Datasheet Texas Instruments LF444QML — 数据表

LF444QML
www.ti.com SNOSAO9 – DECEMBER 2010 LF444QML Quad Low Power JFET Input Operational Amplifier
Check for Samples: LF444QML FEATURES DESCRIPTION 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 kО© 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. 1 23 1/4 Supply Current of a LM148: 250
ОјA/Amplifier (Max)
Low Input Bias Current: 100 pA (max)
High Gain Bandwidth: 1 MHz
High Slew Rate: 1 V/Ојs
Low Noise Voltage for Low Power 35 nV/в€љHz
Low Input Noise Current 0.01 pA/в€љHz
High Input Impedance: 1012О©
High Gain, VO = ±10V, RL = 10kΩ: 25K (Min) The LF444 is pin compatible with the LM148 allowing
an immediate 4 times reduction in power drain in …