Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1982-07-12
1984-11-13
Anagnos, Larry N.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307468, 307297, 365104, 365196, 365208, 365226, H03K 5153, G11C 706
Patent
active
044828241
ABSTRACT:
A tracking ROM drive and sense circuit for use on a monolithic integrated circuit for driving a ROM, the ROM having a ROM input terminal and a ROM output terminal. The invention circuit comprises a sense amplifier having an input terminal coupled to the ROM output terminal and a drive circuit having an output terminal coupled to the ROM input terminal. The sense amplifier provides an output signal at a sense amplifier output terminal in response to a ROM output signal voltage at the sense amplifier input terminal as the ROM output signal penetrates a predetermined sense amplifier threshold voltage. The drive circuit has an amplifier that is essentially identical to the sense amplifier. The drive circuit provides a drive voltage to bias the midpoint of the ROM output signal voltage to track the threshold of the sense amplifier threshold in a sense amplifier threshold voltage, temperature dependent, voltage source dependent and process dependent, change accommodating relation. The drive circuit also includes a voltage divider network and an output driver FET.
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Heimeier et al., "Temperature-Compensated on Chip Power System", IBM Tech. Discl. Bull., vol. 25, No. 2, Jul. 1982, pp. 643-644.
Dobkin, "Monolithic Temperature Sensor", Electronic Engineering Times, p. 12, 2/25/74.
Cole, "Temperature Transducter is Monolithic", Electronics, p. 148, Oct. 16, 1975.
Anagnos Larry N.
Bertelson David R.
Hamann H. Fredrick
Kirk James F.
Rockwell International Corporation
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