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 MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

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

Datasheet

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

Featured 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

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)
LPV531MK	PVIP050	0	9960	0	0	855000	5	242608584
LPV531MKX	PVIP050	0	9960	0	0	855000	5	242608584

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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