LM124AJ

Name: LM124AJ
Brand: Texas Instruments
Rating: 4.5 (10 reviews)
Author: Lisleapex

Operational Amplifiers - Op Amps Quadruple Operational Amplifier 14-CDIP -55 to 125

1,000 Effective Inventory

LM124AJ

Effective Inventory1,000

Operational Amplifiers - Op Amps Quadruple Operational Amplifier 14-CDIP -55 to 125

Manufacturer Part # : LM124AJ
Other Name : LM124AJ/PB
Package/Case: CDIP-14
Brand: Texas Instruments
Product Categories : Instrumentation, OP Amps, Buffer Amps
Series : LM124

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LM124AJ DataSheet

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LM124AJ Details

The LM124AJ is a quad operational amplifier (op-amp) from Texas Instruments, known for its versatility and high performance in various analog circuit applications. This op-amp offers low input offset voltage, high gain bandwidth product, and low input bias current, making it suitable for precision amplification tasks.

Pinout

1 (OUT1): Output 1
2 (IN-): Inverting Input
3 (IN+): Non-Inverting Input
4 (VCC+): Positive Power Supply
5 (VCC-): Negative Power Supply
6 (OUT2): Output 2
7 (OUT3): Output 3
8 (OUT4): Output 4

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Low Input Offset Voltage: Minimizes errors in amplification tasks.
High Gain Bandwidth Product: Enables amplification of high-frequency signals.
Low Input Bias Current: Reduces signal distortion in amplification circuits.
Quad Op-Amp: Contains four independent op-amps in a single package for convenience.
Wide Supply Voltage Range: Operates over a wide range of supply voltages for flexibility.

Application

Signal Conditioning: Used for signal amplification and filtering in sensor interfaces.
Active Filters: Suitable for active filter circuits due to high gain bandwidth product.
Instrumentation Amplifiers: Ideal for precision amplification in instrumentation applications.

Where to Use

The LM124AJ is well-suited for applications requiring precision amplification and versatility in analog circuits. It is commonly used in signal conditioning, active filters, and instrumentation amplifiers for accurate signal processing.

How to Use

Connect the LM124AJ to your circuit by providing power supplies to VCC+ and VCC-, and input signals to the non-inverting (IN+) and inverting (IN-) inputs. Use the outputs (OUT1-OUT4) as needed for amplification tasks. Ensure proper decoupling and grounding for optimal performance. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the LM124AJ demonstrates how to implement the quad op-amp in a typical analog circuit setup. It includes connections for power supplies, input signals, and output configurations for various applications.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

LM324: Similar quad op-amp offering comparable performance and functionality.
UA741: General-purpose op-amp with widespread use in analog circuits.

Complementary

The LM124AJ can be complemented by the LM358, a dual op-amp providing additional amplification capabilities for more complex circuits. Ensure compatibility and matching characteristics when combining op-amps for optimal performance.

Frequently Asked Questions

Q: What is the typical input offset voltage of the LM124AJ?

A: The LM124AJ has a typical input offset voltage in the range of a few millivolts. Consult the datasheet for precise values and variations.

Q: Can the LM124AJ be used in audio amplifier circuits?

A: While primarily designed for general-purpose analog applications, the LM124AJ can be used in audio amplifier circuits with appropriate signal conditioning and filtering considerations.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Number of channels	4	Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	32
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	16	Rail-to-rail	In to V-
GBW (typ) (MHz)	1.2	Slew rate (typ) (V/µs)	0.5
Vos (offset voltage at 25°C) (max) (mV)	2	Iq per channel (typ) (mA)	0.175
Vn at 1 kHz (typ) (nV√Hz)	35	Rating	Military
Operating temperature range (°C)	-55 to 125	Offset drift (typ) (µV/°C)	7
Input bias current (max) (pA)	150000	CMRR (typ) (dB)	80
Iout (typ) (A)	0.04	Architecture	Bipolar
Input common mode headroom (to negative supply) (typ) (V)	0	Input common mode headroom (to positive supply) (typ) (V)	-1.5
Output swing headroom (to negative supply) (typ) (V)	0.005	Output swing headroom (to positive supply) (typ) (V)	-2

FAQs

What is LM124AJ?

The LM124AJ is a quad, low-power, general-purpose operational amplifier manufactured by Texas Instruments. It is designed for a wide range of applications requiring low input offset voltage, low input bias current, and high open-loop gain.

How Does LM124AJ Work?

The LM124AJ functions as a general-purpose operational amplifier that amplifies input signals with high accuracy and stability. It is versatile and can be used in various circuit configurations for amplification, filtering, and signal conditioning purposes. The amplifier features a large open-loop gain and low input offset voltage for precision applications.

How Many Pins does LM124AJ have and What are the Functions of the Pinout Configuration?

The LM124AJ is housed in a 14-lead PDIP (Plastic Dual In-Line Package) package. The pinout configuration includes:

V+: Positive power supply pin.
V-: Negative power supply pin.
IN1: Non-inverting input for amplifier 1.
IN1-: Inverting input for amplifier 1.
OUT1: Output for amplifier 1.
IN2, IN2-, OUT2: Pins for amplifier 2, with similar functions to amplifier 1.
IN3, IN3-, OUT3: Pins for amplifier 3, with similar functions to amplifier 1.
IN4, IN4-, OUT4: Pins for amplifier 4, with similar functions to amplifier 1.

What are the Pros and Cons of LM124AJ?

Pros:

Quad Op-Amp: Contains four operational amplifiers in a single package, saving board space.
Low Power Consumption: Operates with low power consumption, suitable for battery-powered devices.
High Gain Bandwidth: Provides high gain bandwidth for various signal processing applications.
Wide Supply Voltage Range: Supports a wide supply voltage range for flexibility in power supply selection.
Low Input Offset Voltage: Ensures accurate signal processing with minimal error.

Cons:

Package Size: The 14-lead PDIP package may be larger compared to more modern packages, requiring more board space.
Limited Slew Rate: May have a limited slew rate compared to newer operational amplifiers.
No Rail-to-Rail Operation: Does not offer rail-to-rail input and output capabilities.

Are There Any Equivalents/Alternatives to LM124AJ for Recommendation?

The LM324 from Texas Instruments is a similar quad operational amplifier with comparable performance.
Alternatives to the LM124AJ include the MC33078 from ON Semiconductor and the CA3240 from Intersil.