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MAX14920 - (MAX14920 / MAX14921) High-Accuracy 12-/16-Cell Measurement AFEs

Download the MAX14920 datasheet PDF. This datasheet also covers the MAX14921 variant, as both devices belong to the same (max14920 / max14921) high-accuracy 12-/16-cell measurement afes family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX14920/MAX14921 battery measurement analog front-end devices accurately sample cell voltages and provide level shifting for primary/secondary battery packs up to 16 cells/+65V (max).

The MAX14920 monitors up to 12 cells, while the MAX14921 monitors up to 16 cells.

Key Features

  • S High Accuracy.
  • ±0.5mV (max) Cell Voltage.
  • Simultaneous Cell Voltage Sampling.
  • Self-Calibration S Integrated Diagnostics.
  • Open-Wire and Short Fault Detection.
  • Undervoltage/Overvoltage Warning.
  • Thermal Shutdown S High Flexibility.
  • SPI Interface.
  • 12-Cell and 16-Cell Versions.
  • +6V Minimum (3 Cells) Operation.
  • +0.5V to +4.5V Cell Voltage Range.
  • Integrated Cell-Balancing FET Drivers.
  • Integrated 5V LDO.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX14921_MaximIntegrated.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX14921 (MAX14920 / MAX14921) High-Accuracy 12-/16-Cell Measurement AFEs
MAX14900E Octal Power Switch
MAX14906 Digital I/O
MAX14912 Switch/Push-Pull Driver
MAX14913 Switch/Push-Pull Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
EVALUATION KIT AVAILABLE MAX14920/MAX14921 High-Accuracy 12-/16-Cell Measurement AFEs General Description The MAX14920/MAX14921 battery measurement analog front-end devices accurately sample cell voltages and provide level shifting for primary/secondary battery packs up to 16 cells/+65V (max). The MAX14920 monitors up to 12 cells, while the MAX14921 monitors up to 16 cells. Both devices simultaneously sample all cell voltages, allowing accurate state-of-charge and source-resistance determination. All cell voltages are level shifted to ground reference with unity gain, simplifying external ADC data conversion. The devices have a low-noise, low-offset amplifier that buffers differential voltages of up to +5V, allowing monitoring of all common lithium-ion (Li+) cell technologies.