![]() ![]() The device is turned off during sleep mode to cut-off the leakage path. ![]() Power Gating is one such well known technique where a sleep transistor is added between actual ground rail and circuit ground. The power reduction must be achieved without comprising performance which makes it hard to reduce leakage current during normal operation of mobile. The designers apart from leveling of leakage current to ensure correct circuit operation also focuses on minimization of power dissipation. For mobile applications, designers work within a limited leakage power specification in order to meet good battery life. The adder cells mainly focus on reduction of power and increasing of speed. ![]() Adder is the paramount circuit for many complex arithmetic operations. ![]()
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