rail to rail op-amp
The AD8542 are single rail dual op-amps with very low current and bandwidth of 1MHz from Analog devices. They can operate from a single supply ranging starting from 2.7V.
LMV321 Rail-to-Rail Operational Amplifier
The LMV321 is a CMOS single low voltage operational amplifier with rail−to−rail output swing.
INA333 Instrumentation Amplifier
The INA333 device is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size, and low power make it ideal for a wide range of portable applications.
TLV9004 Low Power, 4 Channel, 1MHz Op-Amp
The TLV9004 is a quad-channel low-voltage (1.8 V to 5.5 V) operational amplifier with rail-to-rail input and output swing capabilities.