Hi,
cant remember name of chip as its at work, but im trying to activate a chip that requires +5v on the vcc and -5v on the inputs. I have 2 power supplies, but not sure how to wire it up as there is obviously only one ground pin on the chip. The inputs on the board go through a resistor to a processor chip that I have no control over, so have to try to put -5v without a external ground pin to work with.
Any way I could wire up an external resistor or something with the input pins to get the -5v or any other idea's?
Thanks.
cant remember name of chip as its at work, but im trying to activate a chip that requires +5v on the vcc and -5v on the inputs. I have 2 power supplies, but not sure how to wire it up as there is obviously only one ground pin on the chip. The inputs on the board go through a resistor to a processor chip that I have no control over, so have to try to put -5v without a external ground pin to work with.
Any way I could wire up an external resistor or something with the input pins to get the -5v or any other idea's?
Thanks.