19-0016; Rev 1; 1/95 140MHz, 2-ChannelVideo Multiplexer/AmplifierMAX442_______________General Description____________________________Features The MAX442 combines a 140MHz video amplifier with a ♦ 140MHz Unity-Gain Bandwidth high-speed, 2-channel multiplexer in an 8-pin package. With its 36ns switching time and low differential gain ♦ 250V/µs Slew Rate (0.07%) and phase (0.09°) errors, it is ideal for broad- ♦ 0.07%/0.09° Differential Gain/Phase Error cast-quality video applications. The device is designed to drive both 50Ω and 75Ω cables, and can directly ♦ 36ns Channel Switch Time drive a 75Ω load to ±3V. ♦ No External Compensation Components The MAX442 video amplifier is compensated for unity- ♦ 8-Pin DIP and SO Packages gain stability, and features a 140MHz bandwidth and a 250V/µs slew rate. The multiplexer’s low input capaci- ♦ Directly Drives 50 Ω and 75 Ω Cables tance (4pF with the channel on or off) maximizes high- speed performance, and a ground pin separating the two input channels minimizes crosstalk and simplifies board layout. ______________Ordering Information The MAX442 operates from ±5V supplies and typically consumes 300mW. For applications that require more PARTTEMP. RANGEPIN-PACKAGE input channels, see the data sheets for the MAX440 8- MAX442CPA 0°C to +70°C 8 Plastic DIP channel mux/amp and the MAX441 4-channel mux/amp. MAX442CSA 0°C to +70°C 8 SO MAX442C/D 0°C to +70°C Dice* ________________________Applications MAX442EPA -40°C to +85°C 8 Plastic DIP MAX442ESA -40°C to +85°C 8 SO Broadcast-Quality Video-Signal Multiplexing *Dice are specified at TA = +25°C, DC parameters only. Coaxial-Cable Drivers Video Editing Video Security Systems Medical Imaging __________Typical Operating Circuit High-Speed Signal Processing +5V __________________Pin Configuration 0.1µF V+ TOP VIEW MAX442 75Ω VIDEO 75Ω CABLE V OUTPUT OUT IN0 VIDEO SIGNALS IN0 1 8 A0 270Ω 75Ω IN IN1 GND 2 7 V+ IN- MAX442 A0 3 6 IN1 VOUT 270Ω 4 5 V- IN- GND V- 0.1µF DIP/SO CHANNEL -5V SELECT ________________________________________________________________ Maxim Integrated Products1Call toll free 1-800-998-8800 for free samples or literature. Document Outline not-recomm-data-sheet-cover.pdf Not Recommended for New Designs
