Product category:
Resistors
News Release from: BI Technologies SMT | Subject: BCN31L and 628L Series
Edited by the Electronicstalk Editorial
Team on 03 March 2006
Ladder networks are cost-effective
convertors
A series of 8 and 10bit R2R resistor ladder networks targets automotive, industrial, building monitoring and process automation applications.
Providing design engineers with a cost-effective means of implementing A/D and D/A conversions in a variety of circuits, TT electronics BI Technologies SMT Division has released a series of 8 and 10bit R2R resistor ladder networks for automotive, industrial, building monitoring and process automation applications Designated the BCN31L and 628L Series, the thick film resistive ladder networks are packaged in space-saving 2512 chips and medium small-outline surface mount packages, respectively
This article was originally published on Electronicstalk on 15 Apr 2002 at 8.00am (UK)
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According to Jim Rieley, Sales Director for BI Technologies' SMT Division, the BCN31L and 628L Series ladder networks provide an economical and accurate means of data conversion for design engineers.
"The output accuracy of an R2R ladder network, when it operates as an array of voltage dividers, is a function of how closely each resistor is matched to the others in the network", Rieley explained.
"Because our ladder networks consist of resistor arrays that are printed directly onto a single substrate using a single film, they share similar electrical characteristics, giving them an inherent accuracy advantage over discrete solutions".
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The BCN31L Series, in 2512 chip configuration, is one of the smallest ladder networks on the market, Rieley continued.
The 8bit, 10-terminal, 2512 BCN31L Series ceramic devices feature a ladder accuracy of +/-0.5LSB.
The networks have a power rating of 25mW per resistor, with a package power rating of 400mW.
The 628L Series networks are available in a 16-lead SO-M body style plastic package.
Ladder accuracy is +/-0.5LSB for the 8bit networks and +/-1LSB for the 10bit networks.
Resistor power rating for the 628L devices is 40mW per resistor, with package power rating at 640mW.
Resistance range for both the BCN31L and 628L networks is 1 to 100kohm and +/-2% absolute tolerance, with TCRs to +/-100ppm/C.
Operating temperature range is -55 to +125C.
BI Technologies will also produce devices outside these specifications to meet customer requirements, with comprehensive application engineering and design support available for customers worldwide.
Typical pricing for the BCN31L and 628L ladder networks starts at $0.18 and $0.39, respectively in quantities of 12,000.
Lead times are from stock to 8 weeks.
Samples are available immediately for engineering evaluation and customer prototypes.
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