Analogue chips double battery life

Analogue chips double battery life

New Products |
By Nick Flaherty

Maxim Integrated has launched three analogue chips to double the battery life of designs for the internet of things (IoT), industrial and healthcare applications.

When designing IoT and battery-operated sensors, engineers must develop systems that provide longer battery life while accurately measuring real-world voltages, forces and pressures. Power budgets require these sensors to achieve precision on the first measurement, with little to no calibration. Furthermore, industrial and internet of things (IoT) applications require these sensors to withstand extreme physical conditions of temperature, humidity and mechanical abuse.

The MAX41400 instrumentation amplifier enhances sensor system accuracy by 4x and extends battery life by 55 percent compared to other devices. The MAX41400 provides low offset of 25µV, low noise and programmable gain with only 65µA current consumption. In battery-operated industrial sensors, the IA extends battery life from existing 7.4 hours to 11.5 hours compared to the closest competitive offering.

The MAX40108 is the lowest-voltage precision operational amplifier in its class, operating with supplies as low as 0.9V. The combination of low operational supply voltage, lower power consumption and 25.5µA quiescent current allows engineers to double sensor battery life.

The MAX31343 I²C RTC with integrated MEMS oscillator provides timekeeping accuracy of ±5ppm, substantially better than the closest competitor, plus robust protection afforded by a MEMS resonator. This guarantees <3min deviation per year and can be used with the MAX41400 amplifier to boost sensor system accuracy by up to two effective bits with a combination of low offset, low noise and integrated programmable gain.

The integrated resonator in the MAX31343 eliminates crystal mechanical failures and enables the smallest wafer scale WLP packaging compared to any other competitor in the market.  The MAX31343 also provides shock resistance of >2900G and vibration resistance of >50G.

“These three products represent the best in our Essential Analog offering,” said Vickram Vathulya, vice president of Core Products Group at Maxim Integrated. “Maxim’s mission continues to be providing engineers the finest products to sense and interface with the analog world. These solutions provide superb accuracy and low power consumption for the most demanding sensor applications.”

The MAX41400 is available at Maxim Integrated’s website for $0.87, the MAX40108 for $0.99 and the MAX31343 for $1.72. Evaluation kits for all three are available. The parts will be on show at the virtual Embedded World exhibition next month.

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