GENERAL DESCRIPTION

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.

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