LF444ACN/NOPB National Semiconductor, LF444ACN/NOPB Datasheet

LF444ACN/NOPB

Manufacturer Part Number

LF444ACN/NOPB

Description

IC OP AMP QUAD LO PWR JFET 14DIP

Manufacturer

National Semiconductor

Series

BI-FET™r

Datasheet

1.LF444CNNOPB.pdf (4 pages)

Specifications of LF444ACN/NOPB

Amplifier Type

J-FET

Number Of Circuits

Slew Rate

1 V/µs

Gain Bandwidth Product

1MHz

Current - Input Bias

10pA

Voltage - Input Offset

2000µV

Current - Supply

600µA

Voltage - Supply, Single/dual (±)

10 V ~ 44 V, ±5 V ~ 22 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Through Hole

Package / Case

14-DIP (0.300", 7.62mm)

Bandwidth

1 MHz

Channel Separation

-120

Common Mode Rejection Ratio

100

Current, Input Bias

10 pA

Current, Input Offset

5 pA

Current, Output

8 mA

Current, Supply

0.6 mA

Impedance, Thermal

85 °C/W

Number Of Amplifiers

Quad

Package Type

DIP-14

Power Dissipation

670 mW

Resistance, Input

10^12 Ohms

Temperature, Operating, Range

0 to +70 °C

Voltage, Gain

100 V/mV

Voltage, Input

6 to 44 V

Voltage, Noise

35 nV/sqrt Hz

Voltage, Offset

2 mV

Voltage, Output, High

13 V

Voltage, Output, Low

-13 V

Voltage, Supply

±19 V

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Output Type

Current - Output / Channel

-3db Bandwidth

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

Other names

*LF444ACN

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LF444

Quad Low Power JFET Input Operational Amplifier

General Description

The LF444 quad low power operational amplifier provides

many of the same AC characteristics as the industry stan-

dard 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 appli-

cations. The LF444 should be used wherever low power

dissipation and good electrical characteristics are the major

considerations.

Simplified Schematic

Ordering Information

LF444XYZ

X indicates electrical grade

Y indicates temperature range

BI-FET

“M” for military, “C” for commercial

™

and BI-FET II

™

are trademarks of National Semiconductor Corporation.

1/4 Quad

DS009156

00915601

Features

n Low input bias current: 50 pA (max)

n High gain bandwidth: 1 MHz

n High slew rate: 1 V/µs

n Low noise voltage for low power

n Low input noise current

n High input impedance: 10

n High gain: 50k (min)

Z indicates package type “D”, “M” or “N”

Connection Diagram

⁄

See NS Package Number D14E, M14A or N14A

supply current of a LM148:

LF444ACN, LF 444CN or LF444MD/883

Order Number LF444CM, LF444CMX,

Dual-In-Line Package

Top View

Ω

200 µA/Amplifier (max)

00915602

Related parts for LF444ACN/NOPB

LF444ACN/NOPB Summary of contents

Page 1

... LF444XYZ X indicates electrical grade Y indicates temperature range “M” for military, “C” for commercial BI-FET ™ and BI-FET II ™ are trademarks of National Semiconductor Corporation. © 2004 National Semiconductor Corporation Features 1 ⁄ supply current of a LM148 Low input bias current (max) n High gain bandwidth: 1 MHz n High slew rate: 1 V/µ ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. LF444A ± Supply Voltage 22V ± Differential Input Voltage 38V ± Input Voltage Range 19V (Note 1) Output Short Circuit Continuous Duration (Note 2) ...

Page 3

AC Electrical Characteristics Symbol Parameter Amplifier-to-Amplifier Coupling SR Slew Rate GBW Gain-Bandwidth Product e Equivalent Input Noise Voltage n i Equivalent Input Noise Current n Note 1: Unless otherwise specified the absolute maximum negative input voltage is equal to the ...

Page 4

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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