General Description

The MAX4144/MAX4145/MAX4146 differential line receivers offer unparalleled high-speed, low-distortion performance. Using a three op-amp instrumentation amplifier architecture, these ICs have fully symmetrical differential inputs and a single-ended output. They operate from ±5V power supplies and are capable of driving a 150Ω load to ±3.7V. The MAX4144 has an internally set closed-loop gain of +2V/V. The MAX4145 is optimized for gains from +1V/V to +10V/V, while the MAX4146 is optimized for gains from +10V/V to +100V/V. The MAX4145/MAX4146 require a single external resistor to set the closed-loop gain.

Features

MAX4144:

♦ +2V/V Internally Fixed Gain

♦ 130MHz Bandwidth

♦ 1000V/μs Slew Rate

♦ 70dB CMR at 10MHz

♦ -90dBc SFDR (f = 10kHz)

♦ Low Differential Gain/Phase: 0.03/0.03°

♦ 800μA Shutdown

MAX4145:

♦ External Gain Selection from +1V/V to +10V/V

♦ 180MHz Bandwidth

♦ 90MHz 0.1dB Gain Flatness

♦ 600V/μs Slew Rate

♦ 75dB CMR at 10MHz

♦ -92dBc SFDR (f = 10kHz)

♦ Very Low Noise: 3.8nV/√Hz (G = +10V/V)

♦ 800μA Shutdown

MAX4146:

♦ External Gain Selection from +10V/V to +100V/V

♦ 70MHz Bandwidth (AV = +10V/V)

♦ 800V/μs Slew Rate

♦ 90dB CMR at 10MHz

♦ -82dBc SFDR (f = 10kHz)

♦ Very Low Noise: 3.45nV/√Hz (G = +100V/V)

♦ 800μA Shutdown

Applications

Differential to Single-Ended Conversion

Twisted-Pair to Coaxial Converter

High-Speed Instrumentation Amplifier

Data Acquisition

Medical Instrumentation

High-Speed Differential Line Receiver