Part Number:THS3061
Dear Technical Support Team,
Datasheet shows decoupling below.
My circuit has two 0.1-μF in parallel for power supply(Vs).
Should I change from 0.1-μF to 6.8-μF ?
I think that PSRR is not good when noise frequency is high, so I'd like to reduce noise of high frequency with decoupling.
Best Regards,
ttd
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Proper power-supply decoupling
- Use a minimum 6.8-μF tantalum capacitor in parallel with a 0.1-μF ceramic capacitor on each supply terminal. It may be possible to share the tantalum among several amplifiers depending on the application, but a 0.1-μF ceramic capacitor should always be used on the supply terminal of every amplifier. In addition, the 0.1-μF capacitor should be placed as close as possible to the supply terminal.
As this distance increases, the inductance in the connecting etch makes the capacitor less effective. The designer should strive for distances of less than 0.1 inch between the device power terminal and the ceramic capacitors.
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Best Regards,
ttd