型号LMP2012
品牌
分类精密运算放大器 (Vos<1mV)
描述双路、高精度、轨到轨输出运算放大器
相关操作
产品概述

参数

Number of channels 2
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
Vos (offset voltage at 25°C) (max) (mV) 0.036
GBW (typ) (MHz) 3
Features Zero Drift
Slew rate (typ) (V/µs) 4
Rail-to-rail In to V-, Out
Offset drift (typ) (µV/°C) 0.015
Iq per channel (typ) (mA) 0.919
Vn at 1 kHz (typ) (nV√Hz) 35
CMRR (typ) (dB) 130
Rating Catalog
Operating temperature range (°C) -40 to 125
Input bias current (max) (pA) 4
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) -1.8
Output swing headroom (to negative supply) (typ) (V) 0.04
Output swing headroom (to positive supply) (typ) (V) -0.022

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6
VSSOP (DGK) 8 14.7 mm² 3 x 4.9

特性

    (For VS = 5 V, Typical Unless Otherwise Noted)

  • Low Ensured VOS Over Temperature 60 µV
  • Low Noise with No 1/f 35nV/√Hz
  • High CMRR 130 dB
  • High PSRR 120 dB
  • High AVOL 130 dB
  • Wide Gain-Bandwidth Product 3 MHz
  • High Slew Rate 4 V/µs
  • Low Supply Current 930 µA
  • Rail-to-Rail Output 30 mV
  • No External Capacitors Required

说明

The LMP201x series are the first members of TI’s new LMP™ precision amplifier family. The LMP201x series offers unprecedented accuracy and stability in space-saving miniature packaging, offered at an affordable price. This device utilizes patented auto-zero techniques to measure and continually correct the input offset error voltage. The result is an amplifier which is ultra-stable over time and temperature. It has excellent CMRR and PSRR ratings, and does not exhibit the familiar 1/f voltage and current noise increase that plagues traditional amplifiers. The combination of the LMP201x characteristics makes it a good choice for transducer amplifiers, high gain configurations, ADC buffer amplifiers, DAC I-V conversion, and any other 2.7-V to 5-V application requiring precision and long term stability.

Other useful benefits of the LMP201x are rail-to-rail output, a low supply current of 930 µA, and wide gain-bandwidth product of 3 MHz. These versatile features found in the LMP201x provide high performance and ease of use.