M37N - Mezzanine Card with 4 Analog Outputs, 16 Bits

The mezzanine card M37N is a high-precision M-Module with four analog voltage, or alternatively current output channels for very fast signals. The output voltage range for each channel is -10 to +10 V. The current outputs are separately available and canbe used as 0 to 20 mA outputs. The M-Module comes with 16 bits resolution at an ultra-high voltage accuracy of +/-0.1% which is valid for the complete temperature range from -40 to +85°C. Beyond that it is optionally possible to even extend these values by additional calibration.

The M37N supports a load resistance of 600 Ohms and more. The isolated supply voltages can be generated on the board by two low-noise DC/DC converters. The output load is driven to ground.

The M37N is designed for a large range of applications, for example in an automated test environment, in process control systems or for sensor measurements.

The M37N is based on the M-Module ANSI mezzanine standard. It can be used as an I/O extension in any type of bus system, i.e. CPCI, VME or on any type of stand-alone SBC. Appropriate M-Module carrier cards in 3U, 6U and other formats are available from MEN or other manufacturers.


  • 4 current or voltage outputs
  • 16 bits resolution
  • 8.5 µs max. acquisition/conversion time
  • +/-0.1% accuracy
  • Simultaneous channel update
  • Synchronization with external trigger
  • Electrical isolation
  • -40 °C to +85 °C


D/A Conversion
  • 4 channels current or voltage output
  • 16 bits
  • Conversion time of D/A converter: <10.5µs
  • Time between trigger activation and new valid output voltage: <20µs
  • Output linearity: ±1LSB
  • Simultaneous updating of all channels
  • Synchronization with external trigger
  • Electrically isolated (500V DC isolation)
Voltage Output
  • Output current: ±6mA max.
  • Accuracy: ±0.1% (for whole temperature range)
  • Voltage range: -10V..+10V
Current Output
  • Accuracy: ±0.5% (for whole temperature range)
  • Current range: 0..20mA
  • Max. load resistance: 600 Ohm (or higher with external power supply)
Peripheral Connections
  • Via front panel on a shielded 25-pin D-Sub receptacle connector
  • Via carrier board (rear I/O)
M-Module Characteristics
Electrical Specifications
  • Isolation voltage: 500V DC
  • Supply voltage/power consumption:
    • Through M-Module-carrier with onboard DC/DC converter: +5V (4.85V..5.25V), 270mA typ., 620mA max.
    • Optional supply current for current transmitters 100 mA typ.
  • MTBF: 1,012,625h @ 40°C according to IEC/TR 62380 (RDF 2000)
Mechanical Specifications
  • Dimensions: conforming to M-Module Standard
  • Weight: 90g
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Airflow: min. 10m³/h
  • Temperature range (storage): -40..+85°C
  • Relative humidity range (operation): max. 95% non-condensing
  • Relative humidity range (storage): max. 95% non-condensing
  • Altitude: -300m to + 3,000m
  • Shock: 15g/11ms (according to EN60068-2-27)
  • Bump: 10g/16ms (according to EN60068-2-29)
  • Vibration (sinusoidal): 2g/10..150Hz (according to EN60068-2-6)
  • Conformal coating on request
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
Tested according to EN55022 Class A (radio disturbance), EN61000-4-2 (ESD) and EN61000-4-4 (burst)
Software Support