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ADI claims 'first' quad-channel PMU

Posted: 13 Oct 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Analog Devices? parametric measurement unit? PMU? AD5522? AD5523?

Analog Devices Inc. (ADI) touts its new AD5522 as the industry's first quad-channel parametric measurement unit (PMU). The device combines four independent channels in a 12-by-12mm TQFP package, with each channel featuring on-chip sense resistors for 5?A, 20?A, 200?A and 2mA current ranges. An external range is also available on each channel, ADI said, enabling designers to generate up to 64mA with an external sense resistoror higher currents with an external buffer.

Each channel also includes voltage and current clamps, a window-comparator and a guard amplifier. A full set of registers is included for each mode of operation. All PMU functions are controlled via a serial SPI or LVDS interface. The 80-lead TQFP package is available with the paddle on either top- or bottom-side. The device also features a 22.5V voltage span that is both scalable and offsetable, providing greater design flexibility, the company said.

The AD5522 is designed for ATE and instrumentation applications, including memory testers, SoC testers, voltage/current sources and analog instruments with high precision source and measurement circuitry.

The new PMU is sampling in an 80-lead, 12-by-12mm TQFP package and is scheduled for release in April 2007. The AD5523, a related product without the LVDS interface and external current range, is available in a smaller 64-lead, 9-by-9mm LFCSP package. The AD5522 is priced at $39 while the AD5523 is available for $31, both in 1,000-piece orders. An evaluation board for the AD5522 is also available.




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