Proceedings ArticleDOI
A Sub-Leakage PW-Power HZ-Range Relaxation Oscillator Operating with 0.3V-1.8V Unregulated Supply
Orazio Aiello,Paolo Stefano Crovetti,Massimo Alioto +2 more
- Vol. 1, pp 119-120
TLDR
A pW-power versatile relaxation oscillator operating from sub-threshold to nominal voltage and low sensitivity of frequency/absorbed current to the supply allow the suppression of the voltage regulator, and direct powering from harvesters or 1.2-1.5V batteries.Abstract:
A pW-power versatile relaxation oscillator operating from sub-threshold (0.3V) to nominal voltage (1.8V) is presented, having Hz-range frequency under sub-pF capacitor. The wide voltage and low sensitivity of frequency/absorbed current to the supply allow the suppression of the voltage regulator, and direct powering from harvesters (e.g., solar cell, thermal from machines) or 1.2-1.5V batteries. A 180nm testchip exhibits a frequency of 4 Hz, 10%/V supply sensitivity at 0.3-1.8V, 8-18pA current, 4%/°C thermal drift from −20°C to 40°C.read more
Citations
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Journal ArticleDOI
A pW-Power Hz-Range Oscillator Operating With a 0.3–1.8-V Unregulated Supply
TL;DR: The proposed pW-power relaxation oscillator operates over a wide supply voltage range from nominal down to deep sub-threshold and requires only a sub-pF capacitor for Hz-range output frequency and is the only one able to operate from sub-Threshold to nominal voltage.
Proceedings ArticleDOI
A 300mV-Supply Standard-Cell-Based OTA with Digital PWM Offset Calibration
TL;DR: This paper introduces a fully digital pulse-width-modulation (PWM) based calibration technique intended to dynamically compensate the input offset voltage due to process and mismatch in Ultra Low Voltage (ULV) Digital-Based Operational Transconductance Amplifiers (DB-OTA).
Proceedings ArticleDOI
Wake-Up Oscillators with pW Power Consumption in Dynamic Leakage Suppression Logic
TL;DR: The proposed circuits are based on standard cells utilizing the Dynamic Leakage Suppression logic style, and exhibit low supply voltage sensitivity over a wide supply voltage range, which enables direct powering from energy harvesters or batteries through their whole discharge cycle, suppressing the need for voltage regulation.
Journal ArticleDOI
A 1.9 nW, Sub-1 V, 542 pA/V Linear Bulk-Driven OTA with 154 dB CMRR for Bio-Sensing Applications
TL;DR: In this paper, a new technique for improvement on the DC voltage gain, while keeping the high-linearity in symmetrical operational transconductance amplifier (OTA) bulk-driven (BD) topology is proposed.
Journal ArticleDOI
Low-Voltage, Low-Area, nW-Power CMOS Digital-Based Biosignal Amplifier
TL;DR: In this article , the authors present the operation principle and the silicon characterization of a power efficient ultra-low voltage and ultra low area fully-differential, digital-based Operational Transconductance Amplifier (OTA), suitable for micro-scale biosensing applications.