초록 ▼

A supply-voltage detecting stage (11) that supplies first and second reference currents (IREFP and IREFN) which vary with the supply voltage (Vcc) and are coupled by first and second gain stages (12A and 12B), respectively, to first and second temperature-detecting stages (13A and 13B), respectively

A supply-voltage detecting stage (11) that supplies first and second reference currents (IREFP and IREFN) which vary with the supply voltage (Vcc) and are coupled by first and second gain stages (12A and 12B), respectively, to first and second temperature-detecting stages (13A and 13B), respectively. First and second temperature-detecting stages (13A and 13B) increase the coupled reference currents (IREFP and IREFN), respectively, to compensate for temperature increase through use temperature-sensitive, long-channel transistors (M34-M37 and M42-M45), supplying temperature and supply-voltage compensated output bias voltages at output terminals (MIRN and MIRP).

대표청구항 ▼

A temperature and supply-voltage sensing circuit for an integrated circuit, said sensing circuit comprising: a supply-voltage detecting stage connected to a supply voltage, said supply-voltage detecting stage supplying an initial reference current that varies with change in said supply voltage; a su

A temperature and supply-voltage sensing circuit for an integrated circuit, said sensing circuit comprising: a supply-voltage detecting stage connected to a supply voltage, said supply-voltage detecting stage supplying an initial reference current that varies with change in said supply voltage; a subcircuit for receiving said initial reference current and for providing a second reference current proportional to said initial reference current; and a temperature-detecting stage, said temperature-detecting stage coupled to receive said second reference current, said temperature-detecting stage converting said second reference current to a temperature and supply-voltage compensated bias voltage; wherein said temperature-detecting stage includes a long-channel transistor, said long-channel transistor having a resistance sensitive to temperature change, said long-channel transistor connected to vary said compensated bias voltage in response to change in temperature.