Title :
A CMOS bandgap reference for differential signal processing
Author :
Nicollini, Germano ; Senderowicz, Daniel
Author_Institution :
ST Microelectron. SpA, Agrate Brianza, Italy
fDate :
1/1/1991 12:00:00 AM
Abstract :
A switched-capacitor fully differential bandgap reference that uses a standard double-poly CMOS process is presented. It generates a differential reference voltage of 6.2 V with a standard deviation of about 24 mV and a typical temperature stability of 15.2 p.p.m./°C over an extended temperature range from -40 to +85°C. These performance results are obtained without using any trimming in mass production. The bandgap reference only occupies 730 mil2 and dissipates 4.8 mW at±5-V power supplies. A measured power supply rejection of about 90 dB until 500 kHz is the best ever reported at high frequency
Keywords :
CMOS integrated circuits; reference circuits; signal processing equipment; switched capacitor networks; -40 to 85 degC; 6.2 V; CMOS bandgap reference; differential reference voltage; differential signal processing; mass production; standard double-poly CMOS process; switched capacitor network; CMOS process; Frequency measurement; Mass production; Photonic band gap; Power measurement; Power supplies; Signal processing; Stability; Temperature distribution; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
