5402A Low Noise Current Amplifier

The 5402A is a low noise current input preamplifier designed for use whenever the signal source is a current source - for example, an electron multiplier, ion collector, photo multiplier, or photodiode, or when using a lock-in amplifier to measure sample impedance.

Additional functionality:

• Push button transimpedance gain setting with sub-pA sensitivity
• 100 kHz to 4 MHz bandwidth depending on gain setting
• Ultra-low noise design
• AC/DC coupled output with selectable low pass filtering
• Line powered or by internal rechargeable battery