The bandwidth of very high gain (≥100 MV/A) transimpedance amplifiers is restricted to below 100 kHz, unless measures are employed to mitigate the effect of circuit parasitic capacitances. Current approaches involve significantly increased circuit complexity and component count. The purpose of a transimpedance circuit is to convert an input current from a current source (typically a photodiode) into an output voltage. The simplest method to achieve this conversion is to use a resistor connected to ground. However, the achievable gain using this method is limited by the. Among compact, lab-friendly TIAs, Thorlabs' AMP100 stands out for its simplicity and its focus on low-frequency, high-sensitivity work. Input Noise [/√Hz] Offset adjustable by potentiometer or external control voltage. Mouser offers inventory, pricing, & datasheets for 100 MHz Transimpedance Amplifiers.
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