The HYPRES integrated SQUID array amplifier system offers ease of readout and low noise characteristics for measuring currents in low or zero (superconducting) impedance loads.
The DC SQUID array amplifier system is a product that resulted from a technology transfer to HYPRES from the National Institute of Standards and Technology (NIST) under a SBIR program sponsored by NASA Goddard Space Flight Center. This program has succeeded to merge NIST's SQUID technology with the HYPRES fabrication and packaging technologies to produce a SQUID-based amplifier system suitable for x-ray and cryogenic detector arrays. Such amplifier chips have been delivered to NASA, Stanford University, Harvard University, SQM technology, TERATEC Corporation, University of Colorado, and LETI in France.
Systems are supplied with all necessary electronics, including bias sources, feedback circuitry, and a test probe.
| Features |
|
| • | Elimination of
Step-up Transformer |
| • | Gain = 10 nV/pA |
| • | Standard Bandwidth
= 2 MHz (5 MHz option) |
| • | White Noise ~2
pA/SQRT(Hz) |
| Applications |
|
| • | Readout of Particle
Detectors |
| • | Magnetometry |
| • | Non-Invasive
Inspection |
| • | Any other applications
requiring SQUID sensitivity |
Both single and double-stage superconducting chips are fabricated using the HYPRES all-niobium technology. The amplifier circuit consists of a high sensitivity analog SQUID driving an array of DC SQUIDs. The following figures show circuit schematic and noise characteristics for a typical amplifier chip.
*For more information, please contact sales@hypres.com
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