Second order temperature compensated band cap voltage reference

Details Second order temperature compensated band cap voltage reference Second order temperature compensated band cap voltage reference

1981-08-24

1984-04-17

Shoop, William M.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

307297, 323315, G05F 320

Patent

active

044437536

ABSTRACT:
A voltage reference circuit design which is temperature compensated to the second order is presented. The circuit comprises a sub-circuit for generating a bandgap voltage reference temperature compensated to the first order and a sub-circuit having a differential amplifier for generating a current having a second order temperature dependency. The current in turn is used for generating a correction voltage having a second order temperature dependency. The first order band gap voltage reference and the correction voltage are combined to provide the second order temperature compensated band gap voltage reference.

REFERENCES:
patent: 4064448 (1977-12-01), Eatock
patent: 4088941 (1978-05-01), Wheatley, Jr.
patent: 4249122 (1981-02-01), Widlar
patent: 4250445 (1981-02-01), Brokaw
patent: 4313083 (1982-01-01), Gilbert et al.
patent: 4325018 (1982-04-01), Schade, Jr.

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