Product category:
Power Supply ICs and Controllers
News Release from: Semtech | Subject: E7804, four channel BiCMOS pin electronics IC
Edited by the Electronicstalk Editorial
Team on 30 March 2005
High-end features brought to low-cost
ATE systems
Highly integrated four channel BiCMOS pin electronics IC can increase throughput of testers and still deliver one of the lowest cost-per-channel ratios in the industry.
Semtech Corp, a leading supplier of analog and mixed-signal semiconductors for communications, portable devices, computers, and industrial equipment, today announced availability of the E7804, a low power, four channel BiCMOS pin electronics IC that is designed to bring high-end features to low-cost logic, memory or mixed signal automated test equipment (ATE) systems The E7804 tri-statable drivers operate up to 133MHz at 3V with very low propagation delay dispersions due in part to on-chip self-calibrating output impedance circuitry to match the driven loads
This article was originally published on Electronicstalk on 16 Jul 2001 at 8.00am (UK)
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The device can generate high quality signals over a range of -0.2V to +5.2V.
Each channel on the device has a window comparator that is well matched in performance to the drivers for dispersion stability and high speed tracking.
Each channel also has its own programmable continuity test circuit (CTC).
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This allows for rapid, concurrent testing of continuity, shorts and opens on the device under test (DUT), saving the engineer from time consuming polling with external parametric measurement units (PMU).
With CTC functionality on all channels, all active pins may be tested at the same time, increasing overall throughput for ATE applications.
"The highly integrated, BiCMOS-based design of the E7804 gives our customers the features and performance they need to compete in an evolving yet cost-driven market," said Tim Wilhelm, marketing director for test and measurement products at Semtech.
"Not only is the feature set robust, but it is carefully chosen to yield the best cost per channel with important throughput enhancements for ATE systems." The E7804 features timing accuracy that can eliminate the need for systems to employ additional and expensive timing measurement and deskew circuitry.
Timing accuracies are specified over the entire range of process, voltage and temperature and all specifications are fully defined and guaranteed.
High-voltage disconnect switches are available at each driver and window comparator to allow the ATE system to stress the DUT pins while protecting the driver and window comparator circuits.
The disconnect switches are used in conjunction with external high-voltage PMUs to generate voltages outside the normal operating levels of the pin electronics, -4.75V to +9.75V.
For rapid programming via serial data bus, the E7804 supports a PinCast methodology which again increases the throughput of testers by cutting down the time needed for individually programming all the hundreds to thousands of pin channels in a system.
Any channel on the device can be independently assigned to any one, none or all of the eight possible sets.
Subsequently, a single Set instruction can broadcast to all devices, and all pin channels assigned to that Set will program accordingly in unison.
Key Features of the Edge7804: * Four integrated three-statable drivers, window comparators, and continuity test circuits.
* Voltage range for drivers, comparators: -0.2V, +5.2V.
* High voltage disconnect range of -4.75V up to +9.75V allows the PMU or other instruments to overstress the DUT pins while protecting the driver and window comparator circuits.
* Per pin continuity test (force current up to -250uA, limit voltage 0 to -2V).
* Self-calibrating driver output impedance to an external reference (48 Ohms to 110 Ohms).
* Very low power dissipation (250mW/channel typical, ~500mW maximum over all temperature and driving frequencies).
* 4,000V ESD protection (human body model).
* 28 pin MQFP package (with internal heat spreader).
* On-chip buffered per channel driver levels.
Pricing and availability - the E7804 is available immediately in production quantities and is priced at $37.22 per 1,000-piece lot.
The device is packaged in a 128-pin MQFP package, and the ordering code is E7804AHF.
An evaluation board is also available with the ordering code of E7804EVM.
Semtech offers comprehensive design assistance, including field- and factory-based support.
Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting salesinfo@semtech.com.
About Semtech - Semtech Corporation is a leading supplier of high-quality analog and mixed-signal semiconductor products.
The company is dedicated to providing customers with proprietary solutions and breakthrough technology in power management, protection, advanced communications, human interface, and test and measurement products.
Publicly traded since 1967, Semtech is listed on the NASDAQ National Market under the symbol SMTC.
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