MAX3097EESE+

Overview

The MAX3097EESE+ is a triple RS-485/RS-422 receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3V to +5.5V supply and supports data rates up to 32Mbps. The device features fault-detection circuitry with independent alarm outputs for each channel and a delayed general fault output. It provides ±15kV ESD protection via Human Body Model, ±15kV IEC 1000-4-2 Air-Gap Discharge, and ±8kV Contact Discharge. The extended common-mode range spans from -10V to +13.2V. It is housed in a 16-pin QSOP package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Detects open-circuit conditions, short-circuit conditions, low differential voltage signals, and common-mode range violations.
• Includes capacitor-programmable delay for the ALARMD output to prevent erroneous fault indications at slow edge rates.
• Provides independent universal fault outputs (ALARMA, ALARMB, ALARMZ) alongside a combined delayed fault output.

Applications

• Motor-shaft encoder receivers
• High-speed telecommunications systems
• Embedded systems requiring robust fault detection

Procurement Notes

Verify the specific ordering suffix EESE+ corresponds to the -40°C to +85°C temperature range and 16-pin SOIC package. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing motor control loops that require high-speed signal reception with integrated fault monitoring. Ensure the application environment necessitates the specified extended common-mode voltage range and ESD protection levels.

Part Context

This part belongs to the MAX3097E/MAX3098E family of triple RS-485/RS-422 receivers. The MAX3097E variant specifically includes fault detection circuitry, whereas the MAX3098E variant offers enhanced fault thresholds for different signal integrity requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

FAQ

How is the delay time for the ALARMD output configured?

The delay time is set by connecting a single external capacitor between the DELAY pin and GND. The duration depends on the supply voltage and capacitance value.

What happens to the receiver output if a fault condition occurs?

When a fault is detected, the corresponding ALARM_ output goes high, and the associated receiver output (OUT_) becomes indeterminate.

Does the device include transmitter drivers?

No, the MAX3097EESE+ contains only three receivers and does not include any driver circuitry.