Unlike desktop amplifiers, preamplifier modules provide gain close to the detector before the signal-to-noise ratio is significantly degraded by cable capacitance and noise pickup. Signal processing and measurement after the preamplifier do not affect the signal-to-noise ratio performance. To achieve extremely low noise performance, we have selected very high gain while minimizing associated bandwidth loss. With our excellent R&D capabilities, we are able to offer a professional "high-end" series of current amplifiers. At a given bandwidth, the noise performance of our products far exceeds that of conventionally designed operational amplifier current-to-voltage converters.

FEMTO transimpedance amplifiers achieve near-ideal operation without any special adjustment or frequency compensation. Bandwidth and frequency response are independent of source capacitance up to 10 nF. There is no gain peaking. Lock-in amplifiers typically have special current inputs. In noise-limited experiments, using a low-noise preamplifier instead of a preamplifier significantly improves the sensitivity and speed of DSP locking. Femtoampere currents can then be measured within milliseconds.

I. Key Features

Bandwidth and frequency response independent of detector capacitance (up to 10 nF)

Ultra-low noise, equivalent input noise current 1.5 fA/√Hz

DC bandwidth ... 200 Hz

Transimpedance (gain) 1 x 10^10 V/A

II. Applications

Photodiode and photomultiplier tube amplifiers

Spectroscopy

Charge amplifiers

Ionization detectors

Preamplifiers for lock-in amplifiers, A/D converters, etc.

III. Technical Parameters

IV. LCA Models

LCA-2-10T

LCA-30-1T

LCA-30-200G

LCA-200-100G

LCA-200-10G

LCA-1K-5G

LCA-2K-2G

LCA-4K-1G

LCA-10K-500M

LCA-20K-200M

LCA-40K-100M

LCA-100K-50M

LCA-200K-20M

LCA-400K-10M

V. About Us

Shenzhen Bonade Precision Instrument Co., Ltd. is an import instrument channel distributor. Our agency products include: Femto amplifiers, laser power meters, beam analyzers, beam collectors, spot analyzers, high-power continuous zoom fiber laser collimator heads FAC, Germany GTE, Germany hhb Electronic, Pacific Lasertec helium-neon lasers, SRS Stanford amplifiers, Scitec optical choppers, AA Lab Systems equipment, DL Instruments amplifiers, friction coefficient testing, IP1x-6x dustproof test probes, IPX1-X8 waterproof test equipment, and other professional equipment. If you have any needs, please feel free to contact us for consultation.