Sense circuit, memory circuit, negative-resistance circuit, schm

Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude

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327 51, 327568, G01R 1900

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active

055149863

ABSTRACT:
A sense circuit has input and output terminals coupled through resistances to two fixed potentials. The input potential is amplified and inverted to control the gate of a field-effect transistor coupled between the input and output terminals. Alternatively, a sense circuit has first and second input terminals, and first and second output terminals. The first input terminal is connected to the gate of a depletion-mode field-effect transistor coupled between the second input and output terminals. The second input terminal is connected to the gate of a depletion-mode field-effect transistor coupled between the first input and output terminals. The depletion-mode field-effect transistors may be replaced by negative-resistance circuits. These sense circuits can obtain large voltage outputs from small current inputs.

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Ramkumar, K. and Nagaj, K., "Novel Schmitt Trigger Based on Lambda Diode," Electronics Letters, vol. 20, No. 25/26 (Dec. 6, 1984) pp. 1059-1061.
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Seevinck, E. et al., "Current-Mode Techniques for High-Speed VLSI Circuits with Application to Current Sense Amplifier for CMOS SRAM'S," IEEE , vol. 26, No. 4 (Apr. 1991) pp. 525-536.

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