DIO2240

Version 1.2, Jan 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. Thermal Considerations ..............................................................................................................................3

6. Electrical Characteristics .............................................................................................................................3

7. Typical Characteristics ................................................................................................................................ 5

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

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

9.1. Amplifier input signal ........................................................................................................................ 8

9.2. RSENSE selection ................................................................................................................................8

9.3. Function mode ..................................................................................................................................9

10. Application Information ............................................................................................................................14

10.1. Input filtering .................................................................................................................................14

10.2. Typical application for inline motor current-sensing .....................................................................15

10.3. Typical application for solenoid drive current-sensing ................................................................. 16

11. Layout Guidelines ....................................................................................................................................16

12. Physical Dimensions ...............................................................................................................................17

12.1. TSSOP-8 ...................................................................................................................................... 17

12.2. SOIC-8 ..........................................................................................................................................18

12.3. MSOP-8 ........................................................................................................................................19