Linear Technology Corporation has introduced its new energy monitor called the LTC2946. This monitor has “an integrated ±0.4% accurate, 12-bit ADC and external precision time base (crystal or clock) enables measurement accuracy better than ±0.6% for current and charge, and ±1% for power and energy. A ±5% accurate internal time base substitutes in the absence of an external one.”
“The LTC2946 can be powered from 2.7V to 5V directly, from 4V to 100V through an internal linear regulator or beyond 100V through an internal shunt regulator.” Other features of the LTC2946 include a monitoring range of 0V to 100 V, a 12-bit output, a high or low side charge, a digital interface, high accuracy, shut down mode, warning threshold alerts, and more.
“The LTC2946 is available in two options: the LTC2946 I²C interface has separate SDA input and output pins for standard or opto-isolated I²C, whereas the LTC2946-1 has an inverted SDA output for inverting opto-isolator configurations. Specified over the commercial, industrial, automotive and military temperature ranges, the LTC2946 is offered in 16-pin MSOP and 4mm x 3mm DFN packages,” the company says.