Other Parts Discussed in Thread: LMP92066, AMC7832
I am an RF engineer using LMP92066 EVM to bias LDMOS and Gan Power amplifiers (PA).
I like to use it to drive an hybrid PA composed of one stage LDMOS and a second stage Gan, meaning I like to control on channel 1 a voltage between 0 & 5V and on channel 2 a voltage between -2.5 & -5V, is it doable with this EVM board please ?
I tried but both channel of LMP92066 switch have the same VSSB reference voltage, this common voltage prevent me to perform such hybrid mode bias control. beside when a negative voltage is detected on supply input the full switch move to Gan mode, this mode doesn't seems to be selected per channel.
Does TI offer another dual channel temperature controlled DAC which may enable this hybrid LDMOS / Gan mode control please ?