OPA4141AID

Voltage - Input Offset:	1mV
Base Part Number:	OPA4141
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	4.5 V ~ 36 V, ±2.25 V ~ 18 V
Current - Output / Channel:	36mA
Current - Supply:	1.8mA
Series:	--
Current - Input Bias:	2pA
Gain Bandwidth Product:	10MHz
Slew Rate:	20 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	4
Amplifier Type:	J-FET
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

OPA4141AID - Instrumentation Amplifier\'s Application Field and Working Principle

OPA4141AID is an instrumentation amplifier manufactured by Texas Instruments. It is an operational-amplifier integrated circuit that converts small differential signals into a larger common-mode signal. It features an improved high common-mode rejection ratio, which allows the amplifier to filter out noise, hum, etc. The amplifier is mainly used in medical, communication, automotive, and aerospace applications. It is often used to measure bio-electric signals (ECG, EEG, EOG, etc.).

Features

The OPA4141AID amplifier offers several advantageous features. These include:

• Wide bandwidth – up to 40 MHz
• High common-mode rejection ratio up to 94.5 dB
• Wide supply voltage range (4.5 V to 36 V)
• Low input bias current of 2.2 pA
• Very low input offset voltage of 4 mV
• Excellent output drive capability
• High input impedance – up to 1.5 GΩ
• High output impedance – up to 1 MΩ

Application Fields

The OPA4141AID can be used in a variety of application fields. These include:

• Test and measurement equipment
• Medical devices
• Communication systems
• Automotive systems
• Aerospace and defense systems
• Energy and power management systems
• Industrial devices

Working Principle

The OPA4141AID is an integrated circuit containing four operational amplifiers (op-amp). In essence, it is an instrumentation amplifier using a differential-input stage and a common-mode feedback. The amplifier consists of two input stages, two sets of gain-setting resistors, and a common-mode feedback loop. The differential-input stage consists of two op-amps connected in a differential-input configuration. This configuration allows the amplifier to accept dual differential input signals, providing a gain of two. The gain-setting resistors, R1 and R2, set the input stage\'s amplification factor. The common-mode feedback loop keeps the two input stages in balance, eliminating common-mode noise and distortion. The common-mode feedback loop consists of two sections: a resistor network and an op-amp. The resistor network consists of resistors R3, R4, R5 and R6. The resistors R3 and R4 set the feedback loop\'s gain, while the resistors R5 and R6 set the loop\'s current offset. The loop\'s op-amp is responsible for the common-mode rejection ratio. The output of the amplifier is a single-ended signal, which is amplified by the amplifier\'s gain stages. The output is buffered by an op-amp and then amplified by the amplifier\'s output stage. The amplifier\'s output stage is responsible for providing a stable output voltage and driving the output signal to the required level. The OPA4141AID is a highly accurate and reliable instrumentation amplifier, which is suitable for a variety of applications. The amplifier offers good dynamic performance, wide bandwidth, high common-mode rejection ratio, high input impedance and low input bias current, enabling it to accurately amplify a variety of signals.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description