s8745-01 Hamamatsu Photonics, K.K.,, s8745-01 Datasheet
s8745-01
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s8745-01 Summary of contents
Page 1
... S8745-01, S8746-01 are low-noise sensors consisting of Si photodiode, op amp, and feedback resistance and capacitance, all integrated into a small package. By simply connecting to a power supply, S8745-01 and S8746-01 can be used in low-light-level measurement such as analytical equipment and measurement equipment. The active area of the photodiode is internally connected to the GND terminal making it highly resistant to EMC noise ...
Page 2
... The current-to-voltage conversion gain can be varied by connecting an external feedback resistor between pins 4 and 6 for S8745-01, and between pins 9 and 12 for S8746-01 (see figure 5). Figure 2 shows the frequency response characteristics of S8745-01 and S8746-01 with or without an externally connected feedback resistor. Because S8745-01 and S8746-01 have a built-in resistor for example the total feedback resistance will be converted to 100 M externally connecting a resistor of 111 M ...
Page 3
... Figure 1 and Figures 4. Note) When S8745-01 and S8746-01 are used only with the internal current-to-voltage gain recommended that the "-IN" lead (pin 6 for S8745- 01; pin 9 for S8746-01) be cut off to a short length in order to reduce the influence of external noise as much as possible. ...
Page 4
... When a feedback resistor is externally connected necessary to provide a guard ring on the circuit board or to provide a teflon standoff for the leads. Note) A tantalum or ceramic capacitor of 0 µF must be connected to the supply voltage leads (pins 3 and 9 for S8745-01; pins 1 and 4 for S8746-01 bypass capacitor used to prevent the device from oscillation. ...
Page 5
... BOTTOM VIEW ESD S8745-01 and S8746-01 may be damaged or their performance may deteriorate by such factors as electro static discharge from the human body, surge voltages from measurement equipment, leakage voltages from soldering irons and packing materials countermeasure against electro static discharge, the device, operator, work place and measuring jigs must all be set at the same potential. The following precautions must be observed during use: · ...