The LT6238CGN#PBF is a quad low noise rail-to-rail output Operational Amplifier that feature 1.1nV/√Hz input referred noise voltage density and draw only 3.5mA of supply current per amplifier. The amplifier combines very low noise and supply current with a 215MHz gain bandwidth product and a 70V/μs slew rate. Low noise, fast settling time and low offset voltage make this amplifier optimal to drive low noise, high speed SAR ADCs. The amplifier family has an output that swings within 50mV of either supply rail to maximize the signal dynamic range in low supply applications and is specified on 3.3, 5 and ±5V supplies.