200mW Single-Chip Transmitter ICs for 868MHz/915MHz ISM Bands

Please check latest availability status for a specific part variant.


The MAX2900–MAX2904 complete single-chip 200mW transmitters are designed for use in the 868MHz/915MHz frequency bands. The MAX2900/MAX2901/MAX2902 are compliant with the FCC CFR47 part 15.247 902MHz to 928MHz ISM-band specifications. MAX2903/MAX2904 are compliant with the ETSI EN330-220 specification for the European 868MHz ISM band.

These transmitter ICs offer a high level of integration while minimizing the number of external components. This is achieved by full integration of the transmit modulator, power amplifier, RF VCO, 8-channel frequency synthesizer, and baseband PN sequence lowpass filter. By filtering the BPSK modulation, the spurious emissions are reduced, enabling up to eight independent transmit channels in the U.S. ISM band. Inputs are provided for spread-spectrum BPSK, ASK, and OOK. FM can be achieved by directly modulating the VCO. The devices are intended primarily for use with an external differential antenna.
MAX2900: Pin Configuration MAX2900: Pin Configuration Enlarge+

Key Features

  • Versions for U.S. 902MHz to 928MHz Band and European 868MHz Band
  • -7dBm to +23dBm Adjustable Differential RF Output Power
  • +23dBm Output Power at 4.5V, +20dBm Output Power at 3.0V
  • Support BPSK, OOK, ASK, and FM Modulations
  • Modulation Filter for Direct Sequence BPSK up to 8Mchips/s
  • Fully Integrated VCO with On-Chip Tank
  • Extremely Low Frequency Pulling for OOK Modulation (typ 60kHz peak, 5kHz RMS)
  • Integrated Frequency Synthesizer for up to 8 Channels (MAX2900)
  • +2.7V to +4.5V Supply Operation
  • Small 28-Pin QFN Package with Exposed Pad (5mm x 5mm)


  • Automatic Meter Reading
  • Wireless Building Control
  • Wireless Data Networks
  • Wireless Security Systems/Alarms
  • Wireless Sensors

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX2900EVKIT: Evaluation Kit for the MAX2900, MAX2901, MAX2902, MAX2903, MAX2904
MAX2901EVKIT: Evaluation Kit for the MAX2900, MAX2901, MAX2902, MAX2903, MAX2904
MAX2902EVKIT: Evaluation Kit for the MAX2900, MAX2901, MAX2902, MAX2903, MAX2904
MAX2903EVKIT: Evaluation Kit for the MAX2900, MAX2901, MAX2902, MAX2903, MAX2904
MAX2904EVKIT: Evaluation Kit for the MAX2900, MAX2901, MAX2902, MAX2903, MAX2904

Technical Documents

Tutorial 5300 RF Basics
Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
Request Reliability Report for: MAX2903 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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