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ISO1540DR
DGTL ISOLTR 2.5KV 2CH I2C 8-SOIC
Texas Instruments
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Design a Custom BoardAbout This Component
Dual-channel digital isolator with 2.5 kV galvanic isolation rating in 8-pin SOIC package. Designed for I2C communication isolation between circuits at different potentials. Provides electromagnetic immunity and noise filtering while maintaining data integrity across isolated domains.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | ISO1540DR |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Channel Type | Bidirectional |
| Data Rate | 1Mbps |
| Number of Channels | 2 |
| Type | I2C |
| Voltage - Isolation | 2500Vrms |
| Voltage - Supply | 3V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x ISO1540DR soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL