[sdiy] SSM2164 last time buys

David G. Dixon dixon at interchange.ubc.ca
Wed Mar 2 02:34:01 CET 2011


> This works!, I just breadboard it with a lmm334 that I had. The device
> provides 10mA. Will be more adequate something as 20mA but for the tests
> but was OK.
...<snip>

This is excellent, Oscar!  (How many expensive SSM2164 chips have you
sacrificed for these experiments?  We should take up a collection!)

So, am I correct in assuming that you put the LM334 current source inbetween
the 2164 and the positive supply, but connected the negative supply and
ground pins normally?

It seems that a simple resistor would be perfectly adequate in this
application, since the 2164 has internal current sources being driven from
the positive rail, according to the schematic in Figure 23 of the datasheet.




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