[time-nuts] Need tiny 5MHz 10x amplifier

Poul-Henning Kamp phk at phk.freebsd.dk
Sat Nov 28 19:35:31 EST 2015

I need to convert a 5MHz 0.2Vpp AC coupled sine signal to a 3.3V
CMOS compatible logic signal.

The "default" comparator based circuit either requires a negative
supply or 4 resitors for biasing the input and setting the zero level.
(The hysteresis resistor is the same in both cases).

Since space is a bit tight, I've been trying to find something like
a "x10 self-biasing amplifier" but without luck.

Any good ideas ?

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

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