Vishay utilises thin film integrated resistor network technology to implement fixed precision resistor networks and precision dividers.
Their advantages include extremely close matching of all elements in a network, ensuring close tracking over temperature and throughout life. These very small, high-density, multi-element networks save printed circuit board real estate, with repeatable and consistent characteristics, part to part, and lot to lot.
They have very low inductance with outstanding reliability and fewer individual interconnections. There are no thermoelectric effects, and installed costs are no more than discrete types, and often less.
Applications include power regulation, signal conditioning, sensor circuits, and power supply output stages.
Analog Devices provides a portfolio of quad resistor networks with excellent matching specifications over the entire temperature range. All of their resistors can be accessed and biased independently, making them a convenient and versatile choice for any application that can benefit from matched resistors. Their resistor networks provide the precise ratiometric stability required in highly accurate difference amplifiers, voltage references, and bridge circuits.
Alpha Electronics’ Bulk Metal® foil high precision resistors, unlike precision-class metal film resistors or wire-wound resistors, are ultra-precision devices in which the primary resistance element is a special alloy foil several µm thick.
Use of this Bulk Metal® Foil as the resistance element gives superior performance not found in other resistors, satisfying military specification MIL-PRF-55182/9. In particular, the temperature coefficient of resistance has been reduced to an unprecedented, extremely low value by strict quality control of alloy composition and newly developed foil stabilization treatment technology. In addition, from the point of view of long-term stability, which is an important property of a resistor since the foil has a thickness of several µm instead of the extremely thin film of a metal film resistor, the natural stability of metal is preserved, resulting in very little resistance change over several years.
Farnell offers a choice of MU Series Ultra Precision SMT Resistor 1-2-3 Network devices based on this high precision technology.
