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.

Notes

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.