LOG200 Precision High-Speed Logarithmic Amplifier

Texas Instruments LOG200 Precision High-Speed Logarithmic Amplifier is a wide-dynamic-range current-to-voltage amplifier designed to optimize current measurements across 160dB of dynamic range. The device has unparalleled accuracy and speed for medical diagnostics, optical communications, and industrial process-control measurements. The LOG200 features two logarithmic amplifiers and a high-accuracy differential amplifier that converts current signals into a voltage representing the log-compressed ratio of the two currents. The current inputs are designed to feature a highly accurate reference signal from one input and a high-speed response on the other input. This feature allows for a unique combination of high logarithmic conformity and fast transient response.