Maxim MAX4990ETD+T

Драйвер лампы ELДа

Overview

The MAX498/MAX4990ETD+ are high-speed, quad/triple, single-pole/double-throw video switches with on-board closed-loop buffer amplifiers. The buffer amplifiers feature +6dB gain (AVCL = 2V/V), 250MHz -3dB bandwidth, 70MHz 0.1dB gain flatness, and 1250V/µs slew rate. Fast switching time (3ns) and fast settling time (12ns for a 4V step) make these devices excellent choices for a wide variety of video applications. The low differential gain/phase errors (0.03%/0.06°) and wide bandwidth make them ideal for both composite-video and RGB applications. The amplifiers are capable of delivering ±2.5V into back-terminated 50Ω or 75Ω cables, and they deliver ±2V to a 75Ω load, allowing multiple cables to be driven from a single output.

♦ High Speed: 250MHz Small-Signal -3dB Bandwidth 135MHz Full-Power -3dB Bandwidth♦ 70MHz 0.1dB Gain Flatness♦ 1250V/µs Slew Rate♦ 12ns to 0.1% Settling Time♦ 0.03°/0.06% Differential Phase/Gain Error♦ 2pF Input Capacitance♦ 3ns Channel-Switching Time♦ 120mVp-p Channel-Switching Transient♦ Three-State Output Allows Large Switch Arrays♦ Directly Drives 50Ω or 75Ω Back-Terminated Cables

Features

Applications

• Coupling or blocking
• Smoothing
• Decoupling or bypassing
• Noise filtering
• DC/DC, DC/AC, and AC/AC converters
• Frequency converters
• Spot welding
• Flashtube ignition
• DC link
• Motor start