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DS2740 Datasheet High-Precision Coulomb Counter

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

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PIN DESCRIPTION OVD- 1-Wire Bus Speed Select PIO - Programmable I/O Pin SNS - Sense Resistor Input IS2 - Current-Sense Input IS1 - Current-Sense Input VSS - Device Ground, Current-Sense Resistor Return DQ - Data Input/Output VDD - Power-Supply Input (2.7V to 5.5V) 1-Wire is a registered trademark of Dallas Semiconductor.

1 of 16 051805 Table 1.

Overview

www.maxim-ic.com.

Key Features

  • 15-Bit Bidirectional Current Measurement (DS2740U).
  • 1.56μV LSB and ±51.2mV Dynamic Range.
  • 78μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS).
  • 156μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS).
  • 13-Bit Bidirectional Current Measurement (DS2740BU).
  • 6.25μV LSB and ±51.2mV Dynamic Range.
  • 312μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS).
  • 625μA LSB and ±5.12A Dynamic Range with External.

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