On-chip pressure transducer and temperature compensation circuit

Details On-chip pressure transducer and temperature compensation circuit On-chip pressure transducer and temperature compensation circuit

1982-03-29

1984-08-14

Cohen, Lee S.

Surgery

Truss

Pad

128748, 128736, 73708, A61B 502

Patent

active

044650752

ABSTRACT:
An integrated circuit including a pressure transducer is disclosed for temperature compensating the output voltage thereof with respect to undesirable temperature induced signals from the pressure transducer. A resistor in series with the pressure transducer controls the span of the output voltage. A plurality of resistors in parallel with the pressure transducer serve as a voltage divider for adjusting the output voltage at zero for zero pressure. Silicon resistors serving as thermistors in the voltage divider may be added to the circuit by laser cutting shorting links for temperature compensating the offset.

REFERENCES:
patent: 2981911 (1961-04-01), Warnick
patent: 3077561 (1963-02-01), Revesz
patent: 3196375 (1965-07-01), Jones
patent: 3831588 (1974-08-01), Rindner
patent: 4264889 (1981-04-01), Yamamoto et al.
patent: 4320664 (1982-03-01), Rehn et al.
patent: 4333349 (1982-06-01), Mallon et al.

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