[time-nuts] Need tiny 5MHz 10x amplifier
dk4xp at arcor.de
Sun Nov 29 03:41:28 EST 2015
Am 29.11.2015 um 01:35 schrieb Poul-Henning Kamp:
> 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 ?
SN65LVDS2DBVT or similar with 1k/100nF feedback from OUT to INV to get
50% duty cycle
if you want that. Available also with 100 Ohm input termination. SOT23-5.
< http://www.ti.com.cn/cn/lit/ds/symlink/sn65lvds1.pdf >
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