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IEEE Workshop on Microelectronics and Electron Devices (WMED) |
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IEEE Workshop on Microelectronics and Electron Devices (WMED) |
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Low Power, High Gain CMOS Op Amps K. Cahill and D. J. Comer Abstract: Operating MOS devices in the moderate or weak inversion regions in cascode differential stages can lead to many advantages over operation in the strong inversion region. High voltage gain and low current drain on the DC source are two significant advantages. This paper summarizes the development of MOS op amps using the composite cascode differential configuration. It also reports on a new configuration using the conventional cascode circuit to achieve differential stage voltage gains exceeding 300,000 V/V (110 dB). Op amps using this differential stage can have a source power dissipation as low as 5 ?W. |
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This workshop is receiving technical co-sponsorship support from the IEEE Electron Devices Society. |
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