Features and Benefits

  • Low Offset Voltage: 50µV max
  • Low Noise Voltage at 100 Hz,
    1 mA:1.0 nV/√Hz max
  • High Gain (hFE):
    500 min at IC = 1 mA
    300 min at IC = 1 µA
  • Excellent Log Conformance:
  • rBE about = 0.3 Ohms
  • Low Offset Voltage Drift
  • Improved Direct Replacement for LM194

Product Details

The design of the MAT02 series of NPN dual monolithic transistors is optimized for very low noise, low drift, and low rBE. ADI's exclusive Silicon Nitride "Triple Passivation" process stabilizes the critical device parameters over wide ranges of temperature and elapsed time. Also, the high current gain (hFE) of the MAT02 is maintained over a wide range of collector current. Exceptional characteristics of the MAT02 include offset voltage of 50µV max. Device performance is specified over the full military temperature range.

Input protection diodes are provided across the emitter-base junctions to prevent degredation of the device characteristics due to reversed-biased emitter current. The substrate is clamped to the most negative emitter by the parasitic isolation junction created by the protection diodes. This results in complete isolation between the transistors.

The MAT02 should be used in any application where low noise is priority. The MAT02 can be used as an input stage to make an amplifier with noise voltage of less than 1.0nV/Hz at 100 HZ. Other applications such as log/anti-log circuits, may use the excellent logging conformity of the MAT02. Typical bulk resistance is only 0.3 Ohm to 0.4 Ohm. The MAT02 electrical characteristics approach those of an ideal transistor when operated over a collector current range of 1µA to 10mA.

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information


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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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