Single, 5.5V, 6.2kHz, 350nA quiescent current, 1.6V supply (min), RRIO operational amplifier

The LPV521 is a single, nanopower,

552nW amplifier designed for ultra-long-life battery applications. The operating

voltage range of 1.6V to 5.5V coupled with typically 351nA of supply current make

this device an excellent choice for RFID readers and remote-sensor nanopower

applications. The device has an input common-mode voltage 0.1V over the rails,

specified TCVOS, and voltage-swing-to-the-rail output performance. The

LPV521 has a carefully designed CMOS input stage that outperforms competitors with

typically 40fA IBIAS currents. This low input current significantly

reduces IBIAS and IOS errors introduced in megohm resistance,

high-impedance photodiode and charge sense applications. The LPV521 is a member of

the PowerWise family, and has an exceptional power-to-performance ratio.

The wide input common-mode voltage

range, specified 1mV VOS and 3.5µV/°C TCVOS enables accurate

and stable measurement for both high-side and low-side current sensing.

EMI protection is designed into the

device to reduce sensitivity to unwanted RF signals from cell phones or other RFID

readers.

The LPV521 is offered in 5-pin SC70

and 8-pin PDIP packages.