O2 sensor pullup resistor values?

[Ludis Langens]

rr wrote:
> 
> Check nat-semi.com for the LM1964. It is the O2 Sensor interface
> amplifier designed for this purpose. At least the purpose of interfacing
> the O2 into additional electronics.

It's now known as the LM9044.  The data sheet contains a schematic
diagram of what's in the chip.

Bernd Felsche wrote:
> 
> Probably on the output of the buffer amplifier, internal to the box.
> The sensor's output voltage rises from 0V when it heats up; that
> transition may be used to switch off the bias.

There is no bias on the output, nor is there a bias that gets switched off.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/

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