規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Obsolete |
| AmplifierType | General Purpose |
| NumberofCircuits | 2 |
| OutputType | Rail-to-Rail |
| SlewRate | 3V/µs |
| GainBandwidthProduct | 1.9 MHz |
| -3dbBandwidth | 1.9 MHz |
| Current-InputBias | 2 pA |
| Voltage-InputOffset | 400 µV |
| Current-Supply | 1.24mA |
| Current-Output/Channel | 20 mA |
| Voltage-SupplySpan(Min) | 5 V |
| Voltage-SupplySpan(Max) | 30 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The AD822AR is a high-performance instrumentation amplifier designed by Analog Devices. It is known for its precision, low noise, and high gain capabilities, making it ideal for a variety of applications that require accurate amplification of small differential signals, such as in medical instrumentation, data acquisition, and industrial process controls.
Key features of the AD822AR include:
1. Wide Supply Range: It operates with a wide supply voltage range, allowing for greater flexibility in circuit design.
2. Low Noise: The amplifier boasts low noise performance, enhancing signal integrity in low-level signal applications.
3. High CMRR: It offers a high Common-Mode Rejection Ratio (CMRR), crucial for minimizing interference from external noise sources.
4. Adjustable Gain: The gain can be easily adjusted using external resistors, providing versatility in various applications.
5. Small Package: Available in a small, surface-mount package, the AD822AR is suitable for compact circuit designs.
Overall, the AD822AR is a reliable choice for applications requiring high precision and low noise signal conditioning.
Key features of the AD822AR include:
1. Wide Supply Range: It operates with a wide supply voltage range, allowing for greater flexibility in circuit design.
2. Low Noise: The amplifier boasts low noise performance, enhancing signal integrity in low-level signal applications.
3. High CMRR: It offers a high Common-Mode Rejection Ratio (CMRR), crucial for minimizing interference from external noise sources.
4. Adjustable Gain: The gain can be easily adjusted using external resistors, providing versatility in various applications.
5. Small Package: Available in a small, surface-mount package, the AD822AR is suitable for compact circuit designs.
Overall, the AD822AR is a reliable choice for applications requiring high precision and low noise signal conditioning.
Equivalent
The AD822AR is an instrumentation amplifier. Equivalent products include the INA118 from Texas Instruments, MAX4194 from Maxim Integrated, and LT1167 from Analog Devices. These alternatives offer similar functionalities, such as high CMRR, low offset voltage, and rail-to-rail output, making them suitable for precise signal conditioning applications. However, always check the specific datasheets to ensure compatibility with your application requirements.
Features
The AD822AR is a precision instrumentation amplifier known for its high performance and reliability in various applications. Here are its key features:
1. High Precision: Offers low offset voltage and low offset voltage drift, ensuring accurate signal amplification.
2. High Common-Mode Rejection Ratio (CMRR): Provides excellent CMRR, which is crucial for minimizing noise in differential signal measurements.
3. Wide Gain Range: Gain can be set from 1 to 1000 through external resistors, providing flexibility in different applications.
4. Low Input Bias Current: Ensures minimal interference with the input signal, which is particularly important for high-impedance sources.
5. Single or Dual Supply Operation: Can operate with a single supply ranging from 2.3V to 36V or dual supplies up to ±18V, enhancing versatility.
6. High Bandwidth: Maintains a high bandwidth across various gain settings, suitable for dynamic signal processing.
7. Low Power Consumption: Features low quiescent current, making it suitable for battery-powered applications.
8. Small Package: Available in a compact SOIC package, facilitating space-saving designs.
These features make the AD822AR ideal for precision data acquisition systems, medical instrumentation, and industrial applications.
1. High Precision: Offers low offset voltage and low offset voltage drift, ensuring accurate signal amplification.
2. High Common-Mode Rejection Ratio (CMRR): Provides excellent CMRR, which is crucial for minimizing noise in differential signal measurements.
3. Wide Gain Range: Gain can be set from 1 to 1000 through external resistors, providing flexibility in different applications.
4. Low Input Bias Current: Ensures minimal interference with the input signal, which is particularly important for high-impedance sources.
5. Single or Dual Supply Operation: Can operate with a single supply ranging from 2.3V to 36V or dual supplies up to ±18V, enhancing versatility.
