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What is a pseudobipolar signal? I read this word in the datasheet below:
http://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf
Can you show me an example with a plot please? Online I found only the definition of pseudo-differential unipolar and other definitions:
http://www.analog.com/media/en/technical-documentation/product-selector-card/2PB_sarinputtypesfb.pdf
Thank you in advance.
A Pseudo Bipolar signal is just a bipolar signal with a non-zero voltage at which the signal is considered to have zero magnitude. A "true" bipolar signal has 0V as the zero magnitude voltage.
Pseudo Bipolar allows you to use a positive reference voltage and voltage range at the ADC input and generate positive and negative output values, with respect to the reference voltage. This saves having to use a bipolar power supply.
You already have a plot of pseudo bipolar in your second reference. It is just named slightly differently. In this case, the zero magnitude voltage is 2.5V.
