Abstract
Temperature monitoring and regulation is a critical power/performance feature in microprocessors. Due to the multiplicity of hotspots, a large number of on-die sensors are utilized. This requires them to be highly compact, low energy and fast. A miniaturized current controlled oscillator (CCO) sensor is described for this application. It has an area of only 700 μ m2 in the 16-nm FinFET process, with an energy consumption of 0.25 nJ in a 6.9- μ s conversion. The inaccuracy is within ±1.5 °C peak-to-peak (p-p) over a 130 °C range, at a resolution of 0.32 °C. These characteristics make the circuit attractive for high-density thermal sensing.
Original language | English |
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Pages (from-to) | 248-252 |
Number of pages | 5 |
Journal | IEEE Transactions on Very Large Scale Integration (VLSI) Systems |
Volume | 30 |
Issue number | 2 |
DOIs | |
State | Published - 1 Feb 2022 |
Bibliographical note
Publisher Copyright:© 1993-2012 IEEE.
Keywords
- CMOS
- microprocessors
- ring oscillator
- thermal sensor