good IC for making single ended into differential and vica verca

[Yannick]

I am looking for the most common used IC to make sigle ended signals
differential and vica verca, bandwidth is low (max 200Khz) and signal
levels are between 0-5V, i have both analog and digital I/O. I have
about 10 IO (5 analog and 5 digital) maybe there are some good IC's
with multiple IO for this purpose?

This is for a telemetry system on my kart , to have less influence of
the EMI (of the spark plug) i want to make all out and ingoing signals
differential.

Thanks for any help on this one.

Yannick

 

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quad pack RS422 drivers/receivers for digital

 

[Pooh Bear]

I am looking for the most common used IC to make sigle ended signals
differential and vica verca, bandwidth is low (max 200Khz) and signal
levels are between 0-5V, i have both analog and digital I/O. I have
about 10 IO (5 analog and 5 digital) maybe there are some good IC's
with multiple IO for this purpose?

This is for a telemetry system on my kart , to have less influence of
the EMI (of the spark plug) i want to make all out and ingoing signals
differential.

Thanks for any help on this one.

For analog signals you may do best by adopting a method using several
op-amps, rather than look for 'an IC'.

Graham

 

[Luhan]

I am looking for the most common used IC to make sigle ended signals
differential and vica verca,

This is for a telemetry system on my kart , to have less influence of
the EMI (of the spark plug) i want to make all out and ingoing signals
differential.

You may have luck with the (optocoupler) system used by MIDI, as data
system that survives (ab)use by Rock Bands.

Luhan

 

[John B]

Yannick scrobe on the papyrus:

I am looking for the most common used IC to make sigle ended signals
differential and vica verca,

This is for a telemetry system on my kart , to have less influence
of the EMI (of the spark plug) i want to make all out and ingoing
signals differential.

It depends on whether you want to use two-wire (half-duplex RS485) or
four-wire (full-duplex RS422) comms. MAX485 is only good for RS485, but
MAX489 will do both. Four-wire is easier in software.

 

[colin]

I am looking for the most common used IC to make sigle ended signals
differential and vica verca, bandwidth is low (max 200Khz) and signal
levels are between 0-5V, i have both analog and digital I/O. I have
about 10 IO (5 analog and 5 digital) maybe there are some good IC's
with multiple IO for this purpose?

This is for a telemetry system on my kart , to have less influence of
the EMI (of the spark plug) i want to make all out and ingoing signals
differential.

Hi,
Have you considered using opto isolators at least for the digital ?
Im not sure about using them for analogue, it depends on your requirments as
thier transfer charecteristic varies tremendously from device to device for
cheap units, and also very gradualy over time (you cld always get round this
by using a simple pwm) but the complete isolation would give best imunity
from noise, transients on the ground, ESD etc. or if want to digitise the
analogue you could do it at the source with a micro.

A 'single transistor phase splitter' can be used to generate differential
signals or just a simple unity gain inverter.
A single op amp used as a diferential amplifier can provide a reasonable
amount of CMRR.

Colin =^.^=