Frank Stellmach wrote:
Dave,
well the schematic is the same as in the LT specification.
My PCB is a prototype, and I would not like to publish it, because it
contains several bugs.
One one those bugs led to the first change of the initial LT
specification, i.e. I discovered the parasitic diode in parallel to
the heater, by reversing the polarity.
I did not put any taobao.. link anyywhere, so I don't know what you
mean, sorry.
Frank
The datasheet heater circuit for the negative reference is still
inconsistent with the block digram given on the datasheet in that the
parasitic diode in parallel with the heater is formward biased.
Bruce
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