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The unused side of the bridge (as drawn, that would be R5-R6) only affects the gain to the extent that it adds a little more current to the load resistor. It does not affect the closed loop gain of the op amp.A quick question.
Wont the unused Resistors come in parallel with the ones utilised when the mux switches one way?
I hope you get what i mean
Where are you from?Hi and thanks a lot Ron
i have sent the board for designing.Lets hope everything works out fine.
Off topic a bit..What does your avatar pic mean?
On the CD4053, what voltages are you using for VDD (pin 16), VSS (pin 8), and VEE (pin 7)?
You need to show polarities of measured voltages. VCAL should be negative.
This is built on a PC board.I haven't brought my Digital camera with me and my phones camera is a meagre 1MP.I will post the Artwork and the layout some time later in the day.Looking at U4 as an example, you have something wrong with either the op amp, grounding, or your measurement equipment/technique. Is this built on a PC board? Do you have a ground plane? Can you post a photo of the circuit board?