Features (Typical 5V supply, unless otherwise noted.) Supply voltage 2.7V to 5.5V Dynamic power mode setting   Continuously programmable supply current Range 5 µA to 425 µA Continuously programmable bandwidth Range 73 kHz to 4.6 MHz Input common mode voltage range -0.3V to 3.8V CMRR 95 dB Rail-to-rail output voltage swing   Input offset voltage 1 mV Description The LPV531 is an extremely versatile operational amplifier. A single external resistor gives the system designer the ability to define the quiescent current, gain bandwidth product and output short circuit current. This innovative feature gives the system designer a method to dynamically switch the power level to optimize the performance of the op amp and meet the system design requirements. The LPV531 can be tailored to a wide variety of applications. It offers the system designer the ability to dynamically trade off supply current for bandwidth by adjusting the current drawn from the ISEL pin using a DAC or switching in different value resistors in series with the ISEL pin. The LPV531 is capable of operating from 73 kHz, consuming only 5 µA, to as fast as 4.6 MHz, consuming only 425 µA. The input offset voltage is relatively independent and therefore is not significantly affected by the chosen power level. Utilizing a CMOS input stage, the LPV531 achieves an input bias current of 50 fA and a common mode input voltage which extends from the negative rail to within 1.2V of the positive supply. The LPV531's rail-to-rail class AB output stage enables this op amp to offer maximum dynamic range at low supply voltage. Offered in the space saving 6-pin TSOT23 package, the LPV531 is ideal for use in handheld electronics and portable applications. The LPV531 is manufactured using National's advanced VIP50 process. A fixed supply current/gain bandwidth is available upon request. Applications AC coupled circuits Portable instrumentation Active filters

Also Recommended LPV521▲ Low Power, Operates Down To 1.6V

Typical Application click for larger image	Connection Diagram click for larger image
Typical Performance *click for larger image

Datasheets

Title		Size	Date	Other Language
	LPV531 Programmable Micropower CMOS Input, Rail-to-Rail Output Operational Amplifier	958 Kbytes	18-May-06	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1684: Application Note 1684 Saving Power in an AC-Coupled Amplifier Circuit	127 Kbytes	12-Sep-07	日本語

Other Technical Documents

Title		Type	Date
	A Voltage-Controlled Filter	Technology Edge	2006-06-01

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LPV531MK/NOPB LPV531MK RoHS Status	TSOT	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 1926 MOUSER Worldwide 800 RS COMPONENTS Worldwide 50	$0.45 each at 1K+ pcs	reel of 1000
LPV531MKX/NOPB LPV531MKX RoHS Status	TSOT	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$0.45 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 LPV531.

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 LPV531 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LPV531MK/NOPB LPV531MK	13.726 13.851	TSOT	6	1 1	260 260	Detail	Download	N/A	AV2A XTT
LPV531MKX/NOPB LPV531MKX	13.726 13.851	TSOT	6	1 1	260 260	Detail	Download	N/A	AV2A 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 LPV531.

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 LPV531 is located at RoHS Status.

CAD Symbols and Models Download LPV531 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LPV531MK	PVIP050	0	14280	0	0	1755000	3	497986041
LPV531MKX	PVIP050	0	14280	0	0	1755000	3	497986041

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 LPV531.

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 LPV531 is located at RoHS Status.