Overview

Features and Benefits

  • 16-Bit Bidirectional Current Measurement
    • 1.56µV LSB, ±51.2mV Dynamic Range
    • 104µA LSB, ±3.4A Dynamic Range (RSNS = 15mΩ)
  • Current Accumulation Register Resolution
    • 6.25µVhr LSB, ±204.8mVh Range
    • 0.417mAhr LSB, ±13.65Ah Range (RSNS = 15mΩ)
  • 11-Bit Voltage Measurement
  • 4.88mV LSB, 0V to 5V Input Range
  • 11-Bit Temperature Measurement
  • 0.125°C Resolution, -20°C to +70°C
  • Industry Standard I²C Interface
  • Low Power Consumption:
    • Active Current: 70µA typical, 100µA max
    • Sleep Current: 1µA typical, 3µA max

Product Details

The DS2745 remains in production, however, for new projects, we recommend ModelGauge m5 MAX17055 fuel gauge.

The DS2745 provides current-flow, voltage, and temperature measurement data to support battery-capacity monitoring in cost-sensitive applications. The DS2745 can be mounted on either the host side or pack side of the application. Current measurement and coulomb counting is accomplished by monitoring the voltage drop across an external sense resistor, voltage measurement is accomplished through a separate voltage-sense input, and temperature measurement takes place on-chip. A standard I²C interface with software programmable address gives the controlling microprocessor access to all data and status registers inside the DS2745. A low-power sleep mode state conserves energy when the cell pack is in storage.

Applications

  • Cellular
  • GPS
  • Handheld Products
  • PDAs

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

Software Development

Product Recommendations

DS2745 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Sample & Buy


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Price Table Help

 

Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.