MAX3098EBCSE+T

Overview

The MAX3098EBCSE+T is a triple RS-422/RS-485 receiver featuring integrated fault-detection circuitry and dedicated fault-status outputs. It operates on a single +3V to +5.5V supply with a maximum data rate of 32Mbps. The device provides ±15kV ESD protection via Human Body Model and IEC 1000-4-2 standards, supporting an extended common-mode range from -10V to +13.2V. It detects open-circuit, short-circuit, low differential voltage, and common-mode violations. The part utilizes a 16-pin SO package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Detects open-circuit, short-circuit, low differential voltage, and common-mode range violations
• Provides independent alarm outputs for each receiver channel plus a delayed universal fault output
• Features capacitor-programmable delay to prevent erroneous fault indications at slow edge rates
• Offers ±15kV ESD protection compatible with IEC 1000-4-2 standards

Applications

• Motor-shaft encoder receivers
• High-speed triple RS-485/RS-422 receiver systems
• Telecommunications equipment
• Embedded systems requiring robust fault detection

Procurement Notes

Verify the specific suffix 'BCSE' against official documentation to confirm the exact package type (SO) and commercial temperature range (0°C to +70°C). Ensure the ordering information matches the required environmental specifications for the target application before procurement.

Selection Notes

Select this component when designing motor control feedback loops that require simultaneous monitoring of three differential channels. The built-in fault detection eliminates the need for external monitoring circuits, simplifying the design for industrial environments where signal integrity is critical.

Part Context

This device belongs to the MAX3097E/MAX3098E family of high-speed receivers designed specifically for absolute positioning control loops in motor applications. It shares core functionality with the MAX3097E but differs in specific fault threshold characteristics defined by its grade.

Replacement Considerations

MAX3098EBESE+T: Identical electrical performance and fault detection features housed in a 16-pin QSOP package instead of SO.

FAQ

How does the MAX3098E detect an open-circuit condition?

It relies on a terminating resistor across the input pair; if a wire drops out, the inputs pull to the same potential, causing the differential voltage to fall below the fault threshold.

What determines the delay time for the ALARMD output?

The delay time is set by connecting a single external capacitor between the DELAY pin and GND, allowing transient faults to be ignored based on the capacitance value.

Can the MAX3098E operate without additional ESD protection components?

Yes, the device incorporates state-of-the-art ESD structures capable of withstanding ±15kV HBM and Level 4 IEC 1000-4-2 tests without damage or latchup.