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REV. A
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AD5520 Per Pin Parametric
Measurement Unit/Source Measure Unit
FEATURES
Force/Measure Functions
Force Voltage/Current, Measure Current/Voltage
Force Current/Voltage, Measure Current/Voltage
Force/Measure Voltage Range 11 V
4 Programmable Force/Measure Current Ranges
4 A, 40 A, 400 A, 4 mA
Extended Current Ranges
40 mA and 160 mA with External Driver
Clamp Circuitry and Window Comparators On Board
Guard Amplifier
64-Lead LQFP Package
APPLICATIONS
Automatic Test Equipment
Per Pin PMU, Shared Pin PMU, Device Power Supply
Instrumentation
Source Measure, Parametric Measurement, Precision
Measurement
FUNCTIONAL BLOCK DIAGRAM
C
MEASI4H
FIN
BW SELECT
C
FOH1
FOH2
FOH3
FOH0
AV
EE
AV
CC
CLH
CLL
REFGND
MEASIOUT
MEASOUT
MEASVOUT
G = 16
G = 1
CPH
CPOH
CPOH
CPL
MEASI5H
MEASIL
GUARDIN
GUARD
MEASVH
MEASVL
AGND
QM5
QM4
D
D
D
C
S
C
C
C
C
C
CLAMP
DETECT
V
SENSE
INST AMP
I
SENSE
INST AMP
LOGICS
A
A
C
M
A
A
A
M
F
C
S
CPCK
AD5520
COMPARATOR
G = 1
FOH
MEASI3H
MEASI2H
MEASI1H
MEASI0H
GENERAL DESCRIPTION
The AD5520 is a single channel per pin parametric measure-
ment unit (PPMU) for use in semiconductor automatic test
equipment. The part is also suited for use as a source
measurement unit for instrumentation applications. It
contains programmable modes to force a pin voltage and
measure the corresponding current or force a current and
measure the voltage. The AD5520 can force/measure over a
±
11 V range or currents up to
±
4 mA with its on-board
force amplifier. An external amplifier is required for wider
current ranges. The device provides a force sense capability to
ensure accuracy at the tester pin. A guard output is also
available to drive the shield of a force/sense pair. The AD5520
is available in a 64-lead LQFP package.
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