LT1812 3mA, 100MHz, 750V/µs Operational Amplifi er with Shutdown FEATURESDESCRIPTION n 100MHz Gain Bandwidth The LT®1812 is a low power, high speed, very high slew n 750V/μs Slew Rate rate operational amplifi er with excellent DC performance. n 3.6mA Maximum Supply Current The LT1812 features reduced supply current, lower input n 50μA Supply Current in Shutdown offset voltage, lower input bias current and higher DC gain n 8nV/√Hz Input Noise Voltage than other devices with comparable bandwidth. A power n Unity-Gain Stable saving shutdown feature reduces supply current to 50μA. n 1.5mV Maximum Input Offset Voltage The circuit topology is a voltage feedback amplifi er with the n 4μA Maximum Input Bias Current slewing characteristics of a current feedback amplifi er. n 400nA Maximum Input Offset Current The output drives a 100Ω load to ± 3.5V with ±5V supplies. n 40mA Minimum Output Current, VOUT = ±3V On a single 5V supply, the output swings from 1.1V to n ±3.5V Minimum Input CMR, VS = ±5V 3.9V with a 100Ω load connected to 2.5V. The amplifi er n 30ns Settling Time to 0.1%, 5V Step is stable with a 1000pF capacitive load which makes it n Specifi ed at ±5V, Single 5V Supplies useful in buffer and cable driver applications. n Operating Temperature Range: –40°C to 85°C n Low Profi le (1mm) SOT-23 (ThinSOT™) The LT1812 is manufactured on Linear Technology’s and S8 Packages advanced low voltage complementary bipolar process. The dual version is the LT1813. For higher supply voltage APPLICATIONS single, dual and quad operational amplifi ers with up to 70MHz gain bandwidth, see the LT1351 through LT1365 n Wideband Amplifi ers data sheets. n Buffers L n , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Active Filters Technology Corporation. ThinSOT is a Trademark of Linear Technology Corporation. All other n Video and RF Amplifi cation trademarks are the property of their respective owners. n Cable Drivers n Data Acquisition Systems TYPICAL APPLICATIONFilter Frequency Response4MHz, 4th Order Butterworth Filter 10 0 232Ω –10 274Ω –20 –30 47pF 232Ω 665Ω – –40 VIN 22pF 274Ω 562Ω – –50 220pF LT1812 + VOLTAGE GAIN (dB) –60 470pF LT1812 VOUT + –70 VS = ±5V –80 VIN = 600mVP-P 1812 TA01 PEAKING < 0.12dB –90 0.1 1 10 100 FREQUENCY (MHz) 1812 TA02 1812fb 1
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