Print this page
Device Impedance – DC Bias Injector
What's included
J2130A DC Bias Injector
User Manual
1 Year Warranty
When using the network analyzer to measure impedance, such as the capacitance and ESR or a capacitor, or the DCR of an inductor, etc., it is often necessary to provide a voltage bias to the device being tested. This is true of semiconductor junction capacitances, varactors, and some ceramic capacitors (especially X5R). In these cases the impedance is a function of the DC bias on the device. The Picotest DC bias injector (J2130A) is used for this purpose during impedance measurements.
Features
- 10Hz-10MHz usable bandwidth Low loss design
- Easily measure varactors, junction capacitance
- Measure X5R capacitor voltage sensitivity
- Bias low power transistor amplifiers and diodes for parameter extraction
Detailed Specifications
| Specifications | ||||
| Characteristic | Typical | Units | Conditions | |
| Maximum DC Bias | 50 | VDC | ||
| Bias Resistance | 10k | Ohms | ||
| Maximum Bias Current | 5m | A | At 50V | |
| Frequency Response | 15-40M+ | Hz | Frequency Sweep 10Hz~500MHz, Power=-10dBm | |
| Temperature Range | 0-50 | C | ||
| Maximum Altitude | 6000 | Ft | ||
| Absolute Maximum Input-Output Voltage | 50 | V | Differential | |
| Absolute Maximum Voltage | < 50VAC and 75VDC | |||
The effect of DC bias on the J2130A frequency performance which shifts the - 3dB frequency.
Caution: To avoid equipment damage and/or severe injuries or death ensure that the absolute maximum ratings are observed and not exceeded at all times.