OPA381AIDGKR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics:
  • Low offset voltage
  • High gain bandwidth product
  • Rail-to-rail input and output
  • Single-supply operation
• Package: VSSOP-8
• Essence: Precision operational amplifier
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Offset Voltage: ±150µV (maximum)
• Gain Bandwidth Product: 10MHz (typical)
• Slew Rate: 6V/µs (typical)
• Input Bias Current: ±1nA (maximum)
• Output Current: ±40mA (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA381AIDGKR has the following pin configuration:

___________ OUT | 1 6 | V- IN+ | 2 5 | V+ IN- | 3 4 | NC |___________|

Functional Features

• Low offset voltage ensures accurate amplification of small signals.
• High gain bandwidth product allows for amplification of high-frequency signals.
• Rail-to-rail input and output capability enables maximum signal swing.
• Single-supply operation simplifies circuit design and reduces cost.

Advantages and Disadvantages

Advantages: - Low offset voltage enhances precision in signal amplification. - High gain bandwidth product enables amplification of a wide range of frequencies. - Rail-to-rail input and output provides maximum signal swing. - Single-supply operation simplifies circuit design.

Disadvantages: - Limited output current may restrict certain applications. - Higher supply voltage may be required for specific use cases.

Working Principles

The OPA381AIDGKR is a precision operational amplifier that amplifies small input signals with high accuracy. It utilizes a differential input stage, followed by gain stages and an output stage. The low offset voltage ensures minimal error in signal amplification, while the high gain bandwidth product allows for amplification of high-frequency signals. The rail-to-rail input and output capability enables maximum signal swing, even when operating with a single supply voltage.

Detailed Application Field Plans

The OPA381AIDGKR is commonly used in various applications, including: 1. Sensor signal conditioning: Amplifying and conditioning signals from sensors such as temperature, pressure, or light sensors. 2. Audio amplification: Enhancing audio signals in portable devices, headphones, and audio systems. 3. Medical instrumentation: Precisely amplifying bioelectric signals for medical monitoring and diagnostic equipment. 4. Industrial control systems: Providing accurate signal amplification in control systems for process automation and robotics. 5. Test and measurement equipment: Amplifying and processing signals in oscilloscopes, data acquisition systems, and signal generators.

Detailed and Complete Alternative Models

1. OPA380AIDBVR: Similar to OPA381AIDGKR but available in SOT23-5 package.
2. OPA382AIDBVT: Dual-channel version of OPA381AIDGKR, available in SOT23-6 package.
3. OPA383AIDBVR: Rail-to-rail input/output operational amplifier with lower power consumption, available in SOT23-5 package.

These alternative models offer similar functionality and characteristics, providing options based on different package requirements or power consumption considerations.

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