AD5522JSVDZ datasheet(42/45 Pages) AD

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AD5522

Preliminary Technical Data

Rev. PrL | Page 42 of 45

TYPICAL APPLICATION FOR THE AD5522

Figure 20 shows the AD5522 as used in an ATE system. This

device can used as a per pin parametric unit in order to speed

up the rate at which testing can be done.

The central PMU shown in the block diagram is usually a

highly accurate PMU, and is shared among a number of pins in

the tester. In general, many discrete levels are required in an

ATE system for the pin drivers, comparators, clamps, and active

loads. DAC devices, such as the AD5379, offer a highly

integrated solution for a number of these levels. The AD5379 is

a dense 40-channel DAC designed with high channel

requirements, such as ATE

Comp

Driver

PPMU

Active Load

DUT

Formatter

De-Skew

Timing

Generator

DLL,Logic

Compare

Memory

Compare

Memory

VTH

VTL

IOL

IOH

VCOM

Relays

50Ω Coax

VCH

VCL

Vterm

GND Sense

Timing Data

Memory

Timing Data

Memory

Formatter

De-Skew

Central PMU

DAC

ADC

DAC

ADC

Guard Amp

Driven Shield

Device Power supply

AD5522

Figure 20. Typical Applications Circuit using the AD5522 as a per pin parametric unit.

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