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LT1355 - Dual 12MHz, 400V/µs Op Amps

The LT1355/LT1356 are dual and quad low power high speed operational amplifiers with outstanding AC and DC performance. The amplifiers feature much lower supply current and higher slew rate than devices with comparable bandwidth. The circuit topology is a voltage feedback amplifier with matched high impedance inputs and the slewing performance of a current feedback amplifier. The high slew rate and single stage design provide excellent settling characteristics which make the circuit an ideal choice for data acquisition systems. Each output drives a 500Ω load to ±12V with ±15V supplies and a 150Ω load to ±2.75V on ±5V supplies. The amplifiers are stable with any capacitive load making them useful in buffer applications. The LT1355/LT1356 are members of a family of fast, high performance amplifiers using this unique topology and employing Linear Technology Corporation’s advanced bipolar complementary processing. For a single amplifier version of the LT1355/LT1356 see the LT1354 data sheet. For higher bandwidth devices with higher supply currents see the LT1357 through LT1365 data sheets. Bandwidths of 25MHz, 50MHz, and 70MHz are available with 2mA, 4mA, and 6mA of supply current per amplifier. Singles, duals, and quads of each amplifier are available.

Features 12MHz Gain Bandwidth 400V/μs Slew Rate 1.25mA Maximum Supply Current per Amplifier Unity-Gain Stable C-Load™ Op Amp Drives All Capacitive Loads 10nV/√Hz Input Noise Voltage 800μV Maximum Input Offset Voltage 300nA Maximum Input Bias Current 70nA Maximum Input Offset Current 12V/mV Minimum DC Gain, RL = 1k 230ns Settling Time to 0.1%, 10V Step 280ns Settling Time to 0.01%, 10V Step ±12V Minimum Output Swing into 500Ω ±2.75V Minimum Output Swing into 150Ω Specified at ±2.5V, ±5V, and ±15V Typical Application

Applications Wideband Amplifiers Buffers Active Filters Data Acquisition Systems Photodiode Amplifiers Packaging