OPA145IDBVT - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Operational Amplifier

Characteristics: - Low-power, high-speed operational amplifier - Rail-to-rail input and output - Wide supply voltage range: 2.7V to 5.5V - Low quiescent current: 500µA per channel - Unity-gain stable - Small package size: SOT-23-6

Package: SOT-23-6

Essence: OPA145IDBVT is a low-power operational amplifier designed for various applications that require high-speed performance and rail-to-rail operation.

Packaging/Quantity: The OPA145IDBVT is typically sold in reels of 3000 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Offset Voltage: ±1mV (maximum)
• Gain Bandwidth Product: 10MHz
• Slew Rate: 4V/µs
• Input Bias Current: ±1nA (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA145IDBVT has a total of six pins arranged as follows:

___________ V+ --| |-- V- IN+--| |-- OUT IN- --| | NC --| | GND --|___________|

Pin Description: - V+: Positive power supply - V-: Negative power supply - IN+: Non-inverting input - IN-: Inverting input - OUT: Output - NC: No connection (unused pin) - GND: Ground

Functional Features

• Low Power Consumption: The OPA145IDBVT operates at a low quiescent current of 500µA per channel, making it suitable for battery-powered applications.
• High-Speed Performance: With a gain bandwidth product of 10MHz and a slew rate of 4V/µs, this operational amplifier can handle high-frequency signals accurately.
• Rail-to-Rail Operation: The input and output voltage ranges cover the entire supply voltage range, allowing for maximum utilization of the available dynamic range.

Advantages and Disadvantages

Advantages: - Low power consumption - High-speed performance - Rail-to-rail operation - Small package size

Disadvantages: - Limited supply voltage range (2.7V to 5.5V) - Input offset voltage may affect precision applications

Working Principles

The OPA145IDBVT is an operational amplifier that amplifies the difference between its two input voltages. It utilizes a differential amplifier configuration to achieve high gain and accuracy. The rail-to-rail input and output stages allow the amplifier to operate with minimal distortion even when the input signal approaches the supply rails.

Detailed Application Field Plans

The OPA145IDBVT is commonly used in various applications, including but not limited to: 1. Portable audio devices 2. Battery-powered instrumentation 3. Sensor signal conditioning 4. Active filters 5. Data acquisition systems

Detailed and Complete Alternative Models

1. OPA140IDBVT: Similar specifications and features, but with a lower gain bandwidth product of 4MHz.
2. OPA147IDBVT: Higher gain bandwidth product of 20MHz, suitable for higher frequency applications.
3. OPA148IDBVT: Dual-channel version of OPA145IDBVT, providing two independent amplifiers in one package.

These alternative models offer different trade-offs in terms of performance and specifications, allowing users to choose the most suitable option for their specific application requirements.

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