Other Parts Discussed in Thread: OPA836, , OPA837, THS4551, OPA838, THS4541, OPA855, THS4303, OPA211
I'm investigating the options for a cryogenic (~50K) DC-10MHz LNA design. The source is low impedance (2 Ohm typical at 30K) but does not like bias currents exceeding 5uA.
I know that TI does not specify it's parts at low temperatures, but there are reports about successful use of LMH6629 and OPA836 below 77K in the scientific literature. Both are based on a SiGe process as far as I understand. I do not mind testing a few parts myself, but can not find much information on which other parts are based on a same processes. I would also be interested in FDAs if any are available. Could you please provide some hints?