each…

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