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FEATURES
500 MHz Driver Operation
Driver Inhibit Function
100 ps Edge Matching
Guaranteed Industry Specifications
50 ⍀ Output Impedance
>1.5 V/ns Slew Rate
Variable Output Voltages for ECL, TTL and CMOS
High Speed Differential Inputs for Maximum Flexibility
Ultrasmall 20-Lead SOP Package with Built-In Heat Sink
APPLICATIONS
Automatic Test Equipment
Semiconductor Test Systems
Board Test Systems
Instrumentation and Characterization Equipment
PRODUCT DESCRIPTION
The AD53040 is a complete high speed pin driver designed for
use in digital or mixed-signal test systems. Combining a high
speed monolithic process with a unique surface mount package,
this product attains superb electrical performance while preserving optimum packaging densities and long-term reliability in an
ultrasmall 20-lead, SOP package with built-in heat sink.
Featuring unity gain programmable output levels of –3 V to
+8 V, with output swing capability of less than 100 mV to 9 V,
the AD53040 is designed to stimulate ECL, TTL and CMOS
logic families. The 500 MHz data rate capacity and matched
output impedance allows for real-time stimulation of these
digital logic families. To test I/O devices, the pin driver can
be switched into a high impedance state (Inhibit Mode), electrically removing the driver from the path. The pin driver leakage
current inhibit is typically 100 nA and output charge transfer
entering inhibit is typically less than 20 pC.
Ultrahigh Speed Pin Driver
with Inhibit Mode
AD53040
FUNCTIONAL BLOCK DIAGRAM
VCC
VEE
VCC
VEE
39nF
39nF
VH
VHDCPL
DATA
DATA
50⍀
DRIVER
VOUT
INH
INH
VLDCPL
VL
TVCC
AD53040
THERM
1.0A/K
GND
GND
GND
GND
GND
The AD53040 transition from HI/LO or to inhibit is controlled
through the data and inhibit inputs. The input circuitry uses
high speed differential inputs with a common-mode range of
± 3 V. This allows for direct interface to precision differential
ECL timing or the simplicity of stimulating the pin driver from a
single ended TTL or CMOS logic source. The analog logic HI/LO
inputs are equally easy to interface. Typically requiring 10 µA of
bias current, the AD53040 can be directly coupled to the
output of a digital-to-analog converter.
The AD53040 is available in a 20-lead, SOP package with a
built-in heat sink and is specified to operate over the ambient
commercial temperature range of –25°C to +85°C.
REV. B
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: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1999
