Datasheet Texas Instruments INA223 — 数据表

INA223
www.ti.com SBOS528 – JUNE 2012 Analog Output Current Shunt and Voltage
Instantaneous Power Monitor
Check for Samples: INA223 FEATURES DESCRIPTION The INA223 is a voltage-output device that monitors
the current, bus voltage, and power of a supply line
by sensing a voltage drop across a shunt at commonmode voltages from 0 V to 26 V. The common-mode
voltage range is independent of the supply voltage.
The low offset of the ZerГё-Drift architecture enables
current sensing with maximum drops across the
shunt as low as 10 mV, full-scale. 1 23 Wide Common-Mode Range: 0 V to 26 V
В±100 ВµV Offset (Max, Gain = 300 V/V)
Accuracy
– ±0.25% Shunt Voltage Gain Error (Max)
– ±0.15% Bus Voltage Gain Error (Max)
– 1.25% Power Error (Max)
– 0.3 μV/°C Offset Drift (Max)
– 50 ppm/°C Gain Drift (Max)
Programmable Gains
– Current Shunt Voltage Gains: 20, 128, 300
– Bus Voltage Attenuations: 1/10, 1/5, 2/5
Monitors/Measures/Reports:
– Instantaneous Power
– Bus Voltage …