LT1223 100MHz Current Feedback Amplifier UFEATURESDESCRIPTIO ■ 100MHz Bandwidth at AV = 1 The LT®1223 is a 100MHz current feedback amplifier with ■ 1000V/µs Slew Rate very good DC characteristics. The LT1223’s high slew ■ Wide Supply Range: ±5V to ±15V rate, 1000V/µs, wide supply range, ±15V, and large output ■ 1mV Input Offset Voltage drive, ±50mA, make it ideal for driving analog signals over ■ 1µA Input Bias Current double-terminated cables. The current feedback amplifier ■ 5MΩ Input Resistance has high gain bandwidth at high gains, unlike conventional ■ 75ns Settling Time to 0.1% op amps. ■ 50mA Output Current The LT1223 comes in the industry standard pinout and ■ 6mA Quiescent Current can upgrade the performance of many older products. ■ Available in 8-Lead Plastic DIP and SO Packages U The LT1223 is manufactured on Linear Technology’s APPLICATIO S proprietary complementary bipolar process. , LTC and LT are registered trademarks of Linear Technology Corporation. ■ Video Amplifiers All other trademarks are the property of their respective owners. ■ Buffers ■ IF and RF Amplification ■ Cable Drivers ■ 8-, 10-, 12-Bit Data Acquisition Systems UTYPICAL APPLICATIOVideo Cable DriverVoltage Gain vs Frequency 60 100MHz GAIN + V + IN 50 BANDWIDTH 75Ω R – LT1223 G = 10 1k 40 – R R G = 33 G 75Ω 30 R R F CABLE G = 110 1k 20 RG = 470 10 OUT V VOLTAGE GAIN (dB) RG = ∞ R 0 G 1k 75Ω –10 –20 100k 1M 10M 100M 1G R A = 1 + F V RG FREQUENCY (Hz) AT AMPLIFIER OUTPUT LT1223 • TPC01 6dB LESS AT V OUT LT1223 • TA02 1223fb 1
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