Electronic Design

Test And Measurement

Interface Cards Feature Two CAN Ports For Dual-Speed Operation
Models in a series of three dual-speed interface cards come with two controller area network (CAN) ports. One port supports high-speed CAN, while the other is configured for low-speed CAN. In other words, engineers now can simultaneously control a high-speed (ISO 11898) and a low-speed (ISO 11519) CAN from the same interface card.

The PCI-CAN/DS, the PCMCIA-CAN/DS, and the PXI-8462 can be used with desktop, notebook, and industrial PCs for automotive testing, diagnostics, prototyping, and simulation of applications that connect to the CAN bus. Specifically, designers can use the PCMCIA-CAN/DS with high-speed, low-speed, or dual-speed CAN adapter cables, since it can automatically detect the adapter cable's type.

The PCI-CAN/DS costs $1145, the PCMCIA-CAN/DS costs $1245, and the PXI-8462 costs $1345.

National Instruments, 11500 N. MoPac Expwy., Austin, TX 78759-3504; (800) 258-7022; fax (512) 683-9300; www.ni.com.

Mobile Communications DC Sources Provide Accurate Battery Emulation
Each of the models in a line of high-performance mobile communications dc sources behaves like an actual battery to permit testing of digital wireless devices with absolute accuracy. These sources provide output resistance programming, superior output stability, and extremely low transient voltage drop. A third current-measurement range provides precision battery current measurements in the 1A range.

Output resistance programming lets mobile-phone manufacturers accurately simulate the internal resistance of the battery or battery pack. Designers, then, get accurate and fast resistance simulation for multiple battery types. It also simplifies the test setup. According to their manufacturer, these solutions offer excellent output performance and stability for either short load leads or long load leads.

These dc sources range in price from $2295 to $3095. The 14565A Device Characterization Software, which supports these sources, costs $298.

Agilent Technologies, Test and Measurement Organization, 5301 Stevens Creek Blvd., MS 54LAK, Santa Clara, CA 95052; (800) 452-4844, ext. 7100; www.agilent.com.

Wide-Range Ohmmeter Records And Stores Up To 80 Measurements
A wide-range ohmmeter known as the PRS-801 Resistance System features computer communication capabilities as well as data logging and calculating. It can display resistance measurements while recording and storing up to 80 measurements. Also, it can calculate the minimum, maximum, and average of all stored data. This data can be downloaded to standard computer systems via the PRS-801's RS-232 output port, serial cable, and supplied software for ESD program documentation in Excel spreadsheets.

Users can operate the portable, battery-powered PRS-801 in automatic, automatic-manual, and manual modes. It measures resistance from 0.1 to 2.0 ~ 1014 ƒ¶ with a \}5% measurement accuracy. Multiple test voltages are available in sub-10-, 10-, and 100-V ranges. The PRS-801 can select these ranges automatically to comply with industry measurement practices. Or, operators can manually select these ranges themselves.

Contact the company for pricing and availability information.

Prostat Corp., 1072 Tower Lane, Bensenville, IL 60106; (630) 238-8883; fax (630) 238-9717; www.prostatcorp.com.

PXI Digitizer Line Uses Two Modes To Emulate Digital Oscilloscopes
The PXD series of digitizers features eight models with bandwidths ranging from 150 MHz to 1 GHz. Additionally, designers can choose from 11 possible acquisition memory length upgrades for a total of 19 PXI digitizer combinations. Their "instrument on a chip" technology combines a high-performance analog-to-digital converter (ADC) and long acquisition memory in a single hybrid. Plug-and-play functionality provides easy setup and use.

The 1-GHz bandwidth can be used to test datacom, telecom, and other high-performance products and ICs. Models include a fast single-shot sampling rate (either 2 or 1 Gsamples/s) and a 50-Gsample/s repetitive sampling rate. By including both modes, these devices can emulate a high-performance digital oscilloscope. These digitizers are based on the desktop-computer industry-standard PCI bus as well.

Shipments will begin in late fall. Pricing ranges from $4990 to $12,990. Memory upgrades also are available.

LeCroy, 700 Chestnut Ridge Rd., Chestnut Ridge, NY 10977-6499; (914) 425-2000; www.lecroy.com.

Software For Palm Computing Devices Offloads Data Loggers
HandCar software lets designers store data from many devices in Palm handheld computers. Later, users can offload this data to a PC for graphing, analysis, or export to other programs. The software also lets users manage their data loggers on location through Palm devices, eliminating the need to take the loggers back to a PC for launching and data offload.

The software provides functions for verifying logger operation, viewing current measurements, and checking battery status. During launching, HandCar also resynchronizes the data-logger clock. It runs on the Palm III, V, and VII organizers. An optional Palm-to-PC interface cable offloads data to a PC without a docking station. BoxCar Pro 4.0 or later software is required for operation.

Shipping now, HandCar costs $40. The Palm-to-logger cable is $15, BoxCar Pro 4.0 is $95, and the Palm-to-PC interface cable is $18.

Onset Computer Corp., P.O. Box 3450, Pocasset, MA 02559-3450; (800) LOGGERS, (508) 759-9500; fax (508) 759-9100; www.onsetcomp.com.

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