LF444CMX

更新时间： 2024-09-13 12:05:51

品牌	Logo	应用领域
德州仪器 - TI		运算放大器
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LF444 Quad Low Power JFET Input Operational Ampli

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LF444CMX 数据手册

LF444

www.ti.com

SNOSC04D –MAY 1998–REVISED MARCH 2013

LF444 Quad Low Power JFET Input Operational Amplifier

Check for Samples: LF444

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 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.

•

¼ 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 35 nV/√Hz

Low Input Noise Current 0.01 pA/√Hz

High Input Impedance: 10¹²Ω

High Gain: 50k (min)

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.

Simplified Schematic

Connection Diagram

Figure 1. 1/4 Quad

Figure 2. PDIP/SOIC Package

Top View

See Package Number NAK0014D, D0014A or

NFF0014A

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

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.

All other trademarks are the property of their respective owners.

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.

12 3 4 5 6 7...18

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LF444CMX 替代型号

型号	品牌	替代类型	描述	数据表
LF444CMX/NOPB	TI	完全替代	LF444 Quad Low Power JFET Input Operational Ampli
LF444CM	TI	类似代替	LF444 Quad Low Power JFET Input Operational Ampli
LF444CM/NOPB	TI	类似代替	LF444 Quad Low Power JFET Input Operational Ampli

与LF444CMX相关器件

型号	品牌	获取价格	描述	数据表
LF444CMX/NOPB	TI	获取价格	LF444 Quad Low Power JFET Input Operational Ampli
LF444CN	NSC	获取价格	Quad Low Power JFET Input Operational Amplifier
LF444CN	ONSEMI	获取价格	LOW POWER JFET INPUT OPERATIONAL AMPLIFIERS
LF444CN	MOTOROLA	获取价格	LOW POWER JFET INPUT OPERATIONAL AMPLIFIERS
LF444CN	TI	获取价格	LF444 Quad Low Power JFET Input Operational Ampli
LF444CN/A+	ETC	获取价格	Voltage-Feedback Operational Amplifier
LF444CN/B+	ETC	获取价格	Voltage-Feedback Operational Amplifier
LF444CN/NOPB	TI	获取价格	LF444 Quad Low Power JFET Input Operational Ampli
LF444CWM	ETC	获取价格	Voltage-Feedback Operational Amplifier
LF444CWMX	TI	获取价格	QUAD OP-AMP, 12000uV OFFSET-MAX, 1MHz BAND WIDTH, PDSO14, 0.300 INCH, PLASTIC, SOP-14

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