LPV531 可编程微功耗 CMOS 输入、轨至轨输出运算放大器 | 德州仪器 TI.com.cn

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可编程微功耗 CMOS 输入、轨至轨输出运算放大器

可编程微功耗 CMOS 输入、轨至轨输出运算放大器 - LPV531


  • LPV521  -  Low Power, Operates Down To 1.6V


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.


  • (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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Part number 立即下单 Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) GBW (Typ) (MHz) Slew rate (Typ) (V/us) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Iq per channel (Typ) (mA) Vn at 1 kHz (Typ) (nV/rtHz) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Offset drift (Typ) (uV/C) Features Input bias current (Max) (pA) CMRR (Typ) (dB) Output current (Typ) (mA) Architecture
LPV531 立即下单 1     2.7     5     4.6     2.5     In to V-
4.5     0.425     25     Catalog     -40 to 85     SOT-23-THIN | 6     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)     0.1     Shutdown     1     95     15     CMOS    
LPV521 立即下单 1     1.6     5.5     0.0062     0.0024     In
1     0.000351     255     Catalog     -40 to 125     SC70 | 5     5SC70: 4 mm2: 2.1 x 2 (SC70 | 5)     0.4     EMI Hardened     1     102     22     CMOS