Picotest recently released a new family of signal injectors aimed at
improving voltage regulator, LDO, and power supply testing accuracy.
The family consists of two injection transformers, a DC bias injector, a
line injector, a solid state voltage injector, and a solid state current injector
along with cascadable attenuators.
Increased bandwidth and higher resolution measurements are enabled for PSRR,
stability, crosstalk, reverse transfer, input impedance, Bode plots, and
crosstalk tests along with non-invasive in-circuit testing for load transients,
stability and output impedance. The Signal Injectors work with network
analyzers, oscilloscopes, and arbitrary waveform generators from all
J2111A: a current injector that is capable of performing a small signal step
loading at switching speeds and bandwidths that electronic loads cannot handle (40MHz,
20ns Rise/Fall times). Datasheet and pricing: Click here.
J2120A: a line injector that allows the input DC supply voltage to be
modulated by the analyzer source signal similar to a PSRR measurement. The line
injector supports a frequency range that is generally well below the AC line
frequency and above control loop bandwidths (10Hz-10MHz). The line injector is
capable of operating levels that include 5 Amps maximum current and 50VDC
maximum input voltage, while minimizing the power dissipation within the
injector. Datasheet and pricing: Click here.
Injection transformers (J2100A 1Hz to 5MHz and J2101A 10Hz to 45MHz) and the
J2110A Solid State Voltage Injector: Also
known as a Bode box, these products enable network analyzers to measure
stability, input and output impedance, PSRR, component impedances, reverse
transfer, crosstalk and Middlebrook filter stability.
J2100A: Click here.
J2101A: Click here.
J2110A: Click here.
J2130A: a DC bias injector that has a 10Hz-10MHz usable bandwidth and can
easily measure varactors, junction capacitance, capacitors voltage sensitivity,
as well as bias low power transistor amplifiers and diodes for parameter
extraction. Datasheet and pricing: Click here.