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

60Hz Notch Filter w/ In-Out Text

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

Parameters Values Supply Min 1.6 Volt Supply Max 5.5 Volt Gain Bandwidth 0.0062 MHz Offset Voltage max, 25C 1 mV Max Input Bias Current 0.001 nA CMRR 102 dB PSRR 109 dB Channels 1 Channels Supply Current Per Channel 0.0004 mA PowerWise Rating 2 64.5 uA/MHz Input OutputType R-R In and Out Slew Rate 0.0024 Volts/usec Output Current 22 mA Shut down No Voltage Noise 255 nV/root(Hz) Special Features EMI Hardened, Nanopower Temperature Min -40 deg C Temperature Max 125 deg C Function Op Amp Automotive No PowerWise Yes

Datasheets

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

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LPV521MG/NOPB RoHS Status	SC-70	Full production Lead Time: 8 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$0.49 each at 1K+ pcs	reel of 1000
LPV521MGE/NOPB RoHS Status	SC-70	Full production Lead Time: 8 weeks	Distributor Region Qty ARROW Worldwide 227 DIGI-KEY Worldwide 3610 FARNELL Europe and Asia 310 MOUSER Worldwide 1453 NEWARK Americas 310 TAYLOR Americas 227	$0.49 each at 1K+ pcs	reel of 250
LPV521MGX/NOPB RoHS Status	SC-70	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$0.49 each at 1K+ pcs	reel of 3000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LPV521.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LPV521 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH730268/NOPB	Evaluation board for 5-pin, north facing amplifiers in the SC70 package	Full production Lead Free (RoHS)	Distributor Region Qty	$10.00 each	1
Description: The LMH730268 evaluation PCB is designed to aid in the characterization of 5-pin, north facing amplifiers, that are available in the SC70 package. Contents: LMH730268 unpopulated PCB Updated version of CLC730068 SOT-23 Board - Same Layout NOTE: IC samples are not shipped with the Evaluation PCB, but may be requested separately from the Order page in the Product Folder.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
551012922-001/NOPB	SC-70 Amplifier Universal Evaluation Board	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 FARNELL Europe and Asia 1 MOUSER Worldwide 5 NEWARK Americas 1	$4.00 each	1
Description: National Semiconductor offers this blank universal Evaluation Board to help you evaluate the performance of any low voltage, low power operational amplifier that is offered in the SC-70 package. Resistors, capacitors, or any other components can be easily mounted on this board. These components can be chosen from any of the following three popular sizes: 1206, 0805, and, 0603. The op amp can then be tested under the conditions of your choice. The 551012922-001 Evaluation Board allows quick and easy evaluation of the part. You need only supply an analog input signaland a power supply to the evaluation board. Features: Universal for all low voltage, low power op amps. Dual sided layout for different pin-outs. Accommodates components of any of these sizes:      1206      0805      0603 Quick and easy evaluation. Contents: One 551012922-001 Evaluation Board Op Amp Evaluation Boards User`s Manual (SOT-23 and SC-70)

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LPV521MG/NOPB	7.65	SC-70	5	1	260	Detail	Download	spice file	AHA XTT
LPV521MGE/NOPB	7.65	SC-70	5	1	260	Detail	Download	spice file	AHA XTT
LPV521MGX/NOPB	7.65	SC-70	5	1	260	Detail	Download	spice file	AHA XTT

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LPV521.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LPV521 is located at RoHS Status.

CAD Symbols and Models Download LPV521 CAD Symbols

Models spice file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LPV521MG	VIP50CLZ3	0	5670	0	0	945000	4	268146330
LPV521MGE	VIP50CLZ3	0	5670	0	0	945000	4	268146330
LPV521MGX	VIP50CLZ3	0	5670	0	0	945000	4	268146330

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.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LPV521.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LPV521 is located at RoHS Status.

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