The LT3092 has a 1% initial accuracy and a low temperature coefficient. Output currents can be set from 0.5mA to 200mA and current regulation is typically 10ppm per volt. The LT3092 operates down to 1.2V or up to 40V VIN. This gives an impedance of 100 mOhms at 1mA or 1 mOhm at 100mA. Unlike almost any other analog integrated circuits, special design techniques have been used for stable operation without a supply bypass capacitor, allowing it to provide high AC impedance as well as high DC impedance.