signal inverting anomaly in my circuit design

[robismyname]

Can any one help me understand why my signal is being inverted on the output of my circuit?

What I have is the following:

RS232 signal (10V level) transmitted via DB9 conector and cable. On the TX pin of the DB9 connector and cable there is a 5k ohm resistor because the transimpedance AMP (OPA 380) input is looking for current input range of -10ma to +10mA.

The output of the AMP shows the inverted version of the RS232 signal that I was generating from my source (Laptop) but at 5V which is ok.

What is not ok is why is my output signal from the amp inverted and how can I un-invert it? Can someone help me understand what is happening?

 

[chuckey]

From the TI data sheet (https://www.ti.com/lit/ds/symlink/opa380.pdf), the input is always inverted (put on the negative input). Can you not invert the siignal else where?
Frank

 

[crutschow]

One option is to use another inverter circuit to invert the signal back.

 

[robismyname]

From the TI data sheet (https://www.ti.com/lit/ds/symlink/opa380.pdf), the input is always inverted (put on the negative input). Can you not invert the siignal else where?
Frank

The circuit input goes to pin 2 (inverted). If I want the signal to be non-inverted is it as easy as moving the signal from pin 2 of the IC and placing the signal on pin 3 of the IC?

I attached a schematic of my circuit design