OPA2889ID

Overview

Category: Integrated Circuit (IC)

Use: Operational Amplifier

Characteristics: - High-speed, low-noise operational amplifier - Wide bandwidth and high slew rate - Low distortion and low offset voltage - Rail-to-rail input and output - Single-supply operation - Low quiescent current

Package: SOIC-8

Essence: The OPA2889ID is a high-performance operational amplifier designed for various applications that require high-speed and low-noise amplification.

Packaging/Quantity: The OPA2889ID is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Offset Voltage: ±0.5mV (max)
• Gain Bandwidth Product: 1.4GHz (typ)
• Slew Rate: 1800V/µs (typ)
• Input Noise Voltage: 3.6nV/√Hz (typ)
• Input Bias Current: ±1pA (max)
• Quiescent Current: 3.5mA (typ)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The OPA2889ID has the following pin configuration:

___________ OUT | 1 8 | VCC+ IN+ | 2 7 | IN- IN- | 3 6 | NC VCC-| 4 5 | NC |___________|

Functional Features

• High-speed amplification: The OPA2889ID offers a wide bandwidth and high slew rate, making it suitable for applications requiring fast signal processing.
• Low noise and distortion: With low input noise voltage and low distortion characteristics, the OPA2889ID ensures accurate amplification of signals without introducing significant noise or distortion.
• Rail-to-rail operation: The operational amplifier supports rail-to-rail input and output voltage range, allowing it to handle signals close to the supply rails.
• Single-supply operation: The OPA2889ID can operate from a single power supply, simplifying the design and reducing system complexity.
• Low quiescent current: The amplifier has a low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High-speed performance - Low noise and distortion - Wide operating voltage range - Rail-to-rail operation - Single-supply operation - Low quiescent current

Disadvantages: - Limited availability in alternative packages - Relatively higher cost compared to some other operational amplifiers

Working Principles

The OPA2889ID is based on a high-performance operational amplifier architecture. It utilizes advanced circuitry to achieve high-speed amplification with low noise and distortion. The rail-to-rail input and output capability allows it to handle signals close to the supply rails, while the single-supply operation simplifies the overall system design. The low quiescent current ensures efficient power consumption, making it suitable for battery-powered applications.

Application Field Plans

The OPA2889ID is commonly used in various applications, including: 1. Audio amplification: The high-speed and low-distortion characteristics make it ideal for audio amplification in professional audio equipment, musical instruments, and home theater systems. 2. Communications systems: The wide bandwidth and low noise make it suitable for use in communication systems such as wireless transceivers, base stations, and satellite communication equipment. 3. Test and measurement equipment: The OPA2889ID's high-speed performance and low noise make it suitable for use in oscilloscopes, signal generators, and other test and measurement instruments. 4. Medical equipment: The amplifier's low noise and distortion characteristics are beneficial in medical imaging systems, patient monitoring devices, and other medical equipment requiring accurate signal amplification.

Alternative Models

Some alternative models that can be considered as substitutes for the OPA2889ID include: - OPA2189ID: Similar performance characteristics with a different pin configuration (SOIC-8 package) - OPA827ID: Lower noise and distortion characteristics but slightly lower bandwidth (SOIC-8 package) - OPA1612ID: Higher bandwidth and lower distortion but higher cost (SOIC-8 package)

These alternative models provide similar functionality and can be chosen based on specific application requirements and availability.

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