MAX4144EEE+

Overview

The MAX4144EEE+ 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 component is housed in a 16-pin QSOP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Three op-amp instrumentation amplifier architecture with fully symmetrical differential inputs and single-ended output
• Laser-trimmed matched thin-film resistors for high common-mode rejection performance
• Current-feedback technique enabling high bandwidth and fast slew rates
• Internal shutdown circuitry for low-power operation

Applications

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

Procurement Notes

Verify the specific ordering suffix EEE against official documentation to confirm the 16-pin QSOP package and industrial temperature range specifications. Ensure compatibility with ±5V supply requirements and check for any discontinuation notices or lifecycle status updates prior to finalizing procurement plans.

Selection Notes

Select this component when a fixed +2V/V gain is required for high-speed differential signal reception. Consider alternative models within the series if variable gain settings or different bandwidth requirements are necessary. Verify that the system can accommodate dual ±5V power supplies and that the 16-pin QSOP footprint fits the design constraints.

Part Context

This part belongs to the MAX4144/MAX4145/MAX4146 family of high-speed differential line receivers. While the MAX4145 and MAX4146 offer externally adjustable gains via a single resistor, the MAX4144 variant provides a factory-set gain of +2V/V. This family utilizes current-feedback techniques to achieve superior high-frequency performance compared to traditional voltage-feedback amplifiers.

Replacement Considerations

Direct functional replacements include other members of the MAX414x family such as the MAX4145EEE+ or MAX4146EEE+, provided gain adjustments are acceptable. Cross-family alternatives should be evaluated based on bandwidth, slew rate, and package compatibility.

FAQ

How is the gain set for the MAX4144?

The MAX4144 has an internally set closed-loop gain of +2V/V and does not require external gain-setting components.

What is the maximum output swing capability?

The device is capable of driving a 150 Ω load to ±3.7V when operating from ±5V power supplies.

How does the device handle shutdown mode?

Bringing the SHDN pin high places the amplifier into a low-power shutdown mode where the output enters a high-impedance state.