LPV521 Datasheet | National Semiconductor Corporation

LPV521 Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier .. August 24, 2009 Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier General Description The LPV521 is a single nanopower 552 n W amplifier designed for ultra long life battery applications. The operating voltage range of 1.6V to 5.5V coupled with typically 351 n A of supply current make it well suited for RFID readers and remote sensor nanopower applications. The device has input mon mode voltage 0.1V over the rails, guaranteed TCVOS and voltage swing to the rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms petitors with typically 40 f A IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high impedance photodiode, and charge sense situations. The LPV521 is a member of the Power Wise® family and has an exceptional power-to-performance ratio. The wide input mon mode voltage range, guaranteed 1 m V VOS and 3.5 µV/°C TCVOS enables accurate and stable measurement for both high side and low side current sensing. EMI protection was designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers. The LPV521 is offered in the 5-pin SC-70 package. Features (For VS = 5V, Typical unless otherwise noted) 400 n A (max) - Supply current at VCM = 0.3V 1.6V to 5.5V - Operating voltage range 3.5 µV/°C (max) - Low TCVOS 1 m V (max) - VOS 40 f A - Input bias current 109 d B - PSRR 102 d B - CMRR 132 d B - Open loop gain 6.2 k Hz - Gain bandwidth product 2.4 V/ms - Slew rate 255 n V/√Hz - Input voltage noise at f = 100 Hz - 40°C to 125°C - Temperature range Applications - - - - - - - - Wireless remote sensors Powerline monitoring Power meters Battery powered industrial sensors Micropower oxygen sensor and gas sensor Active RFID readers Zigbee based sensors for HVAC control Sensor network powered by energy scavenging Typical...