SR570
From OptoelectronicsWiki
The SR570 is a low-noise current preamp. Its input impedance can be tuned, which is helpful in keeping photodiode bias voltages constant at high current levels, and the bandwidth is ~1MHz. Manual.
The SR570 is a low-noise current preamp. Its input impedance can be tuned, which is helpful in keeping photodiode bias voltages constant at high current levels, and the bandwidth is ~1MHz. Manual.