Dear Sir/Madam,
I want to expand the drive voltage range to ±5V. But no current pin drver IC suit for this.
Is that possible to build a pin driver circuit by choosing “Analog Multiplexer” and “Amplifier” and "DAC".
Output level want to be ±5V, and drive frequency up to 60MHz.
Thanks a lot
Hi Laofuzi,
To understand your question better: For example, MAX9979 can do VDL to VDH levels of -2.5V to +7.5V. If I understand correctly: You're asking if there is any device within ADI portfolio that can do the VDL and VDH levels of -5V to +5V.
I suppose one could put together a fast level shift circuit to transpose the -2.5V to +7.5V range to -5V to +5V instead. I've shown this in the example circuit below where a high slew rate device is used to create the ~-5V to ~+5V output transitions.
Ideally, you'd want a very fast slew rate device with supply voltages that can accommodate the +/-5V output range. LT6553 is the one I found that has a model in LTspice (so I chose LT6553 - but you'd want something with a higher supply voltage range). So, the example simulation above is limited in voltage range because of LT6553's limiation.
Here is the simulation file if you'd like to work with it:
LT6553 PIN Driver 4_4_23.asc
If I've not answered your question properly, please let me know.
Regards,
Hooman
