MAX3097EEEE

Overview

The MAX3097EEEE 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 Air-Gap Discharge standards. It detects open-circuit, short-circuit, low differential voltage, and common-mode range violations. The package is a 16-pin QSOP, and the specified operating temperature range is -40°C to +85°C.

Feature Summary

• Detects open-circuit conditions, short-circuit conditions, low differential voltage signals, and common-mode range violations.
• Provides independent fault outputs for each receiver channel alongside a universal delayed fault output.
• Features capacitor-programmable delay on the ALARMD pin to prevent erroneous fault indications during slow edge rates.
• Offers extended common-mode input range from -10V to +13.2V.

Applications

• Motor-shaft encoder receivers
• Telecommunications systems
• Embedded systems

Procurement Notes

Verify the specific suffix 'EEEE' corresponds to the -40°C to +85°C temperature grade and 16-pin QSOP package configuration. Confirm that the required fault detection logic aligns with the MAX3097E specifications rather than the MAX3098E variant. Ensure system design accounts for the 16-pin QSOP footprint dimensions.

Selection Notes

Select this component when three high-speed RS-422/RS-485 channels are required within a compact QSOP footprint. It is suitable for environments demanding robust fault detection capabilities without external components. Verify compatibility with the target system's supply voltage range between 3V and 5.5V.

Part Context

This part belongs to the MAX3097E/MAX3098E family of high-speed receivers designed for industrial applications. The MAX3097E specifically provides three receiver channels, whereas the MAX3098E offers four. Both share similar fault detection architectures but differ in channel count and specific threshold characteristics.

Replacement Considerations

MAX3097ECSE+ (SO-16 package)

FAQ

How is the delayed fault output time configured?

The ALARMD output delay is set by connecting an external capacitor between the DELAY pin and GND. The delay duration depends on the supply voltage and the capacitance value.

What types of faults does the device detect?

The device detects open-circuit conditions, short-circuit conditions, low differential voltage signals, and inputs outside the common-mode range.

Is pull-up resistor required for the fault outputs?

No, the fault outputs are active push-pull and do not require external pull-up resistors.