MAX2902ETI+

RF Transmitter Overview

The MAX2902ETI+ is a single-chip RF transmitter IC designed for the 868 MHz and 915 MHz ISM bands. It supports ASK and BPSK modulation protocols with an output power of 20 dBm. The device operates on a supply voltage range of 2.7 V to 4.5 V and draws a transmission current of 200 mA. It is housed in a 28-WFQFN package with exposed pads, suitable for surface-mount installation. The component functions within a temperature range of -40°C to +85°C.

RF Transmitter Feature Summary

• Integrates complete RF transmission functionality for ISM band applications
• Supports ASK and BPSK digital modulation schemes
• Provides high output power capability for extended range communication

RF Transmitter Applications

• Automatic Meter Reading systems
• Wireless data networks
• Security alarm sensors
• Wireless building control interfaces

RF Transmitter Procurement Notes

Verify the specific datasheet version and revision history prior to procurement, as Analog Devices may issue product change notifications affecting pinout or electrical characteristics. Confirm that the 28-WFQFN package dimensions match the target PCB footprint exactly. Ensure compliance with RoHS3 standards if required by the end-product regulations. Check for any obsolescence notices or lifecycle status updates from the manufacturer before finalizing the bill of materials.

RF Transmitter Selection Notes

Select this component when designing for 868 MHz or 915 MHz ISM bands requiring integrated ASK/BPSK transmission. It is appropriate for low-power wireless sensor nodes where board space is limited due to its compact QFN packaging. Consider the 200 mA peak current requirement for power supply design. Evaluate thermal dissipation needs given the exposed pad package type and 20 dBm output capability in enclosed environments.

RF Transmitter Part Context

This part belongs to the MAX290x series of single-chip RF transmitters from Maxim Integrated, now part of Analog Devices. The series targets cost-sensitive wireless applications in the global ISM bands. The MAX2902ETI+ specifically addresses the 915 MHz region, complementing other variants like the MAX2901 for different frequency ranges within the same functional family.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs carefully if considering alternative sources.