A CMOS digitally programmable OTA based instrumentation amplifier for EEG detection system

Mahmoud, Soliman A.; Alhammadi, Aisha A.

doi:10.1109/icecs.2015.7440374

Cited by 10 publications

(1 citation statement)

References 16 publications

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“…The voltage level shifter consists of the M 2 and a current source (M I4b ). The shift voltage was expressed in (18), where I DS2 = I B2 . The bias voltages for both the current sources (M I3b , M I4b ) and the reference voltage (V REF ) are generated from the IP core cell.…”

Section: Circuit Design On the Transistor Levelmentioning

confidence: 99%

An Active Resistor With a Lower Sensitivity to Process Variations, and its Application in Current Reference

et al. 2020

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A novel active resistor circuit offering less sensitivity to process and temperature variations without any extra trimming is proposed. The circuit consists of two accurately matched, high resistance polysilicon (hripoly) resistors and a voltage-controlled MOS resistor, and it is designed for the industrial temperature range (-20 • C to 85 • C) in the TSMC 180 nm general-purpose process. The actual performance of the circuit is analyzed by using the Corner and Monte Carlo analyses that comprise two thousand samples for the global and local process variations. The maximum error in the resistor value is ±6.2 %, with the standard deviation of σ = 1.2 %. The proposed active resistor reduces the maximum error from ±15 % to ±6.2 % when the both the process and the temperature variations are considered without trimming. As an application, a transconductor and a current reference based on the novel active resistor are introduced, and their accuracy-related performance is studied.

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Section: Circuit Design On the Transistor Levelmentioning

confidence: 99%