Mon May 26 00:50:30 EDT 2014

Darlington exp converter

Since monolithic darlington arrays are easier to find as compared to
single NPN arrays, it might be interesting to find out if they can be
used as an (approximate?) exp converter as well.

The ULN2001[2] might work, though I'm not sure what the point is of
the resistors nor if they would interfere..

According to H&H the resistors are there to turn off the transistors

[1] http://octopart.com/partsearch#!?q=darlington%20array
[2] http://datasheet.octopart.com/ULN2003D1013TR-STMicroelectronics-datasheet-165970.pdf