MAX49918 - Analog Devices

MAX49918 Current-Sense Amplifier

The MAX49918 is a high-precision current-sense amplifier (CSA) with an I2C programmable gain option from 10V/V to 200V/V in 8 steps. The multiple programmable gain options offer maximum flexibility for the user to change gain on-the-fly. The IC operating input common-mode range from -5V to +70V, with protections that extend down to -6V and up to +80V, thus p.

Features

bidirectional current sensing and is offered in a 3mm x 3mm, 10-pin TDFN package. Applications
• Monitoring Distinct Current Levels
• Using the Same Current-Sense Resistors Across Multiple System Variants
• Requires a Non-Typical Gain Value Due to Sense Resistor Constraints
• H-Bridge Motor and Solenoid Current Sensing
• Battery Current Monitoring
• High- and Low-Side Precision Current Sensing Benefits and Features
• Programmable Gain Options through I2C from 10V/V to 200V/V (8 steps)
• ±1μV (typ) Input Offset Voltage for REF1 = REF2 = VDD/2
• ±5μV (typ) Input Offset Voltage for REF1 = VDD an.