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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: Fast monostable with a transistor array
Date: Wed, 19 Jun 2024 20:17:41 +1000
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On 19/06/2024 1:28 am, john larkin wrote:
> On Tue, 18 Jun 2024 13:48:58 -0000 (UTC), piglet
> <erichpwagner@hotmail.com> wrote:
> 
>> john larkin <jl@650pot.com> wrote:
>>> On Tue, 18 Jun 2024 18:44:37 +1000, Bill Sloman <bill.sloman@ieee.org>
>>> wrote:
>>>
>>>> On 14/06/2024 1:20 am, Bill Sloman wrote:
>>>>> One option John Larjkin doesn't seem to have explored is using Renesas
>>>>> HFA3096 five transistor array as basis for his mononstable and level
>>>>> shifter.
>>>>>
>>>>> It offers three 8GHz NPN parts and two 5.5GHz PNP parts in a single array.
>>>>>
>>>>> https://www.renesas.com/us/en/document/dst/hfa3046-hfa3096-hfa3127-hfa3128-datasheet?r=494216
>>>>>
>>>>> Two of the NPN parts could make up my emitter-coupled monostable, and
>>>>> the two PNP parts could level shift the output.
>>>>>
>>>>> The Renesas website offers Spice models for both the NPN and the PNP
>>>>> transistors, which one could plug into an LTSpice simulation, at the
>>>>> cost of making it look too messy for the more sensitive designers to be
>>>>> able to look at.
>>>>
>>>> I've spent that last four days in hospital with Covid-19 of the colon -
>>>> dramatic when it started but tedious thereafter.
>>>>
>>>> This thread hasn't gone all that well. John Larkin has ignored the fact
>>>> that I was talking about just the 3096. There have been some sensible
>>>> comments, but I'm still too sick to try and provide any kind of summing
>>>> up of the sensible bits.
>>>>
>>>> -- 
>>>> Bill Sloman, Sydney
>>>
>>> OK, we can defer discussing your one-shot circuit until you feel
>>> better. I've had some medical adventures of my own.
>>
>> My sympathies to both of you, coincidentally I am just getting back on my
>> feet after an eight day common cold from hell (was not Covid)
> 
> I'm now wearing a 24-hour recording EKG thing. It's really no trouble
> at all. Pretty cool technology.

And they have been around for at least thirty years. My mother got stuck 
with being a guineau pig for one some thirty years ago.

> It's a pity that there is no low-drama equivalent for blood pressure
You do have to compress the upper arm.

-- 
Bill Sloman, Sydney



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