The 5 mm² Photodiode-Preamplifier ODA-5WB-100K from Opto Diode Corporation is the first in a series of three blue/green-enhanced devices. The new silicon detector-preamp features 100 Kohm gain (custom gains are also available, upon request). It offers wavelength response at 450 nm, typically 28 V/mW (min. 20). Responsivity ranges from 400 nm to 1100 nm, with a peak spectral response of 940 nm and features a large active area, high sensitivity, and extremely low noise.