Hello,
I am using a THS4509 amplifier to drive a ADS5500 A/D converter. I interested in findin the Ro of the THS4509 amplifier. The Rout is provided in one of the data sheet curves and from that I derived that Ro = 50 Ohms based on B and Aol. My problem is that I don't know if that is the no load Ro, because Ro will change with load current. For stability I need to know what Ro is with no load. I tried to use TINA TI spice, but the model is giving me about 1 Ohm with close to no load.
Thank you.
I am using a THS4509 amplifier to drive a ADS5500 A/D converter. I interested in findin the Ro of the THS4509 amplifier. The Rout is provided in one of the data sheet curves and from that I derived that Ro = 50 Ohms based on B and Aol. My problem is that I don't know if that is the no load Ro, because Ro will change with load current. For stability I need to know what Ro is with no load. I tried to use TINA TI spice, but the model is giving me about 1 Ohm with close to no load.
Thank you.