AD7875 is 12-Bit 100 kHz, Sampling ADC with Uni 5V Input. I was wondering if there was a similar ADC that can take an input of 0 to
I called analog and they dont seem to have anything. Any suggestions about other manufacturers. I skimmed through TI, Maxim, Linear websites but it will be very helpful if someone can suggest something off the top of their head. Thanks
I'm afraid that since ADCs are supposed to interface analog quantities to digital systems and most digital systems are either TTL or mostly CMOS, most modern ADCs do not have references much larger than 5V. Why don't you use a precision voltage divider circuit to achieve what you want ? I mean halve the voltage you want to measure by dividing it with a voltage divider and then measure it on an ADC with a 5V reference.
I use TI's tlc3578, which does +-10V input. This particular one is 14 bit, 200 ks, but there are others in the family.
HTH Paul Probert
Actually I am doing exactly that right now. I am using INA105KU to halve the voltage like you said and then feeding it to AD7875. Thanks for your response....
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