[sdiy] Cheapest Matched Pair

[Peter Grenader]

harrybissell wrote:

>> There is the CA3046 array - about US$1.00, or less, a piece.
>> The differential pair in this is matched to within 5 milli volts, which is
>> looser than the 50 micro volt match for the LM394, but good enough for many
>> applications.


I was gonna mention these, too.  Great little units.  Used them a few times
on a few matched applications, they hum like a bee.

- P