TY - GEN
T1 - All-CMOS subbandgap reference circuit operating at low supply voltage
AU - Yang, Yi
AU - Binkley, David M.
AU - Li, Lu
AU - Gu, Changzhan
AU - Li, Changzhi
PY - 2011
Y1 - 2011
N2 - This paper presents a CMOS subbandgap reference circuit operating at a low supply voltage. To support low-voltage operation, the subbandgap reference circuit uses nMOS transistors operating in weak inversion and a bulk-driven amplifier. Measurements of a chip fabricated in AMI 0.5 μm CMOS technology show that the subbandgap reference can operate with a 1 V supply voltage to produce a reference voltage of 337 mV with a temperature coefficient of 9.9 ppm/°C and a voltage coefficient of 290 ppm/V over the temperature range of 10 °C to 100 °C. Measurements of a chip fabricated in UMC 0.13 m CMOS technology indicate the capability of operation with a 0.4 V supply voltage.
AB - This paper presents a CMOS subbandgap reference circuit operating at a low supply voltage. To support low-voltage operation, the subbandgap reference circuit uses nMOS transistors operating in weak inversion and a bulk-driven amplifier. Measurements of a chip fabricated in AMI 0.5 μm CMOS technology show that the subbandgap reference can operate with a 1 V supply voltage to produce a reference voltage of 337 mV with a temperature coefficient of 9.9 ppm/°C and a voltage coefficient of 290 ppm/V over the temperature range of 10 °C to 100 °C. Measurements of a chip fabricated in UMC 0.13 m CMOS technology indicate the capability of operation with a 0.4 V supply voltage.
UR - http://www.scopus.com/inward/record.url?scp=79960852890&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2011.5937710
DO - 10.1109/ISCAS.2011.5937710
M3 - Conference contribution
AN - SCOPUS:79960852890
SN - 9781424494736
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 893
EP - 896
BT - 2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
T2 - 2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
Y2 - 15 May 2011 through 18 May 2011
ER -