OPA2325: Does there have an diode between IN+ & IN- of OPA2335

Yang Wu

Part Number: OPA2325
Other Parts Discussed in Thread: OPA4171

Hi team,

In the DS of OPA2325,it says The OPAx325 incorporate internal electrostatic discharge (ESD) protection circuits on all pins. In the case of input and output pins, this protection primarily consists of current-steering diodes connected between the input and power-supply pins.

Does there have an diode between IN+ & IN-? I see some amps such as OPA4171 also have a diode between IN+ & IN-.

thanks a lot.

Best regards,

Yang

over 1 year ago

0 Marek Lis over 1 year ago

TI__Guru 61340 points

All analog IC's I/O pins include reverse-biased current-steering diodes connected between the pin and both power-supply pins. Additionally, some high voltage CMOS op amp like OPA4171 have back-to-back input protection diodes between the input terminals - see below.