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| ADVANCEthis data sheet is preliminary INFORMATION All information in and subject to change. 6/95 380MHz, Gain of +1/Gain of +2 High-Speed Buffers _______________General Description The MAX4177/MAX4277 are wide-bandwidth, fast-settling buffer amplifiers featuring high slew rate, high precision, high output current, and low differential gain and phase errors. The MAX4177 is preset for unity voltage gain (0dB), and has a small-signal -3dB bandwidth of 380MHz. The MAX4277 is preset for a voltage gain of +2 (6dB), and has a small-signal -3dB bandwidth of 350MHz. The MAX4177/MAX4277 feature the high slew rate and low power of current-mode feedback amplifiers. However, unlike conventional current-mode feedback amplifiers, these devices have a unique input stage that combines the benefits of current-feedback topology with those of the traditional voltage-feedback topology. This combination of architectures results in low input offset voltage and bias current, and high gain precision and power-supply rejection. The MAX4177/MAX4277 are ideally suited for driving 50 or 75 loads. They are the perfect choice for highspeed cable-driving applications such as video routing. In addition, the devices incorporate a shutdown mode that can be used to disable the output in multiplexer applications and to conserve power. The MAX4177/ MAX4277 are available in 8-pin DIP, SO and MAX packages. ____________________________Features o High Speed: 380MHz -3dB Bandwidth (MAX4177) 350MHz -3dB Bandwidth (MAX4277) 200MHz Full-Power Bandwidth (MAX4177, VOUT = 2Vp-p) 150MHz Full-Power Bandwidth (MAX4277, VOUT = 2Vp-p) 150MHz 0.1dB Flatness Bandwidth (MAX4177) 120MHz 0.1dB Flatness Bandwidth (MAX4277) o Low Differential Gain and Phase Error: 0.01%/0.01 o High Slew Rate: 1800V/s (MAX4177) o Low Power: 8mA Quiescent Supply Current 400A in Shutdown Mode o High-Impedance Output in Shutdown Mode o Low Input Bias Current: 2A o Low Input Offset Voltage: 0.5mV o Low Input-Referred Voltage Noise: 5nVHz o High Gain Precision: 1.5% Max with 50 Load o High PSRR: 75dB MAX4177/MAX4277 ________________________Applications Broadcast and High-Definition TV Systems Video Switching and Routing High-Speed Cable Drivers Communications Medical Imaging Precision High-Speed DAC/ADC Buffers ______________Ordering Information PART MAX4177CPA MAX4177CSA MAX4177CUA TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C PIN-PACKAGE 8 Plastic DIP 8 SO 8 MAX Ordering Information continued on next page. __________Typical Operating Circuit __________________Pin Configuration TOP VIEW 75 VIN VOUT SHDN 1 GND 2 INPUT 3 8 N.C. V+ OUT N.C. MAX4277 MAX4177 MAX4277 7 6 5 75 75 V- 4 GAIN OF +2 CABLE DRIVER DIP/SO/MAX ________________________________________________________________ Maxim Integrated Products 1 Call toll free 1-800-998-8800 for free samples or literature. 380MHz, Gain of +1/Gain of +2 High-Speed Buffers MAX4177/MAX4277 _Ordering Information (continued) PART MAX4177EPA MAX4177ESA MAX4177EUA MAX4177MJA MAX4277CPA MAX4277CSA MAX4277CUA MAX4277EPA MAX4277ESA MAX4277EUA MAX4277MJA TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -55C to +125C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C PIN-PACKAGE 8 Plastic DIP 8 SO 8 MAX 8 CERDIP 8 Plastic DIP 8 SO 8 MAX 8 Plastic DIP 8 SO 8 MAX 8 CERDIP 2 _______________________________________________________________________________________ |
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