LT1253 Datasheet | Linear Technology

LT1253/LT1254 Low Cost Dual and Quad Video Amplifiers Features s s s s s s s s DESCRIPTIO Low Cost Current Feedback Amplifiers Differential Gain: 0.03%, RL = 150Ω, VS = ± 5V Differential Phase: 0.28°, RL = 150Ω, VS = ± 5V Flat to 30MHz, 0.1d B 90MHz Bandwidth on ± 5V Wide Supply Range: ± 2V(4V) to ± 14V(28V) Low Power: 60m W per Amplifier at ± 5V The LT1253 is a low cost dual current feedback amplifier for video applications. The LT1254 is a quad version of the LT1253. The amplifiers are pletely isolated except for the power supply pins and therefore have excellent isolation, over 94d B at 5MHz. Dual and quad amplifiers significantly reduce costs pared with singles; the number of insertions is reduced and fewer supply bypass capacitors are required. In addition, these duals and quads cost less per amplifier than single video amplifiers. The LT1253/LT1254 amplifiers are ideal for driving low impedance loads such as cables and filters. The wide bandwidth and high slew rate of these amplifiers make driving RGB signals between PCs and workstations easy. The excellent linearity of these amplifiers makes them ideal for posite video. The LT1253 is available in 8-pin DIPs and the S8 surface mount package. The LT1254 is available in 14-pin DIPs and the S14 surface mount package. Both parts have the industry standard dual and quad op amp pin out. For higher performance, see the LT1229/LT1230. APPLICATI s s s RGB Cable Drivers posite Video Cable Drivers Gain Blocks in IF Stages TYPICAL APPLICATI 5V VIN + 1/2 LT1253 - - 5V RF 620Ω RG 620Ω Transient Response 75Ω 75Ω CABLE VOUT 75Ω AV = 1 + RF BW = 90MHz RG AT AMPLIFIER OUTPUT. 6d B LESS AT VOUT. LT1253/54 - TA01 VS = ±5V AV = 2 RL = 150Ω VO = 1V LT1253/54 - TA02 LT1253/LT1254 ABSOLUTE AXI U RATI GS Storage Temperature Range ................ - 65°C to 150°C Junction Temperature (Note 2) ............................ 150°C Lead Temperature (Soldering, 10 sec)................. 300°C Total...