| 摘要 |
<p>Compact gm-control circuits for CMOS rail-to-rail input stages operating in strong inversion are provided. The gm-control circuit makes the sum of the gate-source voltages of the complementary input transistors (M11-M14), and therefore the gm of the input stage constant. The compact gm-control circuits implement a floating voltage source (Vc) in the form of circuit elements (100, 102, 104) between the N and P-channel input stage transistors and the positive and negative supply rails of the operational amplifier.</p> |
