AD8138AR

Product Overview

Category: Integrated Circuit (IC)
Use: Amplifier
Characteristics: High-speed, differential amplifier
Package: 8-pin SOIC (Small Outline Integrated Circuit)
Essence: Provides high-performance amplification for differential signals
Packaging/Quantity: Available in reels of 2500 units

Specifications

Supply Voltage Range: ±5V to ±15V
Bandwidth: 200 MHz
Slew Rate: 2200 V/μs
Input Offset Voltage: ±1 mV
Input Bias Current: ±2 μA
Output Current: ±50 mA
Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AD8138AR has the following pin configuration:

```

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

Functional Features

High-speed differential amplification
Low distortion and noise
Wide bandwidth for accurate signal reproduction
Differential-to-single-ended conversion capability
Adjustable gain and offset control
Internal compensation for stability

Advantages

High-speed performance allows for accurate amplification of fast-changing signals
Low distortion and noise ensure faithful signal reproduction
Versatile differential-to-single-ended conversion capability
Adjustable gain and offset control provides flexibility in signal conditioning
Internal compensation ensures stability in various operating conditions

Disadvantages

Limited output current may not be suitable for driving heavy loads
Requires external power supply for operation
Higher cost compared to basic operational amplifiers

Working Principles

The AD8138AR is a high-speed differential amplifier that amplifies the voltage difference between its two input pins. It utilizes a combination of internal transistors and resistors to achieve high gain and bandwidth. The amplifier can be configured for differential-to-single-ended conversion by connecting one input pin to a reference voltage. The gain and offset can be adjusted using external resistors.

Application Field Plans

The AD8138AR is commonly used in applications that require high-speed amplification of differential signals, such as:

Video transmission systems
Communication equipment
Instrumentation and measurement devices
Medical imaging systems
Data acquisition systems

Alternative Models

AD8138ACPZ: 20-lead LFCSP package, same specifications as AD8138AR
AD8138ARZ: 8-pin SOIC package, same specifications as AD8138AR
AD8138ACPZ-R7: RoHS-compliant version of AD8138ACPZ
AD8138ARZ-R7: RoHS-compliant version of AD8138ARZ

These alternative models offer the same functionality and performance as the AD8138AR but come in different package options to suit specific design requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AD8138AR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of AD8138AR in technical solutions:

Q: What is AD8138AR? A: AD8138AR is a high-speed differential amplifier designed for applications requiring wide bandwidth, high slew rate, and low distortion.
Q: What are the key features of AD8138AR? A: The key features of AD8138AR include a bandwidth of 270 MHz, a slew rate of 2200 V/μs, low distortion, and a wide supply voltage range.
Q: What are some typical applications of AD8138AR? A: AD8138AR is commonly used in video distribution systems, professional video cameras, medical imaging equipment, and high-speed data acquisition systems.
Q: Can AD8138AR operate with a single power supply? A: No, AD8138AR requires dual power supplies. It operates with a positive and negative supply voltage.
Q: What is the input voltage range of AD8138AR? A: The input voltage range of AD8138AR is typically ±2 V, but it can handle higher voltages with reduced performance.
Q: Does AD8138AR have built-in protection features? A: Yes, AD8138AR has built-in overvoltage protection on its inputs, which helps prevent damage from excessive input voltages.
Q: Can AD8138AR be used in high-temperature environments? A: Yes, AD8138AR is specified to operate over a temperature range of -40°C to +85°C, making it suitable for various industrial applications.
Q: What is the output current capability of AD8138AR? A: AD8138AR can deliver up to ±50 mA of output current, allowing it to drive capacitive loads and long cables.
Q: Does AD8138AR require external compensation components? A: No, AD8138AR is internally compensated and does not require any external compensation components.
Q: Can AD8138AR be used in single-ended to differential conversion applications? A: Yes, AD8138AR can be used for single-ended to differential conversion by connecting one input to ground and using the other input as the single-ended signal input.

Please note that these answers are general and may vary depending on specific application requirements.