IEEE Solid-State Circuits Letters · 2022 · 11 citations · 7 references
EngineeringElectrical EngineeringAnalog ElectronicsLow-power DesignMicroelectronicsAnalog Integrated CircuitsAnalog IntegrationCmos Circuit DesignLow-power Digital Circuit DesignMixed-signal Integrated Circuit DesignAnalog Readout CircuitsAnalog-to-digital Converter DesignAnalog-to-digital ConvertersCmos Analog Circuit DesignCmos Analog Integrated CircuitsLab-on-a-chip BiosensorsReadoutReadout Integrated Circuits
Many biosensors produce single-ended current outputs. Lab-on-chip applications demand parallel readout channels requiring low area current-to-digital converters. High HD2 has limited the Current Controlled Ring Oscillator’s adoption as a low area, single-ended converter. This work improves CCRO open loop linearity by 10 dB. A wide-bandwidth current buffer is also designed. A low area (0.0025 mm2), low power (357μW), single-ended, 1 MHz bandwidth converter suitable for array readout is presented with measured performance.
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Highly linear VCO for use in VCO‐ADCs
Amir Babaie-Fishani, Pieter Rombouts · Electronics Letters · 2016 · 81 citations · Full text
Fernando Cardes, Eric Gutierrez, Andrés Quintero et al. · IEEE Journal of Solid-State Circuits · 2018 · 59 citations