[time-nuts] Achieving maximum performance when driving 5370A/B inputs

[Mike Feher]

The 0032 was an op-amp and the 0033 and 0063 a buffer. The 0063 was a high
power/higher slew-rate version. They were, and still are, great to use. I do
have some 0032s and 0033s. Never played with the 0063. 73 - Mike

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960



-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Bruce Griffiths
Sent: Saturday, February 27, 2010 9:56 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Achieving maximum performance when driving 5370A/B
inputs

Mike Feher wrote:
> In general, what about the old National "damn fast" and super damn fast"
> LH0032&  LH0033? I used to use a lot of those in my designs many years
ago.
> - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>    
The LH0032 was a fast FET input opamp.
I presume you meant the LH0033 and LH0063?

Their slew rate is adequate to ensure that the 5370A/B trigger jitter is 
insignificant.
However they need a negative supply as well as the positive supply when 
being driven by a 3.3V or 5V CMOS output.

Bruce


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