The AD8613/AD8617/AD8619 are low cost, low noise CMOS rail-to-rail input/output operational amplifiers. Their features are low supply current, low input voltage and low current noise. The devices are fully specified for operation from a single supply of 1.8 V to 5.0 V or ±0.9 V and ±2.5 V dual supplies. The combination of low noise, very low input bias currents, and low power consumption makes the AD8613/AD8617/AD8619 ideal for use in portable battery-powered instrumentation, multipole filters, current shunt sense, sensors, ADC predrivers, DAC drivers/level shifters, and low power ASIC input or output amplifiers.