6. High Bandwidth: Maintains a high bandwidth across various gain settings, suitable for dynamic signal processing.
7. Low Power Consumption: Features low quiescent current, making it suitable for battery-powered applications.
8. Small Package: Available in a compact SOIC package, facilitating space-saving designs.
These features make the AD822AR ideal for precision data acquisition systems, medical instrumentation, and industrial applications.
Pinout
The AD822AR is an instrumentation amplifier manufactured by Analog Devices. It is typically housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pin configuration and functions are as follows:
1. Pin 1 (Offset Null 1): Used for offset voltage adjustment.
2. Pin 2 (Inverting Input - IN−): Connected to the inverting input of the internal op-amp.
3. Pin 3 (Non-Inverting Input - IN+): Connected to the non-inverting input of the internal op-amp.
4. Pin 4 (V−): Negative power supply voltage.
5. Pin 5 (Reference - REF): Used to set the output reference voltage level, typically connected to ground.
6. Pin 6 (Output - OUT): The amplifier output.
7. Pin 7 (Offset Null 2): Used along with Pin 1 for offset voltage adjustment.
8. Pin 8 (V+): Positive power supply voltage.
The AD822AR is designed for applications requiring precise, low-noise signal amplification, often used in sensor signal conditioning, medical instrumentation, and data acquisition systems due to its high accuracy and low offset voltage.
1. Pin 1 (Offset Null 1): Used for offset voltage adjustment.
2. Pin 2 (Inverting Input - IN−): Connected to the inverting input of the internal op-amp.
3. Pin 3 (Non-Inverting Input - IN+): Connected to the non-inverting input of the internal op-amp.
4. Pin 4 (V−): Negative power supply voltage.
5. Pin 5 (Reference - REF): Used to set the output reference voltage level, typically connected to ground.
6. Pin 6 (Output - OUT): The amplifier output.
7. Pin 7 (Offset Null 2): Used along with Pin 1 for offset voltage adjustment.
8. Pin 8 (V+): Positive power supply voltage.
The AD822AR is designed for applications requiring precise, low-noise signal amplification, often used in sensor signal conditioning, medical instrumentation, and data acquisition systems due to its high accuracy and low offset voltage.
Manufacturer
The AD822AR is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company provides a wide range of products, including amplifiers, data converters, sensors, and power management devices, that are used in various industries such as automotive, healthcare, industrial automation, communications, and consumer electronics. Analog Devices is known for its innovation and quality in developing components that enable high-performance applications in complex electronic systems.
Application
The AD822AR is a precision instrumentation amplifier commonly used in various applications, including:
1. Medical Instrumentation: Provides reliable signal conditioning for ECG, EEG, and other biosensor signals.
2. Industrial Automation: Enhances sensor signal accuracy in pressure, temperature, and flow measurement devices.
3. Data Acquisition Systems: Ensures high-quality signal amplification for precise data collection.
4. Weigh Scales: Improves the accuracy of load cell measurements.
5. Strain Gauge Amplification: Used in structural health monitoring and material testing.
6. Research and Development: Facilitates precise low-level signal amplification for experimental setups.
7. Audio Equipment: Enhances signal integrity in high-quality audio applications.
These applications benefit from its high CMRR, low offset voltage, and low noise performance.
1. Medical Instrumentation: Provides reliable signal conditioning for ECG, EEG, and other biosensor signals.
2. Industrial Automation: Enhances sensor signal accuracy in pressure, temperature, and flow measurement devices.
3. Data Acquisition Systems: Ensures high-quality signal amplification for precise data collection.
4. Weigh Scales: Improves the accuracy of load cell measurements.
5. Strain Gauge Amplification: Used in structural health monitoring and material testing.
6. Research and Development: Facilitates precise low-level signal amplification for experimental setups.
7. Audio Equipment: Enhances signal integrity in high-quality audio applications.
These applications benefit from its high CMRR, low offset voltage, and low noise performance.
Package
The AD822AR is an instrumentation amplifier from Analog Devices. It is housed in an SOIC-8 package, which is a Small Outline Integrated Circuit with 8 pins. This type of package is widely used for surface mount applications, offering a compact footprint suitable for automated assembly on printed circuit boards.
