Fast startup CMOS current references

Mandal, Soumyajit; Arfin, Scott K.; Sarpeshkar, Rahul

doi:10.1109/iscas.2006.1693217

Cited by 46 publications

(19 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the Monte Carlo simulation (process and mismatch variations, 1000 runs), the average value of the biasing current is 10.26 nA and the standard deviation is 0.98 nA. The start-up circuit does not consume any static power [17]. The voltage reference, proposed in [18], is adopted since it provides a very good performance at low power levels.…”

Section: A Current and Voltage Referencesmentioning

confidence: 99%

A Dual-Output Thermoelectric Energy Harvesting Interface With 86.6% Peak Efficiency at 30 <inline-formula> <tex-math notation="LaTeX">$\mu {\text {W}}$ </tex-math> </inline-formula> and Total Control Power of 160 nW

Katic

Rodriguez

Rusu

2016

IEEE J. Solid-State Circuits

View full text Add to dashboard Cite

Section: A Current and Voltage Referencesmentioning

confidence: 99%

A Dual-Output Thermoelectric Energy Harvesting Interface With 86.6% Peak Efficiency at 30 <inline-formula> <tex-math notation="LaTeX">$\mu {\text {W}}$ </tex-math> </inline-formula> and Total Control Power of 160 nW

Katic

Rodriguez

Rusu

2016

IEEE J. Solid-State Circuits

View full text Add to dashboard Cite

“…These circuits include a fast startup current reference for the amplifiers based on [14], a diode ladder voltage reference to generate the common-mode voltage for the PGA, and a clock generator that provides the 2.0kHz non-overlapping clock signals for the V DC generator and the comparator.…”

Section: E Peripheral Circuitsmentioning

confidence: 99%

A 58 nW ECG ASIC With Motion-Tolerant Heartbeat Timing Extraction for Wearable Cardiovascular Monitoring

Sodini

2015

IEEE Trans. Biomed. Circuits Syst.

View full text Add to dashboard Cite

Abstract-An ASIC for wearable cardiovascular monitoring is implemented using a topology that takes advantage of the electrocardiogram's (ECG) waveform to replace the traditional ECG instrumentation amplifier, ADC, and signal processor with a single chip solution. The ASIC can extract heartbeat timings in the presence of baseline drift, muscle artifact, and signal clipping. The circuit can operate with ECGs ranging from the chest location to remote locations where the ECG magnitude is as low as 30µV . Besides heartbeat detection, a midpoint estimation method can accurately extract the ECG R-wave timing, enabling the calculations of heart rate variability. With 58nW of power consumption at 0.8V supply voltage and 0.76mm 2 of active die area in standard 0.18µm CMOS technology, the ECG ASIC is sufficiently low power and compact to be suitable for long term and wearable cardiovascular monitoring applications under stringent battery and size constraints.

show abstract

“…Transistors M11-M16 and resistors form a supply-independent bias current generator to provide a constant biasing current to the negative feedback network for the preregulator design. Meanwhile, for low-power design, the start-up circuitry adopts the capacitive-coupled start-up circuit [34]. It is formed by M17-M20, , and .…”

Section: B Regulator Output Voltagementioning

confidence: 99%

A Low Quiescent Biased Regulator With High PSR Dedicated to Micropower Sensor Circuits

Ong

Chan

2010

IEEE Sensors J.

View full text Add to dashboard Cite

A new micropower high power-supply-rejection (PSR) regulator, on the basis of op-amp-less architectural design, is presented in this paper. The proposed regulator is based on the embodiment of the Brokaw bandgap regulator circuit in an additional feedback control loop so as to achieve high efficiency in terms of referenced PSR bandwidth per current. The measured PSR performance without any filtering capacitor for a 50-k nominal resistive load at 1 kHz and 1 MHz are obtained as 76 and 43 dB, respectively. The regulator, making use of native driving devices to improve the headroom, supports the supply range from 2 to 3.3 V. The output voltage is close to 1.8 V, having an untrimmed temperature coefficient of 117 ppm C from 40 C to 125 C while drawing the quiescent current of only 5.65 A. The regulator occupies an area of 0.047 mm 2 using current source model 1.8 V/3.3 V CMOS 0.18 m triple-well process technology. The circuit is verified using the realistic BSIM3 models for simulation. Finally, the performance comparison with respect to the measured results of reported works, using technology normalized figure of merit, has validated that the proposed circuit technique offers good PSR results while having the advantages of low quiescent power, small size, and full integration without any off-chip capacitor. The proposed regulator is particularly suitable for micropower sensor circuits.Index Terms-Bandgap voltage regulator, low power, power supply rejection, voltage regulator.

show abstract

Fast startup CMOS current references

Cited by 46 publications

References 4 publications

A Dual-Output Thermoelectric Energy Harvesting Interface With 86.6% Peak Efficiency at 30 <inline-formula> <tex-math notation="LaTeX">$\mu {\text {W}}$ </tex-math> </inline-formula> and Total Control Power of 160 nW

A Dual-Output Thermoelectric Energy Harvesting Interface With 86.6% Peak Efficiency at 30 <inline-formula> <tex-math notation="LaTeX">$\mu {\text {W}}$ </tex-math> </inline-formula> and Total Control Power of 160 nW

A 58 nW ECG ASIC With Motion-Tolerant Heartbeat Timing Extraction for Wearable Cardiovascular Monitoring

A Low Quiescent Biased Regulator With High PSR Dedicated to Micropower Sensor Circuits

Contact Info

Product

Resources

About