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INA826: Seems we need a faster difference amplifier: input signal <200mV max but centered around mid point of 5V coming from a sensor. The signal needs to be stripped off the common mode & amplified by < 5 but is a complex waveform. Output will be bipolar though.
Can you suggest some we can look at again?
Also, does it need to be supplied with +V & -V for such low levels of input and output? Can we use LM7725 for creating -0.232V bias at Vss pin here as well?
thnx
Hi Robin,
TI has lots of faster INAs. Single supply is also possible, as well as the creation of negative bias by the help of LM7705. You should search for an INA which is output rail-to-rail and can work at 5V supply voltage, though.
Kai