--- Curtis Sakima <electronichobbyist@y...> wrote:
I saw on this group .... somebody wanted to know the
difference between the LM 3914 / 3915 / 3916 ?? I
accidentally erased that original email so I can't
recall what the original question was!!
[snip]
You're right ... that schematically, the LM39XX chip
ARE the same. The ONLY difference is the CALIBRATION.
The 3914 is a linear-ly calibrated device. It's
output changes one-per-volt (or per-amp or per ohm or
whatever)
[snip]
The 3916 is calibrated by dB's (like in audio/VU
metering etc). It's output changes
one-per-(audio)dB.
Curtis, that was me asking. Basically I was asking if
there was any benefit of one over the other. The original plan
was to drive a few (10-15) LEDs as a throttle position indicator by
using a linear slide pot to change the reference voltage. A few here
suggested the LM3916. In looking for the chip to purchase, it was
discontinued, but there were references to the 3914, and 3915 chips.
Now with your explanation, it seems the 3914, would be the chip to
use since I want to measure voltage?
Brian
