Analog Devices Inc. EVAL-ADBMS1818 Demonstration Circuit

Analog Devices Inc. EVAL-ADBMS1818 Demonstration Circuit features the ADBMS1818 18-Cell Battery Monitor. The ADBMS1818 18-Cell Battery Monitors measures up to 18 series-connected battery cells with a total measurement error of less than 3mV. A 2-wire isolated serial interface (isoSPI) can link multiple boards to monitor any number of cells in a stack. The EVAL-ADBMS1818 Demonstration Circuit also provides a reversible isoSPI enabling a fully redundant communication path.

The ADI EVAL-ADBMS1818 Demonstration Circuit communicates to a PC by connecting directly to a DC2026 Linduino® One. The DC2026 must be loaded with the appropriate program (called a “sketch”) to control the battery stack monitor IC and receive data through a USB serial port. The DC2792/DC1941 can be connected to the DC2026 to provide a fully isolated isoSPI interface to the EVAL_ADBMS1818.


  • Measures up to 18 battery cells in series
  • 3mV Maximum total measurement error
  • Stackable architecture for high voltage systems
  • Built-In isoSPI™ interface
  • 1Mb Isolated serial communications
  • Uses a single twisted pair, up to 100 meters
  • Low EMI susceptibility and emissions
  • Bidirectional for broken wire protection
  • 290µs to measure all cells in a system
  • Synchronized voltage and current measurement
  • 16-Bit Delta-Sigma ADC with programmable 3rd order noise filter
  • Passive cell balancing up to 200mA (max) with programmable pulse-width modulation
  • 9 General purpose digital I/O or analog inputs
  • Temperature or other sensor inputs
  • Configurable as an I2C or SPI master
  • 6µA Sleep mode supply current
  • 64-Lead eLQFP package

Required Equipment

  • PC with USB port
  • DC2026 Linduino board
  • USB cable to connect PC to Linduino
  • 14-wire SPI demo board ribbon cable to connect to Linduino (optional)
  • 2 isoSPI twisted-pair patch cords to connect DC2972B to isoSPI BMS demo(s)
  • Software that controls one or two isoSPI channels (usually intended for demonstrating isoSPI BMS products)


Analog Devices Inc. EVAL-ADBMS1818 Demonstration Circuit
Publicado: 2021-03-16 | Actualizado: 2022-03-11