Taiwan Semiconductor Manufacturing Comp. Ltd.

Yen-Ting Wang

Alexander Kalnitsky

Alan S Roth

Eric Soenen

Hsin-Li Cheng

Liang-Tai Kuo

Voltage reference circuits are provided. A voltage reference circuit includes a transistor, a flipped-gate transistor, a first current mirror unit, a second current mirror unit, and an output note. A gate and a drain of the flipped-gate transistor are coupled to a gate and a drain of the transistor. A bulk and a source of the flipped-gate transistor are coupled to a ground. The first current mirror unit is configured to provide a first current to the flipped-gate transistor and a mirroring current in response to a bias current. The second current mirror unit is configured to drain a second current from the first transistor in response to the mirroring current. The output node is coupled to a source of the transistor and the second current mirror unit, and configured to output a reference voltage. Size of the flipped-gate transistor is less than that of the first transistor.

Voltage reference circuit and method for providing reference voltage

Voltage reference circuits are provided. A voltage reference circuit includes a first transistor, a flipped-gate transistor, a first current mirror unit, a second current mirror unit, and an output note. The first transistor is formed by a plurality of second transistors. A gate and a drain of the flipped-gate transistor are coupled to a gate and a drain of each second transistor. The first current mirror unit is configured to provide a first current to the flipped-gate transistor and a mirroring current in response to a bias current. The second current mirror unit is configured to drain a second current from the first transistor in response to the mirroring current. The output node is coupled to a source of each second transistor and the second current mirror unit, and configured to output a reference voltage. Size of the flipped-gate transistor is less than that of the first transistor.

Voltage reference circuits are provided. A voltage reference circuit includes a transistor, a flipped-gate transistor, a first current mirror unit, a second current mirror unit and an output node. The gate and the drain of the flipped-gate transistor are coupled to the gate and the drain of the transistor. The first current mirror unit is configured to provide a first current to the flipped-gate transistor and the mirroring current in response to a bias current. The second current mirror unit is configured to drain a second current from the transistor in response to the mirroring current. The output node is coupled to the source of the transistor and the second current mirror unit, and is configured to output a reference voltage.

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Round Rock, TX, United States of America

Yen-Ting Wang