The Microchip Technology Inc. MCP6031/2/3/4 family of operational amplifiers (op amps) operate with a single supply voltage as low as 1.8V, while drawing ultra low quiescent current per amplifier (0.9 µA, typical). This family also has low input offset voltage (±150 µV, maximum) and rail-to-rail input and output operation. This combination of features supports battery-powered and portable applications.