AD5520_15 Datasheet, PDF (1/24 Pages) Analog Devices – Per Pin Parametric Measurement Unit/Source Measure Unit

Per Pin Parametric
Measurement Unit/Source Measure Unit
AD5520
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
AD5520
FIN
CLH
CLL
REFGND
MEASIOUT
MEASOUT
MEASVOUT
COMPARATOR
CPH
CPOH
CPOL
CPL
AV_EE AV_CC
BW SELECT
CLAMP
DETECT
G = 16
I_SENSE
INST AMP
V_SENSE
INST AMP
G=1
LOGICS
FOH
FOH3
FOH2
FOH1
FOH0
MEASI5H
MEASI4H
MEASI3H
MEASI2H
MEASI1H
MEASI0H
MEASIL
GUARDIN
G=1
GUARD
MEASVH
MEASVL
AGND
QM5
QM4
CPCK
Figure 1.
Rev. B
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