Low-voltage nanopower clock generator for RFID applications

The design of an on-chip RC-based oscillator, implemented in a standard [email protected] BiCMOS process, without any external component, is presented. The proposed oscillator provides a clock signal at a frequency of 50kHz with a temperature coefficient smaller than 0.3%/^@?C over a temperature range from 0 to 80^@?C, without any external trimming. The proposed oscillator operates with a supply voltage of 0.8V and has a power consumption of [email protected] at room temperature. The chip area is 0.24mm^2.

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