PRODUCT INTRODUCTION
The LSPEC 4701 Weak Current amplifier is a
high-performance desktop low noise preamplifier
that uses a novel circuit topology and precision
electronics to amplify very weak current signals.
Amplifier sensitivity can be adjusted, bias voltage and
input bias current can be adjusted independently,
built-in signal filter can be set, support signal reverse
and blanking, strong anti-interference ability, can be
widely used in weak current signal detection field.
Application areas
It can be widely used in research, education, medical, photoelectric detection, electromagnetic
detection and other fields involving weak current signal detection.
PRODUCT FEATURES
Low noise
+ New low noise amplifier circuit topology and
precision components, amplifier has the world's
first-class noise level, self-noise ≤ 5fA;
High bandwidth
+ Adopt new bandwidth compensation circuit,
amplifier bandwidth DC~1MHz;
High gain
+ gain ±1pA/V~±1mA/V adjustable;
customize
+ can be customized amplifier gain, bandwidth and
other parameters according to user needs and use
occasions;
Nationally produced
+100% domestic, the circuit has a good general type
and integration, convenient function expansion and
maintenance;
PRODUCT PARAMETER
Input
Output
Input
AC or DC, single ended or
differential
Output
accuracy
±(0.5%× output voltage +10Mv)@25ºC
Bias
voltage
±5V adjustable
Maximum
output
±5V(high impedance load)
Bias current
±1pA~±1mA adjustable
Other
Maximum
input
±5mA
External sector
control
TTL signal input is blanked
Noise
Minimum 5fA/Hz0.5(see table
below for details)
Interface
RS232,9600baud
Sensitivity
1pA/V~±1mA/V step 0.5%
adjustable
Power supply
220VAC 50Hz Built-in 18650 battery pack
Frequency
response
±0.5dB DC~1MHz
Size
204.4mm×88.4mm×325.6mm(Maximum size)
Weight
4.7kg(Battery containing)
Filter
Signal Filters 2 configurable 6dB/oct roll-down filters Cut-off frequency: 0.03~1.2MHz(1-3-10 sequence)
high-pass, low-pass, band-pass
| Input |
Output |
| Input |
ACorDC,singleendedor differential |
Output
accuracy |
±(0.5%×outputvoltage+10Mv)@25ºC |
Bias
voltage |
±5Vadjustable |
Maximum output |
±5V(highimpedanceload) |
| Biascurrent |
±1pA~±1mAadjustable |
Other |
| Maximum input |
±5mA |
Externalsector control |
TTLsignalinputisblanked |
| Noise |
Minimum5fA/Hz0.5(seetable belowfordetails) |
Interface |
RS232,9600baud |
| Sensitivity |
1pA/V~±1mA/Vstep0.5%adjustable |
Powersupply |
220VAC50HzBuilt-in18650batterypack |
| Frequency response |
±0.5dBDC~1MHz |
Size |
204.4mm×88.4mm×325.6mm(Maximumsize) |
| |
|
Weight |
4.7kg(Batterycontaining) |
| Filter |
| SignalFilters2configurable6dB/octroll-downfiltersCut-offfrequency:0.03~1.2MHz(1-3-10sequence)high-pass,low-pass,band-pass |
Resound Photoelectric Technology Research Institute (LSRPTR)
Resound Photoelectric Technology Research Institute (LSRPTR), also known as Resound Research Institute, is affiliated with China Haiheng International Trade Group Co., Ltd. (CHHGC). As an investment attraction enterprise in Zhongyuan Science and Technology City and a construction unit of the Zhongyuan Aurora Laboratory, the institute is committed to the industrialization of scientific and technological achievements, guided by market demand.
Technical Cooperation
Resound Research Institute has established technical cooperation with numerous well-known domestic and foreign universities, research institutes, and enterprise platforms, including:
Tsinghua University
Lanzhou University
Zhengzhou University
Altai State Technical University of Russia
Northwestern Polytechnical University
Chinese Academy of Engineering
Henan Academy of Sciences
China Electronics Technology Group
CGN Group
Xiamen University
Henan University
National University
University of Electronic Science and Technology of China
Chinese Academy of Sciences
China Academy of Engineering Physics
China Shipbuilding Group
China Electronics Group
Henan Inspection Group
Research and Development Fields
* Applications of Micro-Electromechanical and Lithography Technology
* Optoelectronics and Spectroscopy Technology
* High-Power Laser and Device Preparation Technology
* Nuclear Instrument and Emergency Equipment System Applications
Introducing Advanced Technologies and Products
Resound Research Institute continuously introduces advanced new technologies and products in industrial application scenarios such as market supervision, public safety, environmental monitoring, and science, education, research, and production. This has led to the formation of a domestically produced high-end scientific equipment industry base that integrates design, research and
development, production, sales, and services. This base drives the iteration of downstream industry technology, enhances the transformation and industrialization level of scientific and technological achievements, and provides technological sources for innovative development.
){kind=link}