INA302

Product Folder Order Now Technical Documents Tools & Software Support & Community INA302, INA303 SBOS775C – SEPTEMBER 2016 – REVISED MARCH 2019 INA30x 36-V, Overcurrent Protection, Precision, Current-Sense Amplifiers With Dual Integrated Comparators 1 Features 1 Wide common-mode input range: –0.1 V to +36 V Dual comparator outputs: – INA302: Two independent overlimit alerts – INA303: Window comparator – Threshold levels set individually – Comparator 1 alert response: 1 µs – Comparator 2 adjustable delay: 2 µs to 10 s – Open-drain outputs with independent latch control modes High accuracy amplifier: – Offset voltage: 30 µV (max, A3 version) – Offset voltage drift: 0.5 µV/°C (max) – Gain error: 0.15% (max, A3 version) – Gain error drift: 10 ppm/°C Available amplifier gains: – INA302A1, INA303A1: 20 V/V – INA302A2, INA303A2: 50 V/V – INA302A3, INA303A3: 100 V/V 2 Applications Overcurrent protection Motor control Power-supply protection Computers and servers Telecom equipment 3 Description The INA302 and INA303 (INA30x) devices feature a high common-mode, bidirectional, current-sensing amplifier and two high-speed comparators to detect out-of-range current conditions. The INA302 comparators are configured to detect and respond to overcurrent conditions. The INA303 comparators are configured to respond to both overcurrent and undercurrent conditions in a windowed configuration. These devices feature an adjustable limit threshold range for each comparator se...