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              首頁 > 光電器件 > 電流或電壓放大器 > 光電二級管放大器
              Photodiode Amplifier

              Photodiode Amplifier

              • Can Function as Optical Power Meter
              • 1 Part in 20,000 Resolution
              • Full Scale Input Range of ±20nA to ±20mA
              • Variable Bias Selectable from -14V to +14V
              • RS-232 Serial Interface

              This amplifier unit is a low noise, high gain, transimpedance amplifier that is designed to provide a direct digital readout of the current generated from a photodiode, photomultiplier, or similar current source. If a reading in Watts is desired, simply toggle the A/W setting. By adjusting the A/W setting on the amplifier to equal detector responsivity, the amplifier can measure the incident optical power. For detectors that require a reverse bias, the unit can apply a selectable bias in series with the photodetector.

              An output voltage port provides a ±2V full-scale analog signal directly proportional to the LCD display reading. For noise-sensitive measurements, the unit can be disconnected from its external supply and powered from its internal batteries. Battery low indicator is activated on the LCD when batteries need recharging via included power supply. Universal power supply includes wall connectors for US, UK, Europe and Australia

              Max Input Without Damage ±25mA
              Full Scale Ranges ±20nA to 20mA in decade steps
              A/W Setting 0.100 to 1.0000 in 0.005 increments; Defaults to 1 when not engaged
              Output Impedance 100 Ohms
              Bias Voltage Selectable -14V to +14V in 7mV increments; Defaults to 0 when not engaged
              Offset Control Offsets the display by up to ±20,000 counts
              Noise <1pA p-p, DC - 1kHz with <10pF detector capacitance
              Frequency Response (-3dB) 20nA: DC to 2.0kHz; 100nA: DC to 5.25kHz; 2µA: DC to 22kHz; 20µA, 200µA, 2mA, 20mA: DC to 40kHz
              Display 4 1/2 digit, 0.4" high LCD
              Power Requirements Rechargeable NiMH batteries with approximately 10 hours of use
              External Supply 85 to 260V AC, 50 - 60Hz universal supply, 10W max
              Dimensions 5.5" W x 2.5" H x 8.5" L
              Weight 2 lbs. (0.9kg) excluding external power supply
              Operating Temperature 0°C to 40°C (32°F to 104°F)
              Cable Included RS-232, Power


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