MAX212CAG

Drivers, Receivers, Transceivers Overview

The MAX212CAG is a low-power, single-chip full-duplex modem transceiver designed for applications requiring reliable data transmission over voice-grade telephone lines. It integrates a quadrature modulator and demodulator along with programmable filters to support V.22bis, V.23, and Bell 212A/103 standards. The device operates from a single 5V supply and includes an on-chip voltage regulator for internal logic levels. Key electrical parameters include a typical operating current of 40mA at 5V and a standby current of less than 1µA. The input sensitivity is specified at -40dBm for FSK modes and -30dBm for PSK modes. The output power into a 600-ohm load is typically +4dBm. The component utilizes a 28-pin plastic DIP package.

Drivers, Receivers, Transceivers Feature Summary

• Integrated full-duplex modem functionality combining modulation and demodulation circuits in a single package
• Supports multiple international telecommunications standards including V.22bis, V.23, and Bell 212A/103 protocols
• Includes programmable receive and transmit filters optimized for voice-grade line conditions
• Features low standby current consumption suitable for battery-powered or always-on communication devices

Drivers, Receivers, Transceivers Applications

• Automated meter reading systems for utility infrastructure
• Point-of-sale terminals requiring dial-up connectivity
• Industrial remote monitoring and control equipment
• Fax machines and answer machines

Drivers, Receivers, Transceivers Procurement Notes

Verify the suffix 'CAG' corresponds to the specific temperature range and package type required for your design. Confirm that the 28-pin DIP footprint matches your PCB layout constraints. Ensure compatibility with existing microcontroller interfaces for control signals such as MODEM ON and DATA OUT. Check for lead-free compliance if environmental regulations apply to your final product assembly process.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require standard analog modem capabilities without external discrete components. Consider the MAX212CAG for cost-sensitive applications where moderate data rates up to 2400 bps are sufficient. Evaluate power consumption requirements carefully, as the active current draw may impact battery life in portable designs compared to newer digital alternatives.

Drivers, Receivers, Transceivers Part Context

This part belongs to the Maxim Integrated MAX212 family of modem transceivers. It serves as a direct replacement for older discrete modem solutions or competing integrated circuits from other manufacturers. The CAG suffix indicates a commercial temperature range and a specific plastic dual in-line package configuration commonly used in through-hole manufacturing processes.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-to-pin replacements may include the MAX212CAI for industrial temperature ranges or variants from other vendors supporting identical V.22bis/V.23 standards. Verify register compatibility and filter characteristics when substituting with generic equivalents to ensure signal integrity on legacy telephone lines.