LMH32401: LMH32401

Hi,

there are zillions of methods, ready-made DC/DC converters, charge pumps with the 555, ...

What current do you need?

Kai

Hi Kai,

IAs you know LT8365 can convert 9 - 30 V to -125V. I need  a circuit that give -120 to -200V with 5mA current . I need that kind of circuit.

Hi,

this might interest you:

https://sound-au.com/project151.htm

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/954668/ina105-ina105-to-make-a-low-noise-howland-current-source

Take care, 200V can be deadly! You must be a skilled person to build such a circuit. If you are not absolutely sure what you are doing, then please stop here.

Kai

Thank you Kai. But the 200V power circuit will only give a maximum of 5mA to my circuit. The circuit you suggested can give high current. I don't need high current because of driving only APD diode. Actually LT8365 is ideal for me, but unfortunatelyit does not available on the market. I need that kind of circuit.

Regards

The first link shows a circuit provoding an output current of 65mA. My circuit of the second link gives a way smaller output current.

Ok, I have understood, you need a circuit like the LT8365?

Kai