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A 1.08-nW/kHz 13.2-ppm/°C Self-Biased Timer Using Temperature-Insensitive Resistive Current.
- Source :
- IEEE Journal of Solid-State Circuits; Aug2018, Vol. 53 Issue 8, p2311-2318, 8p
- Publication Year :
- 2018
-
Abstract
- This paper proposes a 32.7 kHz self-biased wake-up timer using temperature-insensitive resistive current. A dual-loop structure with supply-regulation loop and frequency-locked loop determines the regulated voltages at both ends of a temperature-compensated resistor and cancels out the amplifier offset voltages, thus generating temperature-insensitive resistive current for the switched capacitor. Moreover, a self-biasing scheme in low-power design reduces the power variation across the temperature range and eliminates the necessity of a sub- $\mu \text{A}$ reference current generator. The proposed timer with its start-up circuit generates <12 ms lock time, which is 20 times less than what obtained without a start-up circuit, and exhibits a long-term frequency stability of 10 ppm and a temperature coefficient of 13.2 ppm/°C with an energy efficiency of 1.08 nW/kHz. [ABSTRACT FROM AUTHOR]
- Subjects :
- TEMPERATURE
POWER resources
ELECTRIC potential
ELECTRONIC amplifiers
CAPACITORS
Subjects
Details
- Language :
- English
- ISSN :
- 00189200
- Volume :
- 53
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- IEEE Journal of Solid-State Circuits
- Publication Type :
- Academic Journal
- Accession number :
- 130886486
- Full Text :
- https://doi.org/10.1109/JSSC.2018.2824307