CMOS current mirror with enhanced input dynamic range

Wang, Hung-Yu; Jeang, Yuan-Long; Liu, Ying-Chuan; Huang, Yu-Wei

doi:10.1002/cta.617

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…It is clear that for any current value the cut‐off frequency is larger with fewer photodiodes connected (smaller

C_{P h o t o}

). Furthermore, for both cases, it is observed the proportional relation between the cut‐off frequency and the current generated by the photodiodes, which is expected due the influence of

g_{m X}

in Equation (1) and the fact that a larger

I_{D}

is related to a larger

g_{m X}

23,24 …”

Section: Resultsmentioning

confidence: 64%

“…1 and the fact that a larger 𝐼 𝐷 is related to a larger 𝑔 𝑚𝑋 . 23,24 Figure 10a shows a comparison between the measured and simulated frequency response of the chip. Simulations were performed using a SPICE level 49 model provided by the manufacturer.…”

Section: Characterization In the Frequency Domainmentioning

confidence: 99%

“…Furthermore, for both cases, it is observed the proportional relation between the cut-off frequency and the current generated by the photodiodes, which is expected due the influence of g mX in Equation ( 1) and the fact that a larger I D is related to a larger g mX . 23,24 Figure 10A shows a comparison between the measured and simulated frequency response of the chip. Simulations were performed using a SPICE level 49 model provided by the manufacturer.…”

Section: Characterization In the Frequency Domainmentioning

confidence: 99%

See 2 more Smart Citations

Self‐configuration system and frequency characterization of a programmable photodetector ASIC

Calarco

Córdoba

Mombello

et al. 2023

Circuit Theory & Apps

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In this work a self-configuration system and the frequency characterization for a fully integrated CMOS photodetector sensor is presented. The sensor is composed of pixels with programmable switches that allow each pixel to connect with its neighbors; in this way, an arbitrary detection pattern can be synthesized on it. The design was aimed to be part of an optical encoder based on a non-diffractive light beam, therefore, the purpose of the self-configuration routine is to find the center of the incident non-diffractive beam and then configure the detection pattern around it. The corresponding algorithm is implemented on a Zynq-7000 SoC allowing to automate the alignment of the beam with the detection pattern, without using micrometric positioning procedures. The frequency response of the analog front-end of the entire chip (the pixels and the amplification system) is addressed via SPICE simulations and experimental data, and is consistent with the classical mathematical models, allowing us to propose future improvements to the design.

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“…It is clear that for any current value the cut‐off frequency is larger with fewer photodiodes connected (smaller

C_{P h o t o}

). Furthermore, for both cases, it is observed the proportional relation between the cut‐off frequency and the current generated by the photodiodes, which is expected due the influence of