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Adjustable resistors calibrate precision analog circuits

Posted: 27 Dec 2007 ?? ?Print Version ?Bookmark and Share

Keywords:re-adjustable resistors? analog circuits? rejustors?

Microbridge Technologies Inc. has introduced a family of low-power, low TC re-adjustable resistors that provides a low-cost, single-element device to compensate and calibrate precision analog circuits for mass production. The low-power Rejustor can be used with off-the-shelf hardware from National Instruments (NI-cDAQ 9172) to calibrate a wide range of circuits in parallel.

The single-element parts maintain the same electrical specifications as the dual devices but at new price points required by high-volume consumer applications such as frequency tuning for many wireless products, said Microbridge. The Rejustors offer high temperature operation to 125C or higher, and high-frequency operation. The devices do not require power to operate in circuit; have no wiper resistance, and are adjustable to precision levels of 0.1 percent or better.

The single Rejustors may be used in a variety of applications. In addition to consumer and wireless applications, they are suitable for precision analog compensation in military, aerospace and satellite applications. They also find homes in automotive applications that range from optical systems to engine sensors and tire-pressure monitor, and industrial applications from simple calibration of power supplies to calibration of many types of sensors. They may also be used in medical and science as well as semiconductor applications.

All members of the low-power family (MBS-472-AL, MBS-902-AL, MBS-153-AL and MBS-333-AL) are priced at 65 cents in quantities of 1,000.

- Gina Roos

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