Per Pin Parametric
Measurement Unit/Source Measure Unit
AD5520
FEATURES
GENERAL DESCRIPTION
Force/measure functions
FIMV, FVMI, FVMV, FIMI, FNMV
Force/measure voltage range ±11 V
4 user programmable force/measure current ranges
±4 μA, ±40 μA, ±400 μA, ±4 mA (external resistors)
2 user programmable extended current ranges
Up to 6 mA without external driver
Higher currents with external driver
Clamp circuitry and window comparators on board
Guard amplifier
64-lead LQFP package
The AD5520 is a single-channel, per pin parametric measurement 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 user-programmable 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.
APPLICATIONS
Automatic test equipment
Per pin PMU, shared pin PMU, device power supply
instrumentation
Source measure, parametric measurement,
precision measurement
COMPOUT1
COMPOUT2
COMPOUT0
COMPIN2
AD5520
COMPIN1
COMPIN0
FUNCTIONAL BLOCK DIAGRAM
AVEE AVCC
FOH
BW SELECT
FOH3
FOH2
FIN
FOH1
FOH0
MEASI5H
CLAMP
DETECT
MEASI4H
MEASI3H
MEASI2H
CLH
MEASI1H
CLL
MEASI0H
REFGND
G = 16
MEASIOUT
MEASIL
ISENSE
INST AMP
VSENSE
INST AMP
MEASOUT
GUARDIN
G=1
MEASVOUT
COMPARATOR
CPH
MEASVL
CPOH
AGND
QM5
03701-001
DGND
CS
DVDD
QM4
AC0
AC1
CLLDETECT
MOE
CLHDETECT
AM0
AM1
AM2
MSEL
FSEL
CPSEL
CPCK
STB
CPL
STANDBY
LOGICS
CPOL
GUARD
MEASVH
G=1
Figure 1.
Rev. B
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