Title :
A single-trim CMOS bandgap reference with a 3σ inaccuracy of ±0.15% from −40°C to 125°C
Author :
Guang Ge ; Cheng Zhang ; Hoogzaad, G. ; Makinwa, Kofi
Author_Institution :
NXP Semicond., Nijmegen, Netherlands
Abstract :
A CMOS bandgap reference with a 3σ inaccuracy of ±0.15% from -40°C to 125°C is presented. This level of precision is achieved by a single PTAT trim at room temperature, together with the use of chopping and higher-order curvature correction to remove non-PTAT errors. The bandgap reference draws 55 μA from a 1.8 V supply, and occupies 0.12 mm2 in 0.14 μm CMOS.
Keywords :
CMOS integrated circuits; reference circuits; current 55 μA; higher-order curvature correction; nonPTAT errors; single-trim CMOS bandgap reference; size 0.14 μm; temperature -40 °C to 125 °C; voltage 1.8 V; Circuit noise; Feedback loop; Filters; Noise reduction; Photonic band gap; Resistors; Stability; Switches; Temperature dependence; Voltage;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-6033-5
DOI :
10.1109/ISSCC.2010.5434040
