C2719

Features:

Three sensitivity ranges
  H: 10⁹ V/A
  M: 10⁷ V/A
  L : 10⁵ V/A
Zero adjustment with high resolution
Operates on either dry batteries or external power supply
Compact and lightweight


Application

Precision photometry
Laser monitors
Optical power meters
Colorimeters
Low signal current preamplifiers


Description

C2719 is a current-to-voltage conversion amplifier used to amplify weak photocurrent from a photodiode with very low noise. Three ranges of photocurrent detection sensitivity level (H, M, L) are selectable to match the input signal. A 10-turn potentiometer is used to zero the amplifier level so fine adjustments are possible with high resolution.

C2719 operates on the built-in dry batteries so it can be easily used anywhere. An external power input connector is also provided at the rear panel for a long, continuous operation or for use as part of a measurement system. In such applications, use the dedicated plug to connect to a stabilized DC power supply.

C2719 was developed specifically for use with Si photodiodes, but it can be used to detect photocurrent from phototubes.