The 427 Current Amplifier provides high speed combined with low noise and selectable gain, current suppression, and rise time. It has rise times as fast as 15µs at 10E08V/A gain. Rise times as fast as 1.5ms at the maximum gain of 10E11 V/A may be selected, Features Output ±10 V at up to 3 mA Output Resistance: <10-ohms dc to 30kHz Output Accuracy: ±2% accuracy