So I don't see that using the 'LS07 improves the rise time.
You don't need the -5V supply at all. The INA122 will work down to 2.2V total supply voltage and its common mode input voltage includes ground. So ditch the 79L05 and connect pin 4 of the INA122 to ground instead. See Fig 5 on the datasheet.
Voltage dividers can often slow down the rise time of the edge given the capacitance of the input. On the Ada wave shield their version 1 had voltage dividers but they changed to level translators for version 2
QuotePlease, can you explain why i need capacitors to inputTo lower the impedance of the voltage source to prevent oscillation of the regulator.Quote1.0mF will be ok?For those parts you linked to then yes. But only if the part is actually made by the same manufacturer who wrote the data sheet.
Please, can you explain why i need capacitors to input
1.0mF will be ok?
QuoteHow i can lower voltage to 3v3?First off, many but not all standard-size Arduino boards have a 3.3V v.reg on board. You can add your own on other boards, but the zener idea may work. Secondly, if you have an Arduino board that runs at 3.3V rather than 5V, you canprobably power it off a 5V regulator ok. However, you'll be running a bit close on loading with powering from a 78L05, which can deliver only 100-mA. Would be better to use a 7805 v.reg, ie 1 Amp device.Thirdly, if you have mixed systems of 5V and 3.3V, you will need level-shifters to interfacethe 23K256 to 5V I/O pins on an Arduino.[Edit: I meant to say you can probably supply 5V to the Vin pin of a 3.3V board to powerthe 3.3V v.reg on the board].
How i can lower voltage to 3v3?