Per Pin Parametric
Measurement Unit/Source Measure Unit
AD5520
Rev. B
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FEATURES
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
APPLICATIONS
Automatic test equipment
Per pin PMU, shared pin PMU, device power supply
instrumentation
Source measure, parametric measurement,
precision measurement
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 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.
FUNCTIONAL BLOCK DIAGRAM
CL
L
D
ET
ECT
MEASI4H
FIN
BW SELECT
COM
P
OUT2
FOH1
FOH2
FOH3
FOH0
AVEE AVCC
CLH
CLL
REFGND
MEASIOUT
MEASOUT
MEASVOUT
G = 16
G = 1
CPH
CPOH
CPOL
CPL
MEASI5H
MEASIL
GUARDIN
GUARD
MEASVH
MEASVL
AGND
QM5
QM4
DGND
DV
DD
CS
STANDBY
COM
P
OUT1
COM
P
OUT0
COM
P
IN
2
COM
P
IN
1
COM
P
IN
0
CLAMP
DETECT
ISENSE
INST AMP
VSENSE
INST AMP
LOGICS
AC0
AC1
CLHDETECT
MOE
AM
0
AM
1
AM
2
M
SEL
F
SEL
CPSEL
ST
B
CPCK
AD5520
COMPARATOR
G = 1
FOH
MEASI3H
MEASI2H
MEASI1H
MEASI0H
03701-001
Figure 1.