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PDF AD1315 Data sheet ( Hoja de datos )
| Número de pieza | AD1315 | |
| Descripción | High Speed Active Load with Inhibit Mode | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AD1315 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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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
High Speed Active Load
with Inhibit Mode
AD1315
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.
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.
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
1 page  
AD1315
Figure 6. +IMAX, –IMAX to Inhibit
Propagation Delay vs. Temperature
Figure 7. Inhibit to +IMAX, –IMAX
Propagation Delay vs. Temperature
Figure 8. Inhibit Mode Leakage Current vs. Case Temperature
Figure 9. AD1315 DC Test Circuit
REV. A
Figure 10. AD1315 Propagation Delay Test Circuit
–5–
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AD1315.PDF ] | |
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