Analog Devices / Maxim Integrated MAX44211 High-Current Differential Line Driver
Analog Devices MAX44211 High-Current Differential Line Driver is a low-distortion line driver customized for powerline communication (PLC) applications. It is designed for use where a high output current is needed to drive the isolation and coupling transformer under varying load conditions. The Analog Devices MAX44211 can be switched to implement all world standards, trading off improved linearity for increased quiescent current. The MAX44211 delivers a high 1.5A linear output current and provides peak-to-peak differential voltage swing of up to 36V.
The MAX44211 features low intermodulation and harmonic distortion, ensuring they meet worldwide PLC standards. The MAX44211 features advanced diagnostics for temperature and output current monitoring. There is a high-temperature warning and over-temperature shutdown function. There is also a programmable current limit. The status of these diagnostics is indicated via two open-drain status outputs.
The Analog Devices MAX44211 High-Current Differential Line Driver is designed to interface to powerlines with wide-ranging and variable loads and drive signals within the 9kHz to 500kHz frequency band. This device operates from a single supply and is available in a 4mm x 4mm, 20-pin TQFN package. The MAX44211 device is specified for operation from -40°C to +85°C.
Features
- Meets stringent ARIB, FCC, and CENELEC linearity specifications for out-of-band emissions
- Output drives current linearly up to 1.5A peak into a reactive load for PLC applications
- Output voltage swings to within 0.5V of AVDD or AGND (36VP-P differential) for widest dynamic range
- Wide power-supply range addresses multiple standards
- 8.0V to 20.0V for analog supply
- 2.7V to 5.5V for digital supply
- Programmable output current limit via external resistor provides flexibility
- Programmable gain (6x, 12x, 15x, or 18x) via gain inputs provides multi-standard usage
- Status logic outputs provide improved diagnostics
- Overtemperature shutdown active
- High-temperature warning active
- Overcurrent active
- -40°C to +85°C operating temperature range
- 4mm x 4mm TQFN-20 package
Applications
- Lighting
- Powerline communications
- Smart meters
- Solar
Development Tools
Analog Devices / Maxim Integrated MAX44211EVKIT Evaluation Kit
Evaluates the MAX44211 high-current differential line driver for powerline communications (PLC).
Functional Block Diagram
