Multiferroic

The Precision Multiferroic tester is an advanced modification of the Premier II to allow30kHz measurements using the 200V internal amplifier and 50kHz measurements using the 100V

internal amplifier. The standard Premier II is limited to 5kHz and 10kHz respectively for those measurements above 10V using the same internal amplifiers.

Output Range ±10V, ±100V, ±200V built-in optional 4kV and 10kV amplifiers

• 18 bit analog to digital converters – 76μV sensitivity on 10pF Csense
• 0.5μs capture rate with 0.1μs interlace facility
• Polarization, output voltage, and SENSOR inputs captured simultaneously
• Minimum charge sensitivity -> 0.80Fc
• Minimum PZT capacitor area -> 0.08u2
• Maximum charge measurement -> 5.26mC (526mC w/HVI)
• Maximum PZT capacitor area -> 52.6cm2 (>100cm2 w/HVI)
• Maximum hysteresis loop frequency -> 30kHz@200V and 50kHz@100V
• Minimum hysteresis loop frequency -> 1/30th Hz
• 2 COMM channels for controlling high voltage amplifiers.
• 1 legacy 26-pin COMM channel
• 1 I2C COMM channel
• 2 external 18-bit, ±10V SENSOR voltage inputs.
• Requires a desktop or laptop computer with USB1.0 Port or better

The Precision Multiferroic test system is stable over the entire frequency and polarization range denoted in the figure above with a flat frequency response and an accuracy of 0.5% for measurements below 10V.  This range far exceeds that of any other test system available. 

 The figure above is the frequency and polarization range with the same specifications for measurements above 10V to 100V.  Again, this range exceeds that of any other test system available while achieving the 0.5% accuracy.   From 100V to 200V, the fastest test period is 50ms. 

The import of these frequency envelopes is that the Precision Multiferroic can provide consistent test procedures and measurements for a single non-linear material ranging from a thin film of a few hundred Ångstroms in thickness and very small area to a large capacitor made from thick bulk ceramic.