[sdiy] MC1495 multiplier chip discontinued completely

[Jay Schwichtenberg]

I'd check the specs first. I've used several of their chips before and in no
cases have they meet the specs of the original part. They are pretty close
but not exact and in most cases will work just fine.

Jay

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Grant Richter
> Sent: Thursday, April 24, 2003 1:01 PM
> To: music.maker at gte.net; synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] MC1495 multiplier chip discontinued completely
>
>
> Raytheon started the RC4200, now second sourced by Japan Radio Corporation
> (JRC). Part number NJM4200. People are confused by the low price (last
> quoted as $0.68 per 1000). It requires more external support than a AD633,
> but the specifications are 10X better.
>
> It is a single quadrant sum of logs multiplier which has to be offset for
> bipolar operation.
>
> Linearity is 0.1% and DC drift is 0.005% per deg C due to internal
> monolithic construction. Very clean and pure sounding.
>