Datasheet Analog Devices LTC2945CUD#PBF — 数据表

LTC2945
Wide Range
I2C Power Monitor
FEATURES n n n n n n n n n n n n n DESCRIPTION Rail-to-Rail Input Range: 0V to 80V
Wide Input Supply Range: 2.7V to 80V
Shunt Regulator for Supplies >80V
Δ∑ ADC with less than ±0.75% Total Unadjusted Error
12-Bit Resolution for Current and Voltages
Internal Multiplier Calculates 24-Bit Power Value
Stores Minimum and Maximum Values
Alerts When Limits Exceeded
Additional ADC Input Monitors an External Voltage
Continuous Scan and Snapshot Modes
Shutdown Mode with IQ < 80µA
Split SDA for Opto-Isolation
Available in 12-Lead 3mm × 3mm QFN and MSOP
Packages The LTC®2945 is a rail-to-rail system monitor that measures current, voltage, and power. It features an operating
range of 2.7V to 80V and includes a shunt regulator for
supplies above 80V to allow flexibility in the selection of
input supply. The current measurement range of 0V to
80V is independent of the input supply. An onboard 0.75%
accurate 12-bit ADC measures load current, input voltage
and an auxiliary external voltage. A 24-bit power value is …