ZHCSSH5A August 2023 – December 2024 LOG200
PRODMIX
請(qǐng)參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
The LOG200 converts current into voltage using an advanced, high-speed-amplifier architecture. By dynamically controlling the amplifier open-loop gain, the LOG200 achieves transient response from low-to-high current and high-to-low current measurements significantly faster than previous-generation logarithmic amplifiers.
The LOG200 features two current inputs, I1 and I2. The I1 input is optimized for speed, facilitating the excellent transient response of the device to changes in the measured current. The I2 input is optimized for precision and accuracy, intended for use with a current reference, such as the onboard 1μA reference. If an external current in excess of 100μA is used for I2, implement a snubber network to improve device stability.
The effective capacitance at a current input pin establishes the effective bandwidth of the corresponding feedback loop, and thus the effective device bandwidth. Photodiode capacitance and system parasitics both play a role and must be considered for stability and transient performance analyses.