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DIA2186CSC6 Datasheet(PDF) 1 Page - DIOO MICROCIRCUITS CO., LTD |
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DIA2186CSC6 Datasheet(HTML) 1 Page - DIOO MICROCIRCUITS CO., LTD |
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1 / 24 page  DIA2186 Version 1.0, Apr 2026 www.dioo.com © 2026 Dioo Microcircuits Co., Ltd. Jiangsu I 40 V, Bidirectional, High-Precision Current Sense Amplifier Features AEC-Q100 qualified − Device ambient temperature: -40°C ≤ TA ≤ 125°C − Device junction temperature: -40°C ≤ TJ ≤ 150°C Supply range: − Single power supply: 2.5 V to 6.0 V − Common-mode range: -2 V to 40 V Low offset voltage: ±3 µV (Typ) Low input bias currents, IB: 1 nA (Typ) Quiescent current: 75 µA (Typ) Accuracy： − Gain error: ±1% (Max) − Offset drift: 0.5 µV/°C (Max) − Offset voltage: ±50 µV (Max) − Gain drift: 10 ppm/°C (Max) Common-mode rejection ratio: 150 dB (Typ) Bidirectional current sensing capability Choice of gain： − DIA2186A: 25 V/V − DIA2186B: 50 V/V − DIA2186C: 100 V/V Input voltage noise: 77 nV/√Hz Applications Body control module (BCM) Telematics control unit Emergency call (eCall) 12 V battery management system (BMS) Automotive head unit Package Information Part Number Package Body Size DIA2186 SC70-6 2.07 mm × 1.26 mm SOT23-5 2.926 mm × 1.626 mm Description The DIA2186 is a bidirectional and high-precision voltage output current sense amplifier designed to meet the stringent AEC-Q100 standard. It can be used as high side or low side current monitor in automotive electronics. The DIA2186 sense drops across shunts independent of the supply voltage. This device supports common-mode inputs from -2 V to 40 V, making it ideal for current sensing of inductive loads in automotive applications. The DIA2186 boasts an ultra-low input bias current of only 1 nA that enables the use of larger shunt resistors, providing accurate current measurements even in the micro-amp range. Its high-precision performance includes a low offset voltage and gain error less than ±1%. The DIA2186 operates from a single 2.5 V to 6.0 V power supply. With bidirectional current sensing capability, DIA2186 offers three fixed gain options: 25 V/V, 50 V/V, 100 V/V. The devices are specified over ambient temperature range from -40°C to 125°C, which makes it a perfect solution for automotive applications. Simplified Schematic |
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