INA180A1IDBVR

The INA180, INA2180, and INA4180 (INAx180) current sense amplifiers are designed for cost-optimized applications. These devices are part of a family of current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from -0.2 V to +26 V, independent of the supply voltage. The INAx180 integrate a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift. All these devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA180 draws a maximum supply current of 260 μA; whereas, the dual-channel INA2180 draws a maximum supply current of 500 μA, and the quad channel draws a maximum supply current of 900 μA. All device options are specified over the extended operating temperature range of -40°C to +125°C.

Applications

• Motor control
• Battery monitoring
• Power management
• Lighting control
• Overcurrent detection
• Solar inverters

Key features

• Common-mode range (VCM): -0.2 V to +26 V
• High bandwidth: 350 kHz (A1 devices)
• Offset voltage: ±150 μV (max) at VCM = 0 V; ±500 μV (max) at VCM = 12 V
• Output slew rate: 2 V/μs
• Accuracy: ±1% gain error (max); 1-μV/°C offset drift (max)
• Gain options: 20 V/V (A1 devices); 50 V/V (A2 devices); 100 V/V (A3 devices); 200 V/V (A4 devices)
• Quiescent current: 260 μA max (INA180)