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Dual Per-Pin Parametric Measurement Units

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Force Voltage/Measure Current (FVMI)
  • Force Current/Measure Voltage (FIMV)
  • Force Voltage/Measure Voltage (FVMV)
  • Force Current/Measure Current (FIMI)
  • Force Nothing/Measure Voltage (FNMV)
  • Five Programmable Current Ranges
    • ±2µA
    • ±20µA
    • ±200µA
    • ±2mA
    • ±25mA
  • -2V to +7V Through -7V to +13V Input Voltage Range and Higher (Up to 20V Voltage Swing at Full Current)
  • Force-Current/Measure-Current Voltage Offset (IOS)
  • Programmable Voltage Clamps for the Force Output
  • Low-Leakage, High-Z Measure State
  • 3-Wire Serial Interface
  • Low Power, 8mA (max) per PMU

Applications/Uses

  • Memory Testers
  • Structural Testers
  • System-on-a-Chip Testers
  • VLSI Testers

Description

The MAX9949/MAX9950 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 MAX9949/MAX9950 force or measure voltages in the -2V to +7V through -7V to +13V ranges, dependent upon the supply voltage (VCC and VEE). The devices handle supply voltages of up to +30V (VCC to VEE) and a 20V device under test (DUT) voltage swing at full current. The MAX9949/MAX9950 also force or measure currents up to ±25mA with a lowest full-scale range of ±2µA. Integrated support circuitry facilitates use of an external buffer amplifier for current ranges greater than ±25mA.

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. Integrated voltage clamps limit the force output to 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 or measured signal within the external DAC or ADC range.

The MAX9949D/MAX9950D feature an integrated 10kΩ force-sense resistor between FORCE_ and SENSE_. The MAX9949F/MAX9950F 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 (MAX9949) or the bottom (MAX9950) of the package for efficient heat removal. The exposed paddle is internally connected to VEE. The MAX9949/MAX9950 are specified over the commercial (0°C to +70°C) temperature range.

Simplified Block Diagram

MAX9949: Pin Configuration MAX9949: Pin Configuration Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.