Low Power Startup Circuits for Current Reference
Original Publication Date: 2002-May-10
Included in the Prior Art Database: 2002-May-10
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Three new startup circuits for current reference are proposed. Unlike conventional startup circuits, the proposed circuits completely turn off once the reference circuit is started and consumes no power in the normal operation of the reference circuits. The first two circuits operate with only power down signal while the third circuit has been implemented to work with both power down and VDD ramp up. The circuits are quite useful and economical in low power integrated circuit design. The proposed circuits can also be used in voltage reference as well and very low startup time can be achieved.