LF444QML Datasheet, PDF (1/15 Pages) Texas Instruments – LF444QML Quad Low Power JFET Input Operational Amplifier

LF444QML
www.ti.com
SNOSAO9 – DECEMBER 2010
LF444QML Quad Low Power JFET Input Operational Amplifier
Check for Samples: LF444QML
FEATURES
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•23 1/4 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 35 nV/√Hz
• Low Input Noise Current 0.01 pA/√Hz
• High Input Impedance: 10¹²Î©
• High Gain, V_O = ±10V, R_L = 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.
Connection Diagram
Figure 1. CDIP - Top View
See Package Number NAK0014D
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
BI-FET is a trademark of Texas Instruments.
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All other trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated