Manufacturer Part Numberad1315kz
DescriptionHigh Speed Active Load With Inhibit Mode
ManufacturerAnalog Devices, Inc.
ad1315kz datasheet
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+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
Automatic Test Equipment
Semiconductor Test System
Board Level Test System
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 I
and I
and I
currents are determined by applying a corresponding
voltage (5 V = 50 mA) to the I
and I
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-
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.
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
currents. The I
and a maximum differential voltage of 4 volts. This allows for
the direct interface to the precision of differential ECL timing or
pins. The voltage-
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
High Speed Active Load
with Inhibit Mode
World Wide Web Site:
© Analog Devices, Inc., 1997

ad1315kz Summary of contents

  • Page 1

    ... C to +70 C. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 High Speed Active Load with Inhibit Mode AD1315 FUNCTIONAL BLOCK DIAGRAM World Wide Web Site: © Analog Devices, Inc., 1997 ...

  • Page 2

    ... V, – For a 1% change the output current may change a maximum of 0.05% of Full Scale Range (FSR Specifications subject to change without notice. (All measurements made in free air at + otherwise noted.) AD1315KZ Min Typ –3.0 0.4 ECL –2.0 1 – ...

  • Page 3

    ... V, – – 13.1 V, – – – +300 C Model AD1315KZ *Z = Leaded Chip Carrier (Ceramic). –3– AD1315 CONNECTION DIAGRAM SUGGESTED PAD LOCATION Dimensions shown in inches and (mm). ORDERING GUIDE Temperature Package Range Description 0 to +70 C 16-Lead Gull Wing ...

  • Page 4

    AD1315 DEFINITION OF TERMS Gain The measured transconductance Input ) I OUT OUT Gain PROG PROG where: V values are measured PROG OL Gain Error The difference between the ...

  • Page 5

    Figure –I to Inhibit MAX MAX Propagation Delay vs. Temperature Figure 8. Inhibit Mode Leakage Current vs. Case Temperature Figure 10. AD1315 Propagation Delay Test Circuit REV. A Figure 7. Inhibit to +I Propagation Delay vs. Temperature ...

  • Page 6

    AD1315 FUNCTIONAL DESCRIPTION The AD1315 is a complete high speed active load designed for use in general purpose instrumentation and digital functional test equipment. The function of the active load is to provide independently variable source and sink currents for ...

  • Page 7

    APPLICATIONS The AD1315 has been optimized to function as an active load in an ATE test system. Figure 14 shows a block diagram illus- trating the electronics behind a single pin of a high speed digital functional test system with ...

  • Page 8

    ... The AD1315 Evaluation Board allows the designer to easily evaluate the performance of the AD1315 and its suitability for the specific application. The AD1315EB includes a mounted AD1315KZ active load, an ECL input buffer for Inhibit and the oscilloscope probe jacks necessary to properly analyze the true performance of the AD1315KZ. An equipment list is provided in order to minimize variations due to test setups ...