amin5659
Member level 3
hi all.I've 2 question...
1.I wanna supply an Opamp with (+ -)5 v but unfortunately I've only a 5v usb voltage available.
how can i drive the opamp ???
2.I have also an 16bit adc on this design
for 2.5 volt reference I have used ADR421 bandgap voltage refrence.
my problem is with analog input which is 5 v and i have to supply it with usb voltage.
how can i handle this with lowest noise possible?(filtering or usnig LDO or any way you think :razz
1.I wanna supply an Opamp with (+ -)5 v but unfortunately I've only a 5v usb voltage available.
how can i drive the opamp ???
2.I have also an 16bit adc on this design
for 2.5 volt reference I have used ADR421 bandgap voltage refrence.
my problem is with analog input which is 5 v and i have to supply it with usb voltage.
how can i handle this with lowest noise possible?(filtering or usnig LDO or any way you think :razz