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LF444QML
  • LF444QML
  • LF444QML
  • LF444QML

LF444QML

ACTIVE

Military-grade, quad, 30-V, 1-MHz, low-power operational amplifier

Texas Instruments LF444QML Product Info

1 April 2026 0

Parameters

Number of channels

4

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

18

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

6

Rail-to-rail

No

GBW (typ) (MHz)

1

Slew rate (typ) (V/µs)

1

Vos (offset voltage at 25°C) (max) (mV)

10

Iq per channel (typ) (mA)

0.15

Vn at 1 kHz (typ) (nV√Hz)

35

Rating

Military

Operating temperature range (°C)

-55 to 125

Offset drift (typ) (µV/°C)

10

Input bias current (max) (pA)

100

CMRR (typ) (dB)

100

Iout (typ) (A)

0.02

Architecture

FET

Input common mode headroom (to negative supply) (typ) (V)

3

Input common mode headroom (to positive supply) (typ) (V)

-1

Output swing headroom (to negative supply) (typ) (V)

2

Output swing headroom (to positive supply) (typ) (V)

-2

Package

CDIP_SB (NAK)-14-117.3753 mm² 18.03 x 6.51

Features

  • ¼ supply current of a LM148:  250 μA/Amplifier (max)
  • Low input bias current: 100 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: 10 12 Ω
  • High gain, VO = ±10V, RL = 10KΩ: 25K (min)

  • ¼ supply current of a LM148:  250 μA/Amplifier (max)
  • Low input bias current: 100 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: 10 12 Ω
  • High gain, VO = ±10V, RL = 10KΩ: 25K (min)

  • 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 kΩ 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.


    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 kΩ 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.