REFERENCE VOLTAGE SOURCE WITH TEMPERATURE-COMPENSATED OUTPUT REFERENCE VOLTAGE

摘要

A reference voltage source (RFS) with linear temperature compensation for use in a band gap voltage reference circuit. The reference voltage source (RFS) comprises a voltage follower (VF) comprising a differential pair (DF). The voltage follower (VF) is arranged in cascade with a reference circuit (RFCT) for supplying a compensation voltage (VCMP) in series with a temperature dependent reference voltage (VRFT) of the reference circuit (RFCT). The voltage follower (VF) delivers a temperature independent output voltage (VOUT) between the output (OUT) of the voltage follower (VF) and a reference terminal (GND).