Balanced Modulator/multiplier

[Brian Howie]

Hello,

I'm looking for a modern replacement for the MC1496 Balanced
modulator/multiplier IC. I need a wider bandwidth than the original~ 40MHz;
preferably with a SPICE model. Maybe a suitable transistor array would do.

I know about the NA602/612 devices.

Regards

Brian
--
Brian Howie
BAE SYSTEMS Avionics Limited
Sensor Systems Division
Crewe Toll Phase II, 1st Floor,
Edinburgh EH5 2XS
Phone +44 (0)131 343 8769
FAX +44 (0)131 343 8941
Email [email protected]

 

[Tim Wescott]

Hello,

I'm looking for a modern replacement for the MC1496 Balanced
modulator/multiplier IC. I need a wider bandwidth than the original~ 40MHz;
preferably with a SPICE model. Maybe a suitable transistor array would do.

I know about the NA602/612 devices.

You didn't say what your application is; it would be helpful to know.

For true analog multiplication at insane frequencies go to the Analog
Devices web site (www.analog.com) and do a search for "multiplier" -- you'll
find lots. For high performance RF (up to 1GHz or so) where frequency
conversion is more important than exact analog multiplication the state of
the art seems to be diode-ring mixers (www.minicircuits.com). There are
also HF receiver circuits that use matched discrete rings of FET, but if you
have to ask how to do it you don't have time to figure it out.

 

[Brian Howie]

You didn't say what your application is; it would be helpful to know.

Voltage controlled amplifier for unipolar pulsed video. I need good control
voltage rejection. The control voltage change over a few microseconds.

For true analog multiplication at insane frequencies go to the Analog
Devices web site (www.analog.com) and do a search for "multiplier" -- you'll
find lots.

I'd seen these previously , the AD834 is the only one that would do. No
SPICE model. I've used the 1496 and made up Gilbert cells from dual
transistors for previous applications.

For high performance RF (up to 1GHz or so) where frequency

conversion is more important than exact analog multiplication the state of
the art seems to be diode-ring mixers (www.minicircuits.com). There are
also HF receiver circuits that use matched discrete rings of FET, but if you
have to ask how to do it you don't have time to figure it out.

I'm familier with these and the FET versions - I need the linearity.

Thanks

Brian