品牌PICOTEST/台湾仪鼎

　　PICOTEST仪鼎仪器专业测试讯号转换器J2110A Solid State Voltage Injector 

　　     DC~45MHz的頻寬可支援溫度及機械控制(loop band width< 1Hz)和zui高性能調節器及放大器量測優異精確的低失真表現25Ω串接插入電阻50Ω 輸入阻抗(OSC port)< 3uA偏壓電流> 2 MΩ輸入電阻(IN port)可配合通用輸入型的高PSRR 低噪音穩壓器(J2170A)使用詳細規格PICOTEST仪鼎仪器专业测试器讯号转换器 

　　While it is possible to obtain high quality injection transformers with bandwidths as wide as 1Hz to 5MHz or more, in some cases this is still insufficient for some tests. For example a typical heater control loop might have a bandwidth of less than 1Hz while some linear regulators and opamp circuits can have bandwidths of up to 100MHz or in some cases even higher. For these applications, a solid state injector can provide the necessary bandwidth. A solid state injector can perform at DC, while the upper frequency limit is dictated by the components selected and the printed circuit board material and layout. It is possible to obtain a solid state injector with a working range of DC – 200MHz, though above 50MHz the interconnection between the injector and the circuit being tested can become quite critical. It is essential that ripple from the injector power supply does not dramatically degrade the dynamic range or the signal to noise ratio of the measurement. The resulting plots are often much cleaner when using a solid state injector than with a transformer injector.

　　The selection of a valid injection point in the circuit is more critical when using a solid state injector than with the transformer injector. The solid state injector presents an infinite impedance between the points of injection. In order to provide correct results one side of the measurement must present a much higher impedance than the other side. In a typical power supply control loop, the voltage sense divider is generally a good injection point, since the output impedance of the power supply is very low compared with the impedance of the voltage sense divider.

　　The solid state injector has a limitation in the operating voltage, with the majority limited to 10V or 12V. This is not the amplitude of the injection signal, but the peak value (positive or negative) of the signal operating voltage.PICOTEST仪鼎仪器专业测试讯号转换器 SpecificationsCharacteristicRatingMaximum Vcc±12VMaximum Icc20mAMaximum Input Voltage DC+AC±10.5VMaximum Output Voltage±10.5VOffset Voltage3mVBias Current8uA3dB Bandwidth (-10dBm)DC ~ 40MHzTemperature range0 ~ 50°CMaximum Altitude6000 Ft

　　J2100A 1 hz - 5 mhz

　　J2101A  10 hz - 45 mhz

　　J2110A

　　J2120A

　　J2130A

　　J2140A

　　J2160A

　　J2180A

　　J2180A

　　J2190A