Re-Adjustable Resistors calibrate analog circuits.
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Press Release Summary:
Comprised of single-element devices that compensate and calibrate precision analog circuits, MBS Series includes 4 models with resistance ranges of 2.7-3.3, 9.0-6.3, 15-10.5, and 33-22 K. Units are suitable for wireless, military, aerospace, and satellite applications as well as optical systems, engine sensors, and tire-pressure monitors in automotive sector. As sealed devices, rejustors withstand harsh environments and operation to 125°C and beyond.
Original Press Release:
Microbridge Technologies Announces Availability of New Single Low Power Adjustable Resistor Family
New Devices Provide Integrated Calibration Compensation Systems for Analog Circuit Designs and Production Ideal for Wireless, Military, Aerospace and Satellite applications
Montreal, Canada - December 11, 2007 -Microbridge Technologies, Inc., the leader in passive, analog precision calibration products (Rejustors), today announced the availability of a new family of low power, Low TC re-adjustable resistors designed to meet customer needs for a low cost, single element device to compensate and calibrate precision analog circuits.
Microbridge has previously shown its capability to calibrate individual electronic devices such as voltage references, sensors or circuits needing adjustments with passive, electrically adjustable resistors. The new single, low power Rejustor will emphasize how to calibrate devices and circuits for mass production. It can be used with off-the-shelf hardware from National Instruments (NI-cDAQ 9172) to calibrate a wide range of circuits in parallel.
"This release addresses additional market segments where only one variable resistor is required," said Bob Frostholm, vice president, Marketing and Strategic Alliances at Microbridge. "These new parts maintain the same electrical specifications as our dual devices and allow us to hit new price points required by high volume consumer oriented applications such as frequency tuning for many of the popular newly introduced wireless products. In addition, Our Rejustors offer high temperature operation to 125°C or higher, high frequency operation, require no power to operate in circuit, have no wiper resistance, and are adjustable to precision levels of 0.1% or better."
Applications
Microbridge Single Rejustors have a wide variety of applications. In addition to consumer and other wireless applications, they are suitable for precision analog compensation in military, aerospace and satellite applications. Automotive applications range from optical systems to engine sensors and tire-pressure monitor. As a sealed device, the Rejustor is well suited for operation in harsh and demanding environments. Industrial applications range from simple calibration of power supplies to calibration of sensors of many kinds including photo transistors, pressure sensors and magnetic proximity sensors. Other consumer applications include LCD screens VCOM adjustments and timing devices. In medical & science, Microbridge calibration techniques are ideal for use in catheter applications. In Semiconductors, Microbridge's CMOS based technology enables integration of Rejustor calibration and compensation devices for designs that require better precision than fuses, digital potentiometers or laser trimming can achieve.
Pricing & Availability
The new devices are available off the shelf through Microbridge's worldwide distributor, Future Electronics. All members of the Low Power family are priced at $0.65 for 1,000 piece quantities. For sales enquire, contact Microbridge at sales@mbridgetech.com.
Part QFN Order Resistance
Number Code Range R1
MBS-472-AL 115F 4.7K - 3.3K
MBS-902-AL 115H 9.0K - 6.3K
MBS-153-AL 115J 15K - 10.5K
MBS-333-AL 115L 33K - 22K
About Rejustors
Rejustors are passive resistors made from the same Polysilicon materials used in high volume CMOS IC processing. They are easily set to their desired resistance value using the same simple calibration hardware and software algorithms as Microbridge's Low TC Rejustors to provide easy calibration of analog circuits.
A perfect application for Rejustors is in Wheatstone Bridges. These bridge elements are prone to being unbalanced by factors other than the desired sensor response. Having the ability to calibrate each resistor to a very precise ohmic value makes it easy to match the divider midpoints. And if the TCRs of the four resistances are matched as well, as is the case of Rejustors, there can be a substantial improvement in accuracy over temperature variation.
The devices are also well suited for replacing manual trim-pots, digital pots, and hand selected precision resistors in precision applications.
Unlike digital pots, Rejustors offer further advantages in applications requiring high temperature and high frequency operations. Digital pots are typically specified to only 70°C or 85°C. Rejustors operate easily to 125°C and beyond, allowing applications in mil/aero designs. Digital pots are often limited to applications where operating frequencies are well under 1MHz. Due to the inherent physical design of the Rejustor, they are well suited for high frequency operations that can easily exceed 1GHz.
For more information on rejustors, please click on www.microbridgetech.com/resistor-technology/resistor-white-papers.php for a Microbridge technical whitepaper on rejustors. Product images are available at www.microbridgetech.com/press/images
About Microbridge Technologies
Microbridge Technologies, Inc. is the leading manufacturer and licensor of next step electronic calibration products and solutions in the consumer, automotive, medical and other industries that need to improve manufacturing yields and productivity and enter new markets. Microbridge's resistor calibration products (Rejustor(TM)) and enabling technology are the first integrated calibration and temperature compensation systems for analog circuit designs and production. Microbridge's technology enables product designers to achieve one-step calibration and passive adjustment, is adaptive and adjustable in circuit, and it allows calibration in the analog domain to improve the design of current and future products. Microbridge is a privately held company with headquarters in Montreal, Canada and offices in Boston, Mass and San Jose, Calif. For more information please visit www.mbridgetech.com
