The MAX9949/MAX9950 dual parametric measurementunits (PMUs) feature a small package size, wide forceand measurement range, and high accuracy, making thedevices ideal for automatic test equipment (ATE) andother instrumentation that requires a PMU per pin or persite.The MAX9949/MAX9950 force or measure voltages inthe -2V to +7V through -7V to +13V ranges, dependentupon the supply voltage (VCC and VEE). The deviceshandle supply voltages of up to +30V (VCC to VEE) anda 20V device under test (DUT) voltage swing at full current.The MAX9949/MAX9950 also force or measurecurrents up to ±25mA with a lowest full-scale range of±2μA. Integrated support circuitry facilitates use of anexternal buffer amplifier for current ranges greater than±25mA.A voltage proportional to the measured output voltageor current is provided at the MSR_ output. Integratedcomparators, with externally set voltage thresholds, providedetection for both voltage and current levels. TheMSR_ and comparator outputs can be placed in a high-Z state. Integrated voltage clamps limit the force outputto levels set externally. The force-current or the measure-current voltage can be offset -0.2V to +4.4V (IOS).This feature allows for the centering of the control ormeasured signal within the external DAC or ADC range.The MAX9949D/MAX9950D feature an integrated 10kΩforce-sense resistor between FORCE_ and SENSE_.The MAX9949F/MAX9950F have no internal force-senseresistor. These devices are available in a 64-pin 10mm x10mm, 0.5mm pitch TQFP package with an exposed8mm x 8mm die pad on the top (MAX9949) or the bottom(MAX9950) of the package for efficient heat removal. Theexposed paddle is internally connected to VEE. TheMAX9949/MAX9950 are specified over the commercial(0°C to +70°C) temperature range.ApplicationsMemory TestersVLSI TestersSystem-on-a-Chip TestersStructural Testers
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