MAX3097ECSE

Overview

The MAX3097ECSE is a triple RS-422/RS-485 receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of +3V to +5.5V and supports data rates up to 32Mbps. The device features fault-detection circuitry with independent alarm outputs for each receiver channel, identifying open-circuit, short-circuit, low differential voltage, and common-mode range violations. It includes a capacitor-programmable delayed fault output (ALARMD) to prevent erroneous alarms during slow edge rates. ESD protection is rated at ±15kV via the Human Body Model and IEC 1000-4-2 standards. The component is housed in a 16-pin SO package and functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Detects open-circuit, short-circuit, low differential voltage, and common-mode range violations on receiver inputs.
• Provides independent fault-status outputs for each of the three receivers alongside a unified delayed fault output.
• Features capacitor-programmable delay logic to ensure error-free operation even at slow data rates.
• Offers extended electrostatic discharge protection rated at ±15kV without requiring external components.

Applications

• Motor-shaft encoder signal reception
• Telecommunications equipment interfaces
• Embedded systems requiring robust differential signaling

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the exact package type and temperature rating. Confirm that the required pin configuration matches the 16-pin SO footprint. Ensure system power supplies remain within the specified +3V to +5.5V operational limits to maintain electrical characteristics.

Selection Notes

Select this component when high-speed differential signal integrity monitoring is required for motor control or industrial applications. The integrated fault detection eliminates the need for external monitoring circuits. Verify compatibility with existing RS-422/RS-485 bus architectures and ensure the 16-pin SO package fits the available board space constraints.

Part Context

This device belongs to the MAX3097E/MAX3098E family of high-speed receivers designed for harsh environments. It serves as a specialized interface solution for converting differential signals while simultaneously monitoring line health. The ECSE variant specifically denotes the commercial temperature range and surface-mount packaging suitable for automated assembly processes.

Replacement Considerations

MAX3097EESE

FAQ

How does the MAX3097ECSE handle slow data rates?

It utilizes a capacitor-programmable delay on the ALARMD pin to blank transient faults caused by slow edge rates, preventing erroneous alarm triggers.

What types of input faults can be detected?

The device detects open-circuit conditions, short-circuit conditions, low differential voltage signals, and violations of the common-mode input voltage range.

Is external pull-up resistance required for the fault outputs?

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