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Categories: Oscilloscopes, Miscellaneous Oscilloscopes
Manufacturer: Newport
Model: 70710
Condition: Used
Seller: Testwall Ltd
Newport 70710
100.00 KHz Current Amplifier
The Port 70710 is a 100.00 KHz Current Amplifier
All our used & refurbished equipment is subject to electrical and cosmetic refurbishment in our In House Calibration Laboratory. We offer full warranty on all our equipment, supported by our Calibration & Repair Laboratory. Free shipping in the UK is standard. Please call or email us for a quick price quote
The 70710 is a low noise current-to-voltage amplifier, designed for photomultiplier tubes or photodiodes operating in the photovoltaic mode.
One of the most practical features of the 70710 is that it has six switchable amplifier selections, 104, 105, 106, 107, 108 and 109 volts per ampere. The 70710 also has a three position time constant switch.
Standard BNC input and output connectors facilitate connection to other devices.
The 70710 has wide dynamic range and linearity. The volts per ampere conversion ratio is determined by the switch setting. Changing the switch changes the feedback resistor. The input impedance, i.e. the apparent resistance, which the amplifier displays at its input, equals the feedback resistance divided by the gain of the operational amplifier (which is at least 150,000) plus a 1,200 ohm isolation resistor at the amplifier’s input. A feedback resistor of 106 ohm corresponds to a conversion ratio of 106, etc. The input impedance is then 106/150,000 or about 7 ohms plus the 1,200 ohm isolation resistor. Even at the 109 V/A setting, the input impedance is only about 8,000 ohms. These relatively low impedances are essential for obtaining a wide linear dynamic range from photodiodes.
Seller Amabile Electronic Test LLC
Used-Line Dealer since : 2003
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