M
MM
- Jan 1, 1970
- 0
Hi all,
I have a circuit where a LT1719 comparator is driven by a secondary of an RF
transformer. The central tap of the transformer is biased to +2.5V. The
comparator is powered from a single +5V supply. The purpose of the circuit
is to square up the input sine wave (at about 50 MHz). Is there anything
wrong with this approach?
The circuit used to work fine but with the recent batch of the parts I
observe the output slew rate being much below the comparator spec especially
when even slightly heated. The shape of the output pulse is also distorted,
there is sort of a step on the rising edge....
Thanks,
/Mikhail
I have a circuit where a LT1719 comparator is driven by a secondary of an RF
transformer. The central tap of the transformer is biased to +2.5V. The
comparator is powered from a single +5V supply. The purpose of the circuit
is to square up the input sine wave (at about 50 MHz). Is there anything
wrong with this approach?
The circuit used to work fine but with the recent batch of the parts I
observe the output slew rate being much below the comparator spec especially
when even slightly heated. The shape of the output pulse is also distorted,
there is sort of a step on the rising edge....
Thanks,
/Mikhail