The LMV324DTBR2G from onsemi is a Quad Low-Voltage Rail-to-Rail Operational Amplifier designed for portable and battery-operated applications. This op-amp requires a supply voltage of 2.7-5.5 V and delivers ultra-low quiescent current of 0.065 mA. It has an input offset voltage of 1.7-9 mV and a bias current of less than 1 nA. This op-amp has a gain bandwidth product of 1 MHz and a signal voltage gain of up to 100 V/mV. It has an output voltage swing of up to 400 mV and a common-mode rejection ratio (CMRR) of 65 dB. It supports rail-to-rail output operation with minimal distortion and exhibits no phase reversal under overdriven conditions. This op-amp is available in a surface-mount package that measures 6.40 x 5.10 x 1.20 mm and is ideal for PDAs, notebook computers, active filters, and portable battery-operated instruments.