500_nW_x_10_amplifier

Published:2009/7/24 3:28:00 Author:Jessie | From:SeekIC

This circuit has a quiescent power dissipation of 470 nW, with a slew rate of 1 V/ms for a 0.05-μA set current. The 3-dB down (gain of -7.07) frequency for the circuit is about 300 Hz. Peak-to-peak output swing into a 100-kΩ load is 0.7 V or ±0.35 V peak. An increase in supply voltage to ±1.35 V (such as two mercury cells) increases the output swing by ±0.35 V to 1.4 V peak-to-peak. This increases the power dissipation to about 1 μW per cell, a power drain of 15 μW or less will not affect the shelf life of a mercury cell.



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