THS7530: Output of IC

Busra Timur Ustundag

Part Number: THS7530
Other Parts Discussed in Thread: THS4521

To whom it may concern,

We are planning to use the product in the pre-ADC amplifier stage just before THS4521. There is a high pass filter at the output of the THS7530. I cannot find descriptive information regarding purpose of using this filter. Is this filter absolutely recommended to use? I am asking because cut off this filter coincide to my frequency band, which is between 150 kHz and 2 MHz. Could I change the values of these components to shift cut off frequency?

Thank you for your attention and the time you spent.

over 3 years ago

0 kai klaas69 over 3 years ago

Guru 140200 points

Hi Busra,

a schematic would be helpful

Kai

0 Sam Burnett over 3 years ago

TI__Expert 3620 points

Hi Busra,

Depending on the application, the device can be AC coupled or DC coupled to the next stage. When you see a high-pass filter (series capacitors) on the output, this is simply the AC coupling configuration. If you would like to keep these capacitors in your circuit but you are concerned about the low frequency cutoff, you can increase the value of the capacitance.

Best,

Sam

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THS7530: Output of IC