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LPV531MK Datasheet

  • LPV531MK

  • National Semiconductor [Programmable Micropower CMOS Input,...

  • NSC

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LPV531 Programmable Micropower CMOS Input, Rail-to-Rail Output Operational Amplifier
May 2006
LPV531
Programmable Micropower CMOS Input, Rail-to-Rail
Output Operational Amplifier
General 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 prod-
uct 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 I
SEL
pin using a DAC or switching in different
value resistors in series with the I
SEL
pin. The LPV531 is
capable of operating from 73 kHz, consuming only 5 碌A(chǔ), to
as fast as 4.6 MHz, consuming only 425 碌A(chǔ). The input offset
voltage is relatively independent and therefore is not signifi-
cantly 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鈥檚 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鈥檚
advanced VIP50 process.
A fixed supply current/gain bandwidth is available upon re-
quest.
Features
(Typical 5V supply, unless otherwise noted.)
n
Supply voltage
2.7V to 5.5V
n
Dynamic power mode setting
n
Continuously programmable supply current
鈥?Range
5 碌A(chǔ) to 425 碌A(chǔ)
n
Continuously programmable bandwidth
鈥?Range
73 kHz to 4.6 MHz
n
Input common mode voltage range
鈭?.3V to 3.8V
n
CMRR
95 dB
n
Rail-to-rail output voltage swing
n
Input offset voltage
1 mV
Applications
n
AC coupled circuits
n
Portable instrumentation
n
Active filters
Typical Application
20132335
AC Coupled Application
漏 2006 National Semiconductor Corporation
DS201323
www.national.com

LPV531MK 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 1

  • 72 dB

  • 4.5 mV at 5 V

  • 5 V

  • SMD/SMT

  • TSOT

  • 2.5 V/us at 5 V

  • No

  • + 85 C

  • Reel

  • - 40 C

  • 1000

  • 0.53 mA at 5 V

  • 5.5 V

  • 2.7 V

  • BiCMOS

  • 128 dB

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