Transconductance amplifier for optical metrology applications of light-emitting diodes

Tutkimustuotos: Lehtiartikkelivertaisarvioitu



  • VTT MIKES Metrology


Light-emitting diodes (LEDs) have many applications in optical metrology. Depending on the measurement scheme, an LED might be driven for example using constant current, amplitude or pulse-width modulated current, or current pulses. We present the design and characterization of a transconductance amplifier (TCA) optimized to drive LEDs in optical metrology applications. The device is capable of delivering peak and RMS currents up to 10 A and 1 A, respectively, and has a selectable transconductance ranging from 100 μS to 10 S. Typical cut-off frequency for the current output is around 10 MHz for various types of LEDs.


JulkaisuIEEE Transactions on Instrumentation and Measurement
TilaSähköinen julkaisu (e-pub) ennen painettua julkistusta - 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 36266662