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AD1315 数据表(PDF) 1 Page - HANAMICRON |
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AD1315 数据表(HTML) 1 Page - HANAMICRON |
1 / 8 page REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD1315 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 High Speed Active Load with Inhibit Mode FUNCTIONAL BLOCK DIAGRAM PRODUCT DESCRIPTION The AD1315 is a complete, high speed, current switching load designed for use in linear, digital or mixed signal test systems. By combining a high speed monolithic process with a unique surface mount package, this product attains superb electrical performance while preserving optimum packaging densities in an ultrasmall 16-lead, hermetically sealed gull wing package. Featuring current programmability of up to +50 mA, the AD1315 is designed to force the device under test to source or sink the programmed IOHPROG and IOLPROG currents. The IOH and IOL currents are determined by applying a corresponding voltage (5 V = 50 mA) to the IOH and IOL pins. The voltage- to-current conversion is performed within the AD1315 thus allowing the current levels to be set by a standard voltage out digital-to-analog converter. The AD1315’s transition from IOH to IOL occurs when the output voltage of the device under test slews above or below the programmed threshold, or commutation voltage. The commuta- tion voltage is programmable from 2 V to +7 V, covering the large spectrum of logic devices while able to support the large current specifications (48 mA) typically associated with line drivers. To test I/O devices, the active load can be switched into a high impedance state (Inhibit mode) electrically removing the active load from the path through the Inhibit mode feature. The active load leakage current in Inhibit is typically 20 nA. The Inhibit input circuitry is implemented utilizing high speed differential inputs with a common-mode voltage range of 7 volts and a maximum differential voltage of 4 volts. This allows for the direct interface to the precision of differential ECL timing or the simplicity of switching the Active Load from a single ended TTL or CMOS logic source. With switching speeds from IOH or Io~ into Inhibit of less than 1.5 ns, the AD1315 can be electrically removed from the signal path “on-the-fly.” The AD1315 is available in a 16-lead, hermetically sealed gull wing package and is specified to operate over the ambient com- mercial temperature range from 0 °C to +70°C. FEATURES +50 mA Voltage Programmable Current Range 1.5 ns Propagation Delay Inhibit Mode Function High Speed Differential Inputs for Maximum Flexibility Hermetically Sealed Small Gull Wing Package Compatible with AD1321, AD1324 Pin Drivers APPLICATIONS Automatic Test Equipment Semiconductor Test System Board Level Test System |
类似零件编号 - AD1315 |
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类似说明 - AD1315 |
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