型号LPV531
品牌
分类通用运算放大器
描述单路、5V、4.6MHz、RRO 运算放大器
相关操作
产品概述

参数

Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7
Rail-to-rail In to V-, Out
GBW (typ) (MHz) 4.6
Slew rate (typ) (V/µs) 2.5
Vos (offset voltage at 25°C) (max) (mV) 4.5
Iq per channel (typ) (mA) 0.425
Vn at 1 kHz (typ) (nV√Hz) 25
Rating Catalog
Operating temperature range (°C) -40 to 85
Offset drift (typ) (V/°C) 0.0000001
Features Shutdown
Input bias current (max) (pA) 1
CMRR (typ) (dB) 95
Iout (typ) (A) 0.015
Architecture CMOS
Input common mode headroom (to negative supply) (typ) (V) -0.3
Input common mode headroom (to positive supply) (typ) (V) -1.2
Output swing headroom (to negative supply) (typ) (V) 0.095
Output swing headroom (to positive supply) (typ) (V) -0.03

封装 | 引脚 | 尺寸

SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8

特性

  • (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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说明

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.