MAX3098EACEE+T

Overview

The MAX3098EACEE+T is a triple RS-422/RS-485 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 receiver channel, identifying open-circuit, short-circuit, low differential voltage, and common-mode range violations. It includes ±15kV ESD protection via Human Body Model and IEC 1000-4-2 standards. The component is housed in a 16-pin QSOP package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Triple high-speed receivers with dedicated fault-status outputs for A, B, and Z channels
• Capacitor-programmable delayed fault indication to prevent erroneous alarms at slow edge rates
• Extended common-mode input range from -10V to +13.2V
• Robust electrostatic discharge protection rated at ±15kV

Applications

• Motor-shaft encoder signal reception
• Telecommunications equipment
• Embedded systems requiring reliable bus communication

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Confirm RoHS compliance status through current datasheets or distributor declarations. Ensure the supplier provides valid traceability documents. Cross-reference the part number with the latest Analog Devices inventory lists to verify availability and production status before finalizing procurement orders.

Selection Notes

Select this component when designing systems that require simultaneous monitoring of three differential signals with immediate fault detection capabilities. The integrated alarm outputs simplify system diagnostics compared to standard receivers lacking fault indicators. Consider the capacitor-programmable delay feature if the application involves slow data rates prone to triggering false alarms during signal transitions.

Part Context

This device belongs to the MAX3097E/MAX3098E family of high-speed interface receivers. The MAX3098 variant specifically provides three receiver channels, whereas the MAX3097 offers four. Both share identical fault detection architectures and ESD protection levels. The 'ACEE' suffix denotes the 16-pin QSOP package with a commercial temperature range, while '+T' indicates tape-and-reel packaging.

Replacement Considerations

MAX3097EACEE+T: Offers four receivers instead of three; otherwise shares similar fault detection and ESD specifications.

FAQ

How is the delayed fault output time configured?

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

What types of faults can the MAX3098 detect?

It detects open-circuit conditions, short-circuit conditions, low differential input voltage signals, and common-mode range violations.

Does the device require external pull-up resistors for fault outputs?

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