OPA277UA

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OPA277UA

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規格

Package Bulk,Tube
ProductStatus Active
AmplifierType General Purpose
NumberofCircuits 1
SlewRate 0.8V/µs
GainBandwidthProduct 1 MHz
Current-InputBias 500 pA
Voltage-InputOffset 20 µV
Current-Supply 790µA
Current-Output/Channel 35 mA
Voltage-SupplySpan(Min) 4 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The OPA277UA is a precision operational amplifier known for its low offset voltage and low drift. It is part of the OPA277 series from Texas Instruments, designed to provide high-performance analog signal processing with excellent stability and accuracy. Key features include a low input offset voltage of typically 10 µV, low noise, and a wide supply voltage range of ±2.5V to ±18V, making it suitable for various applications including sensor signal conditioning, data acquisition, and instrumentation.
The OPA277UA offers a wide bandwidth of 1 MHz and a slew rate of 0.8 V/µs, ensuring good dynamic response. It is a single-channel device housed in an SOIC-8 package, providing ease of integration in standard circuit board layouts. Its low bias current and low thermal drift enhance performance in precision applications.
With a high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR), the OPA277UA delivers consistent performance even in noisy environments. Overall, this operational amplifier is ideal for applications demanding precision, stability, and reliability, such as medical instrumentation, industrial controls, and scientific measurement equipment.

Features

The OPA277UA is a precision operational amplifier known for its low offset voltage and drift, which makes it ideal for applications requiring high accuracy and stability. Key features include:
1. Low Offset Voltage: It typically offers an offset voltage of 10µV, which helps in maintaining high precision in output.

2. Low Drift: The device has a drift rating of 0.1µV/°C, ensuring minimal variation in offset voltage across temperature changes.
3. Wide Supply Voltage Range: It can operate within a wide supply voltage range of ±2V to ±18V, providing flexibility for various applications.
4. Low Bias Current: The bias current is very low, typically around 1.2nA, which minimizes input loading and maintains signal integrity.
5. High Open-Loop Gain: The OPA277UA features a high open-loop gain of 130dB, ensuring accurate amplification of differential input signals.
6. Low Noise: It has low noise characteristics of 0.6µVpp (0.1Hz to 10Hz), making it suitable for low-level signal processing.
7. Unity-Gain Bandwidth: The amplifier offers a bandwidth of 1MHz, which supports a variety of bandwidth-sensitive applications.
These features make the OPA277UA an excellent choice for precision instrumentation, data acquisition systems, and industrial control applications.

Package

The OPA277UA is an operational amplifier from Texas Instruments. It comes in an SOIC-8 (Small Outline Integrated Circuit) package type.

Pinout

The OPA277UA is an operational amplifier from Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of the pin functions:
1. Pin 1 (Offset Null/V+IN): Used for offset voltage nulling or as a non-inverting input.
2. Pin 2 (Inverting Input, -IN): The inverting input terminal.
3. Pin 3 (Non-Inverting Input, +IN): The non-inverting input terminal.
4. Pin 4 (V-): Negative power supply voltage.
5. Pin 5 (Offset Null): Used for offset voltage nulling.
6. Pin 6 (Output): The output of the amplifier.
7. Pin 7 (V+): Positive power supply voltage.
8. Pin 8 (No Connection): Typically not connected or used for trimming.
The OPA277UA is known for its precision, low offset voltage, low offset drift, low noise, and wide supply voltage range, making it suitable for precision instrumentation and sensor applications.

Manufacturer

The OPA277UA is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. They serve a wide range of industries, including automotive, industrial, personal electronics, and communications. TI is known for its broad portfolio of analog and embedded processing products, which are used in electronic systems worldwide.

Application

The OPA277UA is a precision operational amplifier with applications in areas requiring high accuracy and stability. These include precision data acquisition systems, medical instruments, sensor signal conditioning, instrumentation, and industrial process control. Its low offset voltage, low drift, and low noise make it ideal for applications where precise measurement and control are crucial.

Equivalent

The OPA277UA is a precision operational amplifier. Equivalent products include:
1. AD8671 from Analog Devices
2. LT1013 from Analog Devices (consider its specifications for compatibility)
3. OP07 from Analog Devices and Texas Instruments
4. MAX44251 from Maxim Integrated
These equivalents should be verified for specific application requirements as they may differ in certain specifications or features.

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