Back to Search
Start Over
A 0.55-V, 28-ppm/°C, 83-nW CMOS Sub-BGR With UltraLow Power Curvature Compensation.
- Source :
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers; Jan2018, Vol. 65 Issue 1, p95-106, 12p
- Publication Year :
- 2018
-
Abstract
- This paper proposes an ultralow power, high precision sub bandgap voltage reference (sub-BGR) for low-voltage self-powered devices. A novel ultralow power curvature compensation circuit is proposed to improve the temperature coefficient over a wide temperature range. A switch capacitor voltage divider with improved leakage current reduction switches is used to obtain a high accuracy and a low power. To minimize the clock feedthrough and charge injection in the switches, a clock scaling down circuit is proposed, that effectively improves the line sensitivity (LS) of the sub-BGR. The proposed sub-BGR is implemented in a 0.18- \mu \textm standard CMOS process with a total area of 0.061 mm2. After measuring 30 chips, the average power consumption is 83 nW at 0.55 V of supply at 27 °C. In the supply voltage range of 0.55 to 1 V, the LS is 0.059%/V, and the error is ±0.75% ( $3\sigma $ ) after trimming. [ABSTRACT FROM PUBLISHER]
- Subjects :
- CMOS memory circuits
THRESHOLD voltage
CAPACITORS
Subjects
Details
- Language :
- English
- ISSN :
- 15498328
- Volume :
- 65
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers
- Publication Type :
- Periodical
- Accession number :
- 127252285
- Full Text :
- https://doi.org/10.1109/TCSI.2017.2711923