My name is Eric and I'm electrical engineering student.
I'm designing now a photodiode amplifier detector using a AD 549 as transimpedance amplifier. I would like to have a variable gain( at least 04 differents values) through selectable feedback way.
I need your advice to know the type of electronic switch that can help me to realise a selectable feedback resistor numerically.
I was looking for example the ADG 804 for that purpose and I don't know if it is possible!
Please, I'm waiting for your advice and your propositions
Eric Basile TCHINDA