I am working on using an OP37g amplifier in a transimpedance amplifier configuration. I have the pspice model for this device, but I need to be able to get the open loop transfer function for the device. The mathematical pole-zero transfer function would be ideal. If there is a way other than trial and error (which has been unsuccessful so far) or if this is published information that I haven't been able to locate, please let me know. Thanks in advance for any help here.