You know the routine. You’ve rigged up a prototype for your application. Your detector is doing what it does. Now all you need is a current amplifier so you can see (and measure) what’s happening. Problem is, which amplifier to go for? How much bandwidth do you need? How much gain do you need? You may not know at this stage, so which amplifier do you go out and buy?
The DLPCA-200 from Femto has a transimpedance gain that is switchable from 1 x 103 to 1 x 1011 V/A with a bandwidth up to 500 KHz (which can be switched to DC for low noise DC measurements). It has adjustable bias voltage for your external photodetector and adjustable offset. It also has switchable AC/DC coupling. Furthermore, you can connect it to your PC for even more flexibility.
Need More Speed?
The DHPCA-100 has all the flexibility of the DLPCA-200, but with an upper cut off frequency of 200 MHz.
Use them with your photodetectors, STM’s, ionization detectors, as pre-amps for lock-ins and oscilloscopes, for A-D converters and for general Lab use. Then when you’ve finished, use them again for your next prototype with different settings.
