MAX4449ESE+T

Video Amps And Modules Overview

The MAX4449ESE+T is a single-ended-to-differential line driver designed for high-speed communications. It features a small-signal bandwidth of 400MHz and a slew rate of 6500V/µs. The device delivers an output drive current of 130mA and supports variable gain selection using external resistors, with a minimum stable gain of +5V/V. It operates from ±4.5V to ±5.5V supplies and includes a low-power enable mode that reduces quiescent current below 5.5mA while placing outputs in a high-impedance state.

Video Amps And Modules Feature Summary

• High slew rate of 6500V/µs for fast signal transitions
• Variable gain configuration via external resistors with a minimum stable gain of +5V/V
• Low-power enable mode reducing supply current and isolating outputs
• Ultra-low noise density of 23nV/√Hz at 1MHz input frequency

Video Amps And Modules Applications

• Differential Line Driver
• Single-Ended-to-Differential Conversion
• High-Speed Differential Transmitter
• Coaxial to Twisted-Pair Converter
• xDSL Applications

Video Amps And Modules Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging when sourcing components. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated. Ensure the operating temperature range matches the -40°C to +85°C specification required for your application environment before finalizing procurement.

Video Amps And Modules Selection Notes

Select this component when a wideband amplifier requires a minimum closed-loop gain of +5V/V. It is suitable for applications needing high output current drive capabilities and low differential gain/phase errors. Consider the enable pin functionality if power management during idle states is a design requirement.

Video Amps And Modules Part Context

This part belongs to the MAX4447/MAX4448/MAX4449 family of wideband line drivers. While sharing similar architecture and performance characteristics, the MAX4449 is distinguished by its higher small-signal bandwidth of 400MHz and internal compensation stability starting at a gain of +5V/V, unlike the fixed-gain MAX4447 or lower-gain MAX4448.

Video Amps And Modules Replacement Considerations

MAX4448ESE+T

Video Amps And Modules FAQ

How is the gain configured for the MAX4449?

The gain is set externally using a resistor connected between the RG pin and ground. The device is internally compensated for a minimum stable gain of +5V/V.

What is the function of the EN pin?

The EN pin is an active-high, TTL-compatible enable input. Driving it low places the device in a low-power mode, reducing current consumption and setting the outputs to a high-impedance state.