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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

MEASI4H

FIN

BW SELECT

FOH1

FOH2

FOH3

FOH0

CLH

CLL

REFGND

MEASIOUT

MEASOUT

MEASVOUT

G = 16

G = 1

CPH

CPOH

CPOH

CPL

MEASI5H

MEASIL

GUARDIN

GUARD

MEASVH

MEASVL

AGND

QM5

QM4

CLAMP

DETECT

INST AMP

INST AMP

LOGICS

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.