Features (For VS = 5V, Typical unless otherwise noted) Supply current at VCM = 0.3V 400 nA (max) Operating voltage range 1.6V to 5.5V Low TCVOS 3.5 µV/°C (max) VOS 1 mV (max) Input bias current 40 fA PSRR 109 dB CMRR 102 dB Open loop gain 132 dB Gain bandwidth product 6.2 kHz Slew rate 2.4 V/ms Input voltage noise at f = 100 Hz 255 nV/ √Hz Temperature range −40°C to 125°C Description The LPV521 is a single nanopower 552 nW amplifier designed for ultra long life battery applications. The operating voltage range of 1.6V to 5.5V coupled with typically 351 nA of supply current make it well suited for RFID readers and remote sensor nanopower applications. The device has input common 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 competitors with typically 40 fA 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 PowerWise ™ family and has an exceptional power-to-performance ratio. The wide input common mode voltage range, guaranteed 1 mV 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. 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

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Typical Application click for larger image 60Hz Notch Filter w/ In-Out Text	Connection Diagram click for larger image new pin out
Typical Performance *click for larger image PMOS Supply Current

Datasheet

Title		Size	Date	Other Language
	LPV521 Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier	1154 Kbytes	24-Aug-09

Featured Application Notes

Title		Size	Date	Other Language
	AN-856: Application Note 856 A SPICE Compatible Macromodel for CMOS Operational Amplifiers	121 Kbytes	1-Oct-02

More Application Notes

Title		Size	Date	Other Language
	AN-856: Application Note 856 A SPICE Compatible Macromodel for CMOS Operational Amplifiers	121 Kbytes	1-Oct-02

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LPV521MG	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LPV521MGE	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LPV521MGX	VIP50CLZ3	0	1755	0	0	315000	12	89382110

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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