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
|Thread starter||Similar threads||Forum||Replies||Date|
|Can 2 diodes and a capacitor be used to generate a negative voltage?||General Electronics Chat||5|
|N||Get Positive and Negative Voltage from Single Power Supply||Power Electronics||10|
|How to build a inverter similar circuit with MOSFETS which involves negative output voltage?||Analog & Mixed-Signal Design||2|
|M||What is the voltage at the negative terminal of a battery?||Power Electronics||14|
|battery DC/DC negative voltage powering op-amps||Power Electronics||0|
|Can 2 diodes and a capacitor be used to generate a negative voltage?|
|Get Positive and Negative Voltage from Single Power Supply|
|How to build a inverter similar circuit with MOSFETS which involves negative output voltage?|
|What is the voltage at the negative terminal of a battery?|
|battery DC/DC negative voltage powering op-amps|
by Aaron Carman
by Aaron Carman
by Jake Hertz