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LF444 Datasheet Quad Low Power JFET Input Operational Amplifier

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LF444 Quad Low Power JFET Input Operational Amplifier May 1998 LF444 Quad Low Power JFET Input Operational.

General 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.

Key Features

  • n n n n n 1⁄4 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 n Low input noise current n High input impedance: 1012Ω n High gain VO = ± 10V, RL = 10k: 50k (min) Simplified Schematic 1/4 Quad Connection Diagram Dual-In-Line Package DS009156-2 DS009156-1 Ordering Information LF444XYZ X indicates electrical grade Y indicates temperature range “M” for military, “C” for comm.

Similar Datasheet

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More Datasheets from National Semiconductor (now Texas Instruments)

Part Number Description
LF441 Low Power JFET Input Operational Amplifier
LF442 Dual Low Power JFET Input Operational Amplifier
LF401 PRECISION FAST SETTLING JFET INPUT OPERATIONAL AMPLIFIER
LF401A PRECISION FAST SETTLING JFET INPUT OPERATIONAL AMPLIFIER
LF411 Low Offset/ Low Drift JFET Input Operational Amplifier
LF412 Low Offset/ Low Drift Dual JFET Input Operational Amplifier
LF451 LF451 Wide-Bandwidth JFET-Input Operational Amplifier
LF453 LF453 Wide-Bandwidth Dual JFET-Input Operational Amplifiers

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