Bipolar Analog Voltage Output (H15R0x)


SKU: H15R00 Category:

Bipolar 10V, 12-bit Analog Voltage Output

Stage: Alpha

4 in stock


H15R0x is an industrial analog voltage output module with 12-bit resolution and +/-10V bipolar output based on Texas Instruments OPA188 precision, zero-drift operational amplifier and the internal 12-bit DAC of STM32F0 MCU.

  • Easy-to-use and compact analog voltage output from 0 to 10V or -10v to +10V.
  • 12-bit resolution, i.e., 5mV resolution for bipolar range and 2.5mV resolution for unipolar range. Range adjustable by software.
  • Accepts bipolar power supply (+/-15V or lower). You can use Hexabitz Isolated Bipolar +/-15V DC Power Supply module.
  • Low offset voltage: 25 μV (maximum) and zero drift: 0.03 μV/°C. Can be used as precision voltage reference or low-power power supply.
  • Use this module with Hexabitz sensor modules to create industrial voltage-output sensors.
  • Program advanced C code using our easy-to-use APIs and messaging system.
  • Use separately or combine with other Hexabitz modules and external hardware.



  • Texas Instruments OPA188 precision, zero-drift, Rail-to-Rail Output operational amplifier:
    • Low offset voltage: 25 μV (maximum)
    • Near zero drift over time and temperature: 0.03 μV/°C
    • Low noise: 8.8 nV/√Hz
    • Excellent dc precision:
      • PSRR: 142 dB
      • CMRR: 146 dB
      • Open-loop gain: 136 dB
    • Gain bandwidth: 2 MHz
    • Wide supply range: ±2 V to ±18 V
  • Bipolar power input up to +/-18V.
  • 3.5mm, 2-pin terminal block connector for Analog Output (GND, +/-10V).
  • 3.5mm, 3-pin terminal block connector for Power Input (GND, +15V, -15V).
  • 12-bit resolution, i.e., 5mV resolution for bipolar range and 2.5mV resolution for unipolar range.


  • STM32F091CBU6 32-bit ARM Cortex-M0 MCU.
  • 8MHz external oscillator.
  • Four array ports and six power ports (+3.3V and GND).
  • Access to 4xUART, 2xI2C, SWD, BOOT0, RESET.

Physical Properties

  • Shape: Hexagon
  • Size: 30 mm short diagonal, 17.32 mm side
  • Area: 7.8 cm^2
  • Weight: 6 g
  • Soldermask Color: Dark green
  • Surface Finish: ENIG (gold) or HASL-LF (tin)

Bill of Materials

H15R00 BOM



Frequently Asked Questions

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  • Schematics (PDF)
  • Hardware Design Files (Eagle)
  • Source Code (GitHub). Download a pre-compiled firmware HEX file here.
  • Documentation / Factsheet (PDF)
  • Projects & Examples: Please check our account on for demo projects and examples.