Maxim Integrated MAX14932BASE+, General Purpose digital isolator, 4 channels, 25Mbps data rate, capacitive coupling, 2750Vrms isolation, 16-SOIC package, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Type | General Purpose |
| Channel type | Unidirectional |
| Mounting | Surface Mount |
| Supply voltage | 1.71V ~ 5.5V |
| Voltage - isolation | 2750Vrms |
| Isolated power | No |
| Operating temperature | -40°C ~ 125°C |
| Pulse width distortion | 2.6ns |
| Package | Tube |
| Data rate | 25Mbps |
| Technology | Capacitive Coupling |
| Case | 16-SOIC (0.154\", 3.90mm Width) |
| Channels | 4 |
| Inputs - side 1/Side 2 | 2/2 |
| Rise (Fall time) | 2ns, 2ns |
| Propagation delay tpLH (tpHL) | 27.5ns, 28.8ns |
| Common mode transient immunity | 25kV/µs (Typ) |
It provides galvanic isolation up to 2750Vrms between two sides of a circuit, with a data rate of 25Mbps. Typical applications include isolating SPI, UART, or general-purpose digital signals in industrial automation, motor drives, power supplies, and medical equipment where noise immunity and safety isolation are required.
The 25Mbps data rate handles most common serial interfaces. The 2750Vrms isolation rating is typical for reinforced isolation in industrial environments.
Yes, the MAX14932BASE+ is ROHS3 compliant.
I2C is a bidirectional open-drain bus, and the MAX14932BASE+ has unidirectional channels. For I2C isolation you need a part with bidirectional channels or external circuitry to handle the bus direction. This part is better suited for SPI, UART, or GPIO isolation.
The pinout follows the standard 16-SOIC layout for Maxim's 4-channel isolators. Side 1 inputs are on pins 2 and 3; side 2 inputs on pins 10 and 11. Outputs are on the opposite sides. Refer to the datasheet for the full pin map.