LT1259/LT1260 Low Cost Dual and Triple 130MHz Current Feedback Amplifiers with Shutdown UFEATURESDESCRIPTIO ■ 90MHz Bandwidth on ± 5V The LT®1259 contains two independent 130MHz current ■ 0.1dB Gain Flatness > 30MHz feedback amplifiers, each with a shutdown pin. These ■ Completely Off in Shutdown, 0 µ A Supply Current amplifiers are designed for excellent linearity while driving ■ High Slew Rate: 1600V/µs cables and other low impedance loads. The LT1260 is a ■ Wide Supply Range: ±2V(4V) to ±15V(30V) triple version especially suited to RGB video applications. ■ 60mA Output Current These amplifiers operate on all supplies from single 5V to ■ Low Supply Current: 5mA/Amplifier ±15V and draw only 5mA per amplifier when active. ■ Differential Gain: 0.016% When shut down, the LT1259/LT1260 amplifiers draw ■ Differential Phase: 0.075° zero supply current and their outputs become high ■ Fast Turn-On Time: 100ns impedance. Only two LT1260s are required to make a ■ Fast Turn-Off Time: 40ns complete 2-input RGB MUX and cable driver. These ■ 14-Pin and 16-Pin Narrow SO Packages amplifiers turn on in only 100ns and turn off in 40ns, U making them ideal in spread spectrum and portable APPLICATIO S equipment applications. ■ RGB Cable Drivers The LT1259/LT1260 amplifiers are manufactured on ■ Spread Spectrum Amplifiers Linear Technology’s proprietary complementary bipolar ■ MUX Amplifiers process. ■ Composite Video Cable Drivers , LTC and LT are registered trademarks of Linear Technology Corporation. ■ Portable Equipment UTYPICAL APPLICATIO2-Input Video MUX Cable DriverSquare Wave Response CHANNEL A B SELECT EN A VIN A + 75Ω RG 1/2 LT1259 1.6k – 75Ω RF CABLE 1.6k VOUT CABLE OUTPUT EN B 75Ω VIN B + 75Ω RG 1/2 LT1259 1.6k LT1259/60 • TA01 – RF 1.6k R LT1259/50 • TA02 L = 150Ω f = 30MHz 1
