INA225AIDGKT

The INA225AIDGKT is a voltage-output, Current Sense Amplifier, senses drops across current-sensing resistors at common-mode voltages that can vary from 0 to 36V, independent of the supply voltage. The device is a bidirectional, current-shunt monitor that allows an external reference to be used to measure current flowing in both directions across a current-sensing resistor. Four discrete gain levels are selectable using the two gain-select terminals (GS0 and GS1) to program gains of 25, 50, 100 and 200V/V. The low-offset, zero-drift architecture and precision gain values enable current-sensing with maximum drops across the shunt as low as 10mV of full-scale while maintaining very high accuracy measurements over the entire operating temperature range. The device operates from a single +2.7 to +36V power supply, drawing a maximum of 350µA of supply current.

• Wide common-mode voltage range (0 to 36V)
• ±150µV (maximum, all gains) Offset voltage
• 0.5µV/°C Maximum offset voltage drift
• 10ppm/°C Gain drift
• 250kHz Bandwidth (gain = 25V/V)
• G1 = 25V/V, G2 = 50V/V, G3 = 100V/V and G4 = 200V/V Programmable gains
• 350µA Maximum quiescent current
• Green product and no Sb/Br

Applications

Power Management, Motor Drive & Control, Computers & Computer Peripherals, Communications & Networking, Test & Measurement

Warnings

Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.