Title :
A current mode CMOS voltage reference
Author :
Stair, Richard ; Connelly, J.A. ; Pulkin, Mark
Author_Institution :
Texas Instrum. Inc., Dallas, TX, USA
Abstract :
A current mode CMOS voltage reference uses a p-channel MOSFET threshold voltage extractor circuit to create a current that is inversely proportional to temperature. This current is summed with a current that is proportional to temperature into a resistor to create a voltage that is, to the first order, temperature independent. The output voltage is scalable by adjusting the size of the summing resistor. The circuit operates over temperature from 0 to 100°C with a power supply voltage between 3.3 and 7 V. Experimental results show that over these conditions, the output voltage varies by ±3%
Keywords :
CMOS analogue integrated circuits; current-mode circuits; integrated circuit design; reference circuits; 0 to 100 C; 3.3 to 7 V; CMOS voltage reference; PMOSFET threshold voltage extractor circuit; current mode voltage reference; p-channel MOSFET; scalable output voltage; summing resistor; Bipolar transistors; CMOS technology; Circuit topology; FETs; Instruments; MOSFET circuits; Photonic band gap; Resistors; Temperature; Threshold voltage;
Conference_Titel :
Mixed-Signal Design, 2000. SSMSD. 2000 Southwest Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5975-5
DOI :
10.1109/SSMSD.2000.836439
