Current Amplifier

A range of current amplifiers are available from ultra low noise (0.18 fA/√Hz), high band width (400kHz) and high gain (10E13V/A). Designed with a small modular construction these current amplifiers are ideal for both lab and OEM applications. With many models to choose from, all applications needs can be met, including photodetection with PMTs and photodiodes, spectroscopy, scanning tunneling microscopy, ionisation detectors and capacitative (pyro, piezo) detectors. These modules are small and offer short electrical connections to the detector before the signal-to-noise ratio significantly decreases due to cable capacitance and noise pickup.

Variable-Gain High Speed Current Amplifier

Variable-gain high speed amplifier with up to 200 MHz

Description

The DHPCA-100 variable gain research-grade amplifier is the perfect choice for applications that require the conversion of small electrical currents into usable voltages at bandwidths up to 200 MHz. The DHPCA-100 offers many features including variable gain from 10² to 10⁸ V/A, switchable AC/DC-coupling, adjustable offset for baseline correction, adjustable bias voltage for use with fast photodiodes, switchable 10 MHz and 1 MHz low pass filters. All functions can be set either manually by switches or remote control via the opto-isolated interface. The LUCI-10 is available as an additional product as a USB interface. With its rugged and compact EMI shielded case the DHPCA-100 is the ideal universal high speed amplifier for a broad range of applications.

Applications include: Photodetector amplifier, fast ionisation detection, spectroscopy, preamplifier for oscilloscopes, A/D convertors and RF Lock-in amplifiers.