DESCRIPTION
The LT®1221 is a very high speed operational amplifier with superior DC performance. The LT1221 is stable in a noise gain of 4 or greater. It features reduced input offset voltage, lower input bias currents and higher DC gain than devices with comparable bandwidth and slew rate. The circuit is a single gain stage that includes proprietary DC gain enhancement circuitry to obtain precision with high speed.

FEATURES
■ Gain-Bandwidth: 150MHz
■ Gain of 4 Stable
■ Slew Rate: 250V/µs
■ Input Noise Voltage: 6nV/√Hz
■ C-LoadTM Op Amp Drives Capacitive Loads
■ Maximum Input Offset Voltage: 600µV
■ Maximum Input Bias Current: 300nA
■ Maximum Input Offset Current: 300nA
■ Minimum Output Swing Into 500Ω: ±12V
■ Minimum DC Gain: 50V/mV, RL = 500Ω
■ Settling Time to 0.1%: 65ns, 10V Step
■ Settling Time to 0.01%: 85ns, 10V Step
■ Differential Gain: 0.08%, AV = 4, RL = 150Ω
■ Differential Phase: 0.2°, AV = 4, RL = 150Ω

APPLICATIONS
■ Wideband Amplifiers
■ Buffers
■ Active Filters
■ Video and RF Amplification
■ Cable Drivers
■ 8-, 10-, 12-Bit Data Acquisition Systems