LTC2943 Multicell Battery Gas Gauges

Analog Devices Inc. LTC2943 Multicell Battery Gas Gauges can measure battery charge state, voltage, current, and temperature in portable product applications. The LTC2943 from Analog Devices has a wide input voltage range that allows use with multicell batteries up to 20V. A precision coulomb counter integrates current through a sense resistor between the battery's positive terminal and the load or charger. Voltage, current, and temperature are measured with an internal 14-bit No Latency ΔΣ™ ADC. The measurements are stored in internal registers accessible via the onboard I²C/SMBus Interface.