Other Parts Discussed in Thread: OPA991, TLV9151
hi, I have designed a howland current source using tlv9351. From the power rails of the opamp, the gnd pin is externally connected to the connector. When the gnd pin is removed, the IC starts to heat up and breaks down.
The troublesome part of the job is that when the gnd pin is removed, the opamp internally moves the V- pin to the V+ pin. How can I prevent this situation? . How can I set up a system that will disable the opamp and prevent it from burning when GND is removed.