LT1399 Datasheet | Linear Technology

LT1398/LT1399/LT1399HV Low Cost Dual and Triple 300MHz Current Feedback Amplifiers with Shutdown Features s s s s s DESCRIPTIO s s s s s U APPLICATIO S s s s s s s 300MHz Bandwidth on ± 5V (AV = 1, 2 and - 1) 0.1d B Gain Flatness: 150MHz (AV = 1, 2 and - 1) pletely Off in Shutdown, 0µA Supply Current High Slew Rate: 800V/µs Wide Supply Range: ± 2V(4V) to ± 6V(12V) (LT1398/LT1399) ±2V (4V) to ±7.5V (15V) (LT1399HV) 80m A Output Current Low Supply Current: 4.6m A/Amplifier Fast Turn-On Time: 30ns Fast Turn-Off Time: 40ns 16-Pin Narrow SO/Narrow SSOP Packages The LT ®1399 and LT1399HV contain three independent 300MHz current feedback amplifiers, each with a shutdown pin. The LT1399HV is a higher voltage version of the LT1399. The LT1398 is a two amplifier version of the LT1399. The LT1398/LT1399 operate on all supplies from a single 4V to ±6V. The LT1399HV operates on all supplies from 4V to ±7.5V. Each amplifier draws 4.6m A when active. When disabled each amplifier draws zero supply current and its output bees high impedance. The amplifiers turn on in only 30ns and turn off in 40ns, making them ideal in spread spectrum and portable equipment applications. The LT1398/LT1399/LT1399HV are manufactured on Linear Technology’s proprietary plementary bipolar process. The LT1399/LT1399HV are pin-for-pin upgrades to the LT1260 optimized for use on ±5V/±7.5V supplies. , LTC and LT are registered trademarks of Linear Technology Corporation. RGB Cable Drivers LCD Drivers Spread Spectrum Amplifiers MUX Amplifiers posite Video Cable Drivers Portable Equipment TYPICAL APPLICATIO A VIN A RG 200Ω CHANNEL SELECT EN A B C 3-Input Video MUX Cable Driver Square Wave Response 97.6Ω 75Ω CABLE VOUT VIN B RG 200Ω + - 1/3 LT1399 RF 324Ω + - EN B 97.6Ω 75Ω OUTPUT 200m V/DIV 1/3 LT1399 RF 324Ω VIN C RG 200Ω + - EN C 97.6Ω 1399 TA01 RL = 100Ω RF = RG = 324Ω f = 10MHz 1/3 LT1399 RF 324Ω TIME (10ns/DIV) 1398/99 TA02 LT1398/LT1399/LT1399HV ABSOLUTE AXI U RATI...