LF444 Quad Low Power JFET Input Operational Amplifier | TIJ.co.jp

この製品はすでに市場にリリースされており、ご購入できます。 一部の製品は、より新しい代替品を使用できる可能性があります。
Quad Low Power JFET Input Operational Amplifier



The LF444 quad low power operational amplifier provides many of the same AC characteristics as the industry standard LM148 while greatly improving the DC characteristics of the LM148. The amplifier has the same bandwidth, slew rate, and gain (10 k load) as the LM148 and only draws one fourth the supply current of the LM148. In addition the well matched high voltage JFET input devices of the LF444 reduce the input bias and offset currents by a factor of 10,000 over the LM148. The LF444 also has a very low equivalent input noise voltage for a low power amplifier.

The LF444 is pin compatible with the LM148 allowing an immediate 4 times reduction in power drain in many applications. The LF444 should be used wherever low power dissipation and good electrical characteristics are the major considerations.


  • ¼ supply current of a LM148: 200 µA/Amplifier (max)
  • Low input bias current: 50 pA (max)
  • High gain bandwidth: 1 MHz
  • High slew rate: 1 V/µs
  • Low noise voltage for low power
  • Low input noise current
  • High input impedance: 1012
  • High gain: 50k (min)

BI-FET™ and BI-FET II™ are trademarks of National Semiconductor Corporation.


他の製品と比較 汎用オペアンプ メール Excelへダウンロード
Part number オーダー・オプション 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
LF444 ご注文 4     6     36     1     1     In to V+     5     0.15     35     Catalog     0 to 70     PDIP | 14
SOIC | 14    
14PDIP: 52 mm2: 8.26 x 6.35 (PDIP | 14)
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)    
10         50     100     14     FET