Only if you need an RS-232 connection. I mention the chip because it was among the first to generate the ± power supply voltages required by RS-232 interfaces from a +5VDC source. IIRC the original chp produce ±9VDC at a couple of tens of milliamps.Thanks for the replies.
This will be a portable device so using two batteries will not be best option for my project.
I will be requiring the negative voltage for an operational amplifier supply. Will be MAX232 be good for this application?
Can't you use single-supply opamps?Actually I will be powering 5 op-amps which consumes around 2mA each.
For the supply I will most probably be using a 7.4V LiPo battery.
Many opamps are specifically designed to run from a single supply.Opamp needs positive as well as negative supply.
eg. 8 pin DIP 741 IC
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