DIO20491 is an ultra low power operational amplifier. DIO20491 has a gain-bandwidth product of 150kHz, wide operating supply voltage from 1.8V to 5.5V and broad output voltage swing. DIO20491 consumes ultra low power, with 4μA bias current, which makes DIO20491 can be ideal for battery powered device, temperature-sense device, etc. The DIO20491 operational amplifier is available in single configuration. All types of amplifiers are fully specified over the extended -40°C to 125°C temperature range.