MAX12931BASA+T

Digital Isolators Overview

The MAX12931BASA+T is a two-channel digital galvanic isolator utilizing Maxim's proprietary capacitive coupling technology. It provides bidirectional signal isolation with a rated insulation voltage of 3750Vrms. The device supports data rates up to 25 Mb/s and features a typical common-mode transient immunity of 50 kV/µs. Operating on a single supply voltage ranging from 1.71 V to 5.5 V, it draws a maximum quiescent current of 4.21 mA per channel. Packaged in an 8-SOIC surface-mount format, it ensures reliable operation across an extended temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Proprietary capacitive coupling technology for robust signal isolation
• High common-mode transient immunity of 50 kV/µs
• Low-power operation with minimal quiescent current consumption
• Wide operating supply voltage range supporting multiple logic domains

Digital Isolators Applications

• Industrial process control systems requiring galvanic isolation
• Medical equipment needing high-reliability signal barriers
• Isolated communication interfaces between different voltage domains
• Power management circuits with mixed-signal requirements

Digital Isolators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the 3750Vrms rating aligns with safety standards required for the target application. Ensure the SOIC-8 footprint matches the PCB layout constraints. Check for RoHS compliance status if environmental regulations apply. Validate the operating temperature range against the intended environment.

Digital Isolators Selection Notes

Select this component for applications requiring moderate data rates up to 25 Mb/s with high isolation voltage. Consider the 8-SOIC package size for space-constrained designs. Evaluate the 50 kV/µs CMTI specification against noise levels in the system. Compare power consumption requirements against other isolator families. Ensure compatibility with input/output logic levels within the 1.71 V to 5.5 V range.

Digital Isolators Part Context

This part belongs to the MAX12930/MAX12931 family of digital isolators. These devices are designed for general-purpose isolation tasks. They replace optocouplers in many applications due to smaller size and lower power. The family includes variants with different data rates and insulation ratings.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers: MAX12931BASA+, MAX12931FASA+. Verify pinout compatibility and electrical specifications before substitution.