General Description

The MAX9951/MAX9952 dual parametric measurement

units (PMUs) feature a small package size, wide force and

measurement range, and high accuracy, making the

devices ideal for automatic test equipment (ATE) and other

instrumentation that requires a PMU per pin or per site.

The MAX9951/MAX9952 force or measure voltages in the

-2V to +7V through -7V to +13V ranges, dependent upon

device-under-test (DUT) voltage swing at full current. The

MAX9951/MAX9952 also force or measure currents up to

±64mA with a lowest full-scale range of ±2µA. Integrated

support circuitry facilitates use of an external buffer ampli-

fier for current ranges greater than ±64mA.

A voltage proportional to the measured output voltage

or current is provided at the MSR_ output. Integrated

comparators, with externally set voltage thresholds,

provide detection for both voltage and current levels.

The MSR_ and comparator outputs can be placed in a

high-impedance state. Separate FORCE and SENSE

connections are short-circuit protected for voltages

also features a low-leakage, high-impedance state.

Integrated voltage clamps limit the force output to lev-

els set externally. The force-current or the measure-cur-

rent voltage can be offset -0.2V to +4.4V (IOS). This

feature allows for the centering of the control or mea-

sured signal within the external DAC or ADC range.

The MAX9951D/MAX9952D feature an integrated 10k

Ω

force-sense resistor between FORCE_ and SENSE_.

The MAX9951F/MAX9952F have no internal force-sense

resistor. These devices are available in a 64-pin, 10mm

x 10mm, 0.5mm pitch TQFP package with an exposed

8mm x 8mm die pad on the top (MAX9951) or the bot-

tom (MAX9952) of the package for efficient heat

removal. The exposed pad is internally connected to

commercial 0°C to +70°C temperature range.

Applications

Memory Testers

VLSI Testers

System-on-a-Chip Testers

Structural Testers

Features

o Force Voltage/Measure Current (FVMI)

o Force Current/Measure Voltage (FIMV)

o Force Voltage/Measure Voltage (FVMV)

o Force Current/Measure Current (FIMI)

o Force Nothing/Measure Voltage (FNMV)

o Force Nothing/Measure Current (FNMI,

Range E Only)

o Termination/Measure Current

o Termination/Measure Voltage

o Five Programmable Current Ranges

±20µA

±20µA

±200µA

±2mA

±64mA

o -2V to +7V Through -7V to +13V Input-Voltage

Range

o Force-Current/Measure-Current Adjustable-

Voltage Offset (IOS)

o Programmable Voltage Clamps at Force Output

o Low-Leakage, High-Impedance Measure, and

Force States

o 3-Wire Serial Interface

o Low 6mA (max) Quiescent Current per PMU

Dual Per-Pin Parametric

Measurement Units

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Maxim Integrated Products

1

Ordering Information

19-3247; Rev 4; 11/09

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

-

Denotes a package containing lead(Pb).

D = Dry pack.

*

EPR = Top side exposed pad.

T = Tape and reel.

**

EP = Exposed pad.

Pin Configurations and Selector Guide appear at end of

data sheet.

PART

TEMP RANGE

PIN-PACKAGE

MAX9951DCCB+D

0°C to +70°C

64 TQFP-EPR*

MAX9951DCCB+TD

0°C to +70°C

64 TQFP-EPR*

MAX9951DCCB-D

0°C to +70°C

64 TQFP-EPR*

MAX9951DCCB-TD

0°C to +70°C

64 TQFP-EPR*

MAX9951FCCB+

0°C to +70°C

64 TQFP-EPR*

MAX9951FCCB+T

0°C to +70°C

64 TQFP-EPR*

MAX9951FCCB-D

0°C to +70°C

64 TQFP-EPR*

MAX9951FCCB-TD

0°C to +70°C

64 TQFP-EPR*

MAX9952DCCB+

0°C to +70°C

64 TQFP-EP**

MAX9952DCCB+T

0°C to +70°C

64 TQFP-EP**

MAX9952DCCB-D

0°C to +70°C

64 TQFP-EP**

MAX9952DCCB-TD

0°C to +70°C

64 TQFP-EP**

MAX9952FCCB+

0°C to +70°C

64 TQFP-EP**

MAX9952FCCB+T

0°C to +70°C

64 TQFP-EP**

MAX9952FCCB-D

0°C to +70°C

64 TQFP-EP**

MAX9952FCCB-TD

0°C to +70°C

64 TQFP-EP**