Introduction Advanced Linear Devices committed servicing needs voltage

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Introduction Advanced Linear Devices committed servicing needs voltage

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EPAD® Technology (Electrically Programmable Analog Device)
Introduction Advanced Linear Devices committed servicing needs voltage, power, high precision linear circuit applications. Many high performance high precision instrumentation control systems require trimming circuit parameters. example, critical components such sensors affected minor variations their production processes their application environmental conditions such temperature, altitude humidity. Calibration adjustment electronic trimming output signal individual sensor units many cases only achieve greater accuracy, control, uniformity. Hence EPAD® (Electrically Programmable Analog Device) Technology developed specifically Advanced Linear Devices address this need. EPAD class analog device, like operational amplifier converter. unique CMOS-based device which, when used combination with inexpensive programmer, allows software-based analog circuit trimming 100,000 discrete steps with resolution millivolt. EPAD MOSFETs available dual quad versions; they also available embedded standard linear function versions, such EPAD Operational Amplifiers. engineering environments, EPAD quickly easily programmed needs specific application. production test environments, programmed "in-system" integral part circuit board assembly, thereby providing precise control over entire system. EPAD Technology EPAD solid state technology. This technology eliminates mechanical difficulties inherent trimmer potentiometer technology. simpler, less expensive, easier use; many cases more accurate reliable than standard trimmer potentiometer microcontrol circuitry. Simply defined, EPAD programmable integrated circuit that contains MOSFET transistors with programmable threshold voltages. Once programmed, voltage current levels stored indefinitely inside device, even with power removed. Unlike microcontroller-based trimming, EPAD requires additional active circuitry, tiny fraction power, less board space. entire EPAD programming system consists EPAD devices, low-cost programmer with software, adapter module. EPAD MOSFETs programmed individually differential pairs. When programmed differential pairs, channel pair programmed activate certain condition, while other activates corollary, thus providing bi-directional control capability. This turn enables high degree flexibility design EPAD logic functions. example, pair EPAD MOSFETs used adjust input offset voltage operational amplifier. this case, EPAD device controls circuit that increases input offset voltage, while other controls circuit that decreases input offset voltage. Bi-directional trimming optimize system offset errors most demanding operational amplifier applications.
Advanced Linear Devices
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EPAD® Programmer Description E100 EPAD Programmer universal system that interfaces with standard IBM-compatible (386 higher with 3.0, Windows Windows printer port EPAD device through adapter module. Connection specific EPAD type EPAD programmer accomplished separate adapter modules with individual programs that specially configured each type EPAD device. EPAD devices programmed three basic ways: stand-alone mode, before they into circuit board application-specific mode, where specific user desired environments in-system mode, after assembly been built final assembly testing stage. In-system programming remote immediate production environments, where fast, easy permanent precision tuning required. In-system programming also embedded along with other hardware instrumentation control software part total system testing programming environment. Applications EPAD MOSFETs used where either voltage level needs adjusted (voltage output mode) resistance level needs adjusted (resistance output mode). Different channels biased used either modes. full breadth uses EPAD technology limited only imagination design engineer many ways that adjustable bias voltage/current device used circuit design element. technology behind EPAD devices make them especially suitable circuit applications telecommunications, instrumentation, medical devices industrial process control. Examples include portable data acquisition systems, process control monitoring, motor drive management, battery operated instruments, remote telemetry systems, low-level signal conditioning even complex neural networks. EPAD technology also offers exceptional advantages engineering laboratory production line, offering remote, precision, non-mechanical circuit voltage current trimming cost-effective, dependable efficient manner.
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Advanced Linear Devices

Introduction Advanced Linear Devices committed servicing needs voltage

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