An accurate current reference using temperature and process compensation current mirror

Yang, Byung‐Do; Shin, Young-Kyu; Lee, Jee-Sue; Lee, Yong-Kyu; Ryu, Koungmin

doi:10.1109/asscc.2009.5357223

Cited by 44 publications

(10 citation statements)

References 3 publications

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“…After the PTAT and CTAT currents are measured, the switch codes of the TPC-CM are fixed in order that the magnitude of reference current is independent to temperature. The area of the internal temperature sensor is 0.72 mm × 0.08 mm [14].…”

Section: Resultsmentioning

confidence: 99%

“…6 shows the block diagram of internal temperature sensor used in the experiment. An accurate current reference using temperature and process compensation current mirror (TPC-CM) is used [14]. The temperature independent reference current is generated by summing PTAT (proportional to absolute temperature) current and CTAT (complementary to absolute temperature) current.…”

Section: Resultsmentioning

confidence: 99%

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Implementation of Single-Wire Communication Protocol for 3D IC Thermal Management Systems using a Thin Film Thermoelectric Cooler

Kim¹,

Lee²,

Kim³

2012

JSTS:Journal of Semiconductor Technology and Science

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Abstract-We propose and implement a single-wire communication protocol for thermal management systems using thin film thermoelectric modules for 3D IC cooling. The proposed single-wire communication protocol connects the temperature sensors, located near hot spots, to measure the local temperature of the chip. A unique ID number identifying the location of each hot spot is assigned to each temperature sensor. The prototype chip was fabricated by a 0.13 μm CMOS MPW process, and the operation of the chip is verified.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Implementation of Single-Wire Communication Protocol for 3D IC Thermal Management Systems using a Thin Film Thermoelectric Cooler

Kim¹,

Lee²,

Kim³

2012

JSTS:Journal of Semiconductor Technology and Science

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“…One way to solve this problem is adding I PTAT and I CTAT current to compensate high-order term in current reference [9]. Ming-Dou Ker [10] reports utlizling the difference of temperature-dependent currents generated from the parasitic n-p-n and p-n-p bipolar junctions to obtain temperaure-independent current reference.…”

Section: Traditional Current Referencementioning

confidence: 99%

“…The error amplifier which consists of P 5 , P 6 , Q 11 , Q 12 and R 8 enforces collectors of Q 8 , Q 9 to have equal potential. The 2.5V Brokaw BVR is supplied by current source composed of P 7 and Q 10 .…”

Section: Proposed Circuit Architecturementioning

confidence: 99%

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High Precision Low Temperature Coefficient Current Reference with Resistor Compensation

Xin¹,

Luo²

2012

Proceedings of the 2nd International Conference on Computer Application and System Modeling

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Abstract-In order to improve temperature characteristics and precision of current reference, a novel resistor compensated current reference based on bandgap voltage reference with trimming network is proposed in this paper. By introducing the combination of 2nd order resistor and transmission gate whose temperature characteristics compensate that of bandgap voltage reference, lower temperature coefficient has been achieved. This circuit is implemented using HHNEC 0.35um BCD process with 3.3V power supply. Simulation results for the proposed current reference show the worst temperature coefficient of 15.25ppm/°C and the best temperature coefficient of 5ppm/°C over a temperature range from -45°C to 85°C. With trimming network, an output current variation of 1.4‰ is achieved among process corners. On the premise of not introducing high-order curvature compensated to bandgap which increase circuit complexity, this circuit put forward a new thought for the design of current reference.

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Design of a nanopower current reference with reduced process variability

Cucchi

Pascoli

Iannaccone

2013

Analog Integr Circ Sig Process

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In this paper we present the design of a 0.18 mum CMOS current reference based on a variability-aware approach, in such a way to obtain a very low process sensitivity of the reference current. Its relative standard deviation is 1.4 % based on measurements performed over 23 samples from a single batch. The requirement of low process sensitivity is met together with the very low power consumption of 290 nW, at the cost of a large area occupation of 0.245 mm(2). Key to obtain this result are the use of the "classical" bipolar bandgap topology, which can be optimized for low-power/low-spread operation so as to outperform MOS-based bandgap circuits, and the use of devices that are intrinsically more stable towards process, such as diffusion resistors

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An accurate current reference using temperature and process compensation current mirror

Cited by 44 publications

References 3 publications

Implementation of Single-Wire Communication Protocol for 3D IC Thermal Management Systems using a Thin Film Thermoelectric Cooler

Implementation of Single-Wire Communication Protocol for 3D IC Thermal Management Systems using a Thin Film Thermoelectric Cooler

High Precision Low Temperature Coefficient Current Reference with Resistor Compensation

Design of a nanopower current reference with reduced process variability

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