LPV531 - Programmable Micropower CMOS Input, Rail-to-Rail Output Operational Amplifier

Updated : 2020-01-09 14:20:29
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 SOT package, the LPV531 is ideal for use in handheld electronics and portable applications. The LPV531 is manufactured using TI’s advanced VIP50 process.

A fixed supply current/gain bandwidth is available upon request.

Products containing the "LPV531" keyword are: LPV531 , LPV531MK , LPV531MK , LPV531MK+ , LPV531MK/NOPB , LPV531MK/NOPB , LPV531MKX , LPV531MKX , LPV531MKX /NOPB , LPV531MKX/NOPB , LPV531MKX/NOPB
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

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Parametrics
StatusACTIVE
Approx. price0.51 | 1ku
Number of channels1
Total Supply Voltage2.7
Rail-to-railIn to V-^Out
GBW4.6
Slew Rate2.5
Package GroupSOT-23-THIN|6
Vos (offset voltage @ 25 C)4.5
Iq per channel0.425
Vn at 1 kHz25
RatingCatalog
Operating temperature range-40 to 85
Package size: mm2:W x L (PKG)[pf]6SOT-23-THIN[/pf]: 8 mm2: 2.8 x 2.9 (SOT-23-THIN|6)
Offset drift0.1
FeaturesShutdown
Input bias current1
CMRR95
Output current15
ArchitectureCMOS
Radiation, TID
Radiation, SEL
Input common mode headroom (to negative supply)-0.3
Input common mode headroom (to positive supply)-1.2
Output swing headroom (to negative supply)0.095
Output swing headroom (to positive supply)-0.03