DIO2186

Version 1.0, Apr 2026

www.dioo.com

© 2026 Dioo Microcircuits Co., Ltd. Jiangsu

III

Table of Contents

1. Pin Assignment and Functions ....................................................................................................................1

2. Absolute Maximum Ratings ........................................................................................................................ 2

3. Recommended Operating Conditions .........................................................................................................2

4. ESD Ratings ................................................................................................................................................2

5. Electrical Characteristics .............................................................................................................................3

6. Typical Characteristics ................................................................................................................................ 6

7. Block Diagram .............................................................................................................................................7

8. Function Description ................................................................................................................................... 8

8.1. High-precision current measurement ...............................................................................................8

8.2. Low input bias current...................................................................................................................... 8

8.3. Low quiescent current...................................................................................................................... 8

8.4. Bidirectional current monitoring ........................................................................................................8

8.5. High-side and low-side current sensing ........................................................................................... 9

8.6. High common-mode rejection .......................................................................................................... 9

8.7. Rail-to-rail output swing ....................................................................................................................9

8.8. Device functional modes .................................................................................................................. 9

9. Application Information ..............................................................................................................................12

9.1. Basic connections .......................................................................................................................... 12

9.2. RShunt and device gain selection ..................................................................................................... 12

9.3. Signal conditioning ......................................................................................................................... 13

9.4. Common-mode voltage transients ................................................................................................. 14

9.5. Typical applications ........................................................................................................................ 15

9.6. Design requirements ...................................................................................................................... 16

10. Physical Dimensions ...............................................................................................................................18

10.1. SC70-6 ......................................................................................................................................... 18

10.2. SOT23-5....................................................................................................................................... 19

10.3. WLCSP-6 ......................................................................................................................................20