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News
30A Supply Monitor with Integrated 300µΩ Sense Resistor Simplifies Board Level Energy Measurements
2016-09-02 | ReturnThree integrated ΔΣ ADCs and an internal or external precision time base (crystal or clock) enable accurate measurement of multiple parameters, including current, voltage, power, charge, energy, temperature and time. All digital readings, including minimum and maximum values, are stored in registers accessible by a selectable I2C or SPI interface. An alert signal notifies the host when measurements exceed configurable warning thresholds, eliminating burdensome polling. The LTC2947 provides access to all the necessary parameters to accurately assess and manage board level energy consumption, and its rail-to-rail operating range is ideal for monitoring current levels during short-circuit or blackout situations without additional circuitry.
Specified over the commercial and industrial temperature ranges, the LTC2947 is offered in a 32-lead 4mm x 6mm QFN package. 1,000-piece pricing starts at $5.95 each. Device samples and evaluation circuit boards are available online or from your local Linear Technology sales office. For more information, visit www.linear.com/products/power_monitors.
Summary of Features: LTC2947
1. ±30A Current Range with 300μΩ Integrated Sense Resistor
2. Monitors Current (1.0%), Voltage (0.5%), Power (1.2%), Charge (1.0%), Energy (1.2%)
3. 0V to 15V Rail-to-Rail Input Range
4. Three ΔΣ ADCs for Instantaneous Multiplication of Voltage & Current
5. Internal ±1% or External Time Bases
6. Continuous Scan & Snapshot Modes
7. Maximum & Minimum Value Tracking
8. I2C or SPI Configurable Interface
9. 32-Lead 4mm x 6mm QFN Package
Pricing shown is for budgetary use only and may differ due to local duties, taxes, fees and exchange rates.
Source:http://www.linear.com/