E/E Spotlight ... Electronic Boards & Components

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• No EMI
• Arc-free switching

Solid-state relay.

The G2 series of relays are comprised of an LED input and metal oxide semiconductor, field effect transistor (MOSFET) output. The input is optically isolated from the output. Operation of the relay is accomplished through the control circuitry on a photo diode array (PDA) semiconductor chip. This PDA chip converts the light energy from the LED into voltage required to operate the MOSFETs. Additional circuitry built into the PDA controls fast operation and current limiting in the output. It is ideally suited for data communications applications. It features no EMI/RFI generation, arc-fee switching and no contact bounce. Coto Technology, 55 DuPont Dr, Providence, RI 02907. 401-943-2686. http://www.cotorelay.com

Circle 650.

Reconfigurable analog circuit. The TRAC020LH analog and signal processing circuit uses eight electrically reconfigurable high-level building blocks, which enable the implementation of any mathematical or transfer function. Each TRAC cell can be electrically configured to provide log, antilog, add, negate, rectify, amplify, differentiate, integrate, plus open- and short-circuit detection functions. Zetex, 47 Mall Dr, Commack, NY 11725. 516-543-7100. http://www.zetex.com Circle 651.

Digital signal processor. The ADSP-21 mod 870 internet gateway DSP processes voice-over-IP (VoIP) and fax-over-IP (FoIP). It has real-time FAX functions, enables high-channel density and provides the on-chip integratability needed to be an alternative to traditional telephone service. The ADSP-21 mod 870 acts as a bridge between the voice-based continuous connection switched network and the packet-based IP network. Analog Devices, PO Box 9106, Norwood, MA, 029062. 800-262-5643. http:// www.analog.com

Circle 652.

Compact PCI backplanes. This range of hot swap backplanes is designed specifically for Computer Telephony (CT) applications and is compliant to the PIC Industrial Computer Manufacturers Group (PICMG) specifications. They are ideal for use in high end, fault tolerant system platforms in the CT industry and have provision to support basic hot swap of CT and peripheral boards. APW Electronic Solutions, 6790 Flanders Dr, San Diego, CA 92121. 800-854-7086. http://www.apw-elsol.com Circle 653.

In-line bridge assembly. The RBV series is compact in size, requires very little PCBA space, and is useful in power supplies for a variety of electronic equipment. The RBV can handle 6-50A of current in the 50-1000V range. They are made of high thermal-conductive materials for maximum heat dissipation in an electronically isolated package. EIC Semiconductor, 30000 Sand Canyon Rd #116, Santa Clara, CA 91351. 800-EIC-PROD. Circle 654.

Dual analog front end. The AFE2124 increases reliability, reduces component count, and lowers manufacturing costs in DSL (Digital Subscriber Line) applications by replacing standard two-chip designs with a single chip solution. In addition to the advantages gained from single chip integration, the AFE2124 offers low power dissipation of 250 mW per channel and low cost-per-channel. Burr-Brown, PO Box 11400, Tucson, AZ 85734. 800-548-6132.

http://www.burr-brown.com Circle 657.

ESD suppressor. The SurgX line of products utilizes a polymer-based material, and is specifically designed to protect sensitive electronic circuits from the threat of ESD. SurgX products react almost instantly to the transient voltage and effectively clamp it below 60V, meaning less voltage stress during the clamp period and greater IC protection. Cooper Bussmann, 114 Old State Rd, Ellisville, MO 63021. 314-394-2877. http://www.bussmann.com Circle 658.

Capacitor/resistor chip. The CR73 series of impedance chips offers excellent reliability in severe application environments. They are available in 0805 and 1206 sizes with ranges from 1(omega) to 10K(omega). These chips are ideal for use in termination of clock signals and data lines to reduce transmission line effects, which are common to digital signals surpassing 20 MHz. They are available with nickel and solder plated terminations. KOA Speer Electronics, PO Box 547, Bradford, PA 16701. 814-362-5536. Circle 659.

PCI digital I/O board. The PD-DIO features ESD protected inputs and automatic short detection on power-up. These I/O boards are configured with 64 or 128 lines, and use 16-bit line drivers, which allow you to configure the start-up states in groups of 16-bit ports. The on-board DSP/PCI interface allows you to use three 24-bit counter timers, four high-speed IRQ lines and two high-speed ESI ports. UEI, Ten Dexter Ave, Watertown, MA 02472. 617-924-1155. http://www.ueidaq.com

Circle 660.

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