Patent ID: 11877864
Assignee: MEASUREMENT SPECIALTIES, INC.
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 16:
17. A pre-amplifier circuit for a pressure sensor system, the pre-amplifier circuit comprising:
a differential-output operational-amplifier;
a protection circuit comprising:
a first series of resistors coupled between a first node and an inverting input of the differential-output operational-amplifier; and
a second series of resistors coupled between a second node and a noninverting input of the differential-output operational-amplifier;

a third series of resistors coupled between a positive output of the differential-output operational-amplifier and the first node;
a fourth series of resistors coupled between a negative output of the differential-output operational-amplifier and the second node;
a first resistor coupled between the first node and ground; and
a second resistor coupled between the second node and ground.