MAX4144ESD

Overview

The MAX4144ESD is a high-speed, low-distortion differential line receiver manufactured by Analog Devices Inc./Maxim Integrated. It features a fixed closed-loop gain of +2V/V and operates from ±5V power supplies. The device provides a -3dB bandwidth of 130MHz and a slew rate of 1000V/µs. It achieves a common-mode rejection (CMR) of 70dB at 10MHz and delivers a spurious-free dynamic range (SFDR) of -90dBc at 10kHz. The unit is housed in a 14-pin SO package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Utilizes a three op-amp instrumentation amplifier architecture with fully symmetrical differential inputs for superior noise immunity.
• Incorporates laser-trimmed, matched thin-film resistors to ensure high common-mode rejection performance.
• Employs current-feedback techniques to achieve high bandwidth and fast slew rates suitable for video and RF applications.

Applications

• Differential to Single-Ended Conversion
• Twisted-Pair to Coaxial Converter
• High-Speed Instrumentation Amplifier
• Medical Instrumentation

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the package type and temperature range. Ensure that the supply voltage requirements match the system design, as the device requires dual ±5V supplies. Confirm compatibility with the target PCB layout guidelines regarding grounding and bypassing to maintain specified high-frequency performance characteristics.

Selection Notes

Select this component when a fixed gain of +2V/V is required for differential signal reception. Compare bandwidth and slew rate specifications against other models in the MAX4144/MAX4145/MAX4146 family if variable gain or different frequency responses are needed. Ensure the application can accommodate the necessary dual power supply rails and thermal dissipation requirements for the SO package.

Part Context

This part belongs to the MAX4144/MAX4145/MAX4146 family of high-speed, low-distortion differential line receivers. While the MAX4145 and MAX4146 offer externally adjustable gain ranges, the MAX4144 variant is distinguished by its internally set +2V/V gain configuration. All members share similar architectural benefits including high CMR and low distortion.

Replacement Considerations

Direct functional substitutes within the same family include the MAX4145ESD and MAX4146ESD, though these require external gain-setting resistors and offer different gain configurations. Verify pinout compatibility and electrical parameter alignment before substitution.