仕様
| 属性 | 値 |
| Package | Tube |
| Series | iCMOS® |
| ProductStatus | Active |
| AmplifierType | Instrumentation |
| NumberofCircuits | 1 |
| SlewRate | 30V/µs |
| -3dbBandwidth | 10 MHz |
| Current-InputBias | 5 nA |
| Voltage-InputOffset | 70 µV |
| Current-Supply | 4.1mA |
| Current-Output/Channel | 37 mA |
| Voltage-SupplySpan(Min) | 10 V |
| Voltage-SupplySpan(Max) | 30 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) |
概要
Description
The AD8251ARMZ is a precision instrumentation amplifier produced by Analog Devices. It is known for its high accuracy and performance in signal conditioning applications. The device features programmable gain settings of 1, 10, 100, and 1000, which are easily selectable via digital inputs, making it versatile for various applications. The AD8251ARMZ offers a low offset voltage and drift, providing enhanced precision and reliability in measurements. It operates over a wide power supply range from ±5 V to ±15 V, making it suitable for various power supply environments. The amplifier is designed with a high common-mode rejection ratio (CMRR), which ensures the effective rejection of noise and interference from the input signals. Additionally, the AD8251ARMZ is housed in a compact MSOP package, making it space-efficient for circuit designs. Typical applications include data acquisition systems, medical instrumentation, and industrial process controls, where high precision and stability are paramount. Its combination of programmable gain, low noise, and high accuracy makes it a valuable component in precision electronic systems.
Equivalent
The AD8251ARMZ is an instrumentation amplifier from Analog Devices. Equivalent products include the INA826 from Texas Instruments, the MAX4466 from Maxim Integrated, and the LTC2053 from Analog Devices. These alternatives offer similar functionality but may have different specifications, so it's important to verify compatibility with your application requirements. Always consider factors like bandwidth, input noise, and power supply voltage when selecting an equivalent part.
Features
The AD8251ARMZ is a digitally programmable gain instrumentation amplifier that offers precise gain settings and high performance in varied applications. Key features include:
1. Programmable Gain: Offers gain settings of 1, 2, 4, and 8, selectable via digital inputs, which provide flexibility for different signal ranges.
2. High Accuracy: It boasts low offset voltage and low gain error, ensuring high precision in measurements.
3. Bandwidth: Provides a wide bandwidth, allowing for fast signal processing and accurate data capture.
4. Low Power Consumption: Designed for efficient operation, making it suitable for battery-powered devices.
5. Supply Voltage Range: Operates on a wide supply voltage range, enhancing versatility across different systems.
6. High Common-Mode Rejection Ratio (CMRR): Offers excellent CMRR, which is crucial for minimizing interference from common-mode signals.
7. Small Package: Available in a compact MSOP package, which is advantageous for space-constrained applications.
8. Temperature Range: Operates reliably over a wide temperature range, suitable for industrial and outdoor environments.
Overall, the AD8251ARMZ is ideal for applications requiring precise amplification, such as data acquisition systems and sensor interfacing.
1. Programmable Gain: Offers gain settings of 1, 2, 4, and 8, selectable via digital inputs, which provide flexibility for different signal ranges.
2. High Accuracy: It boasts low offset voltage and low gain error, ensuring high precision in measurements.
3. Bandwidth: Provides a wide bandwidth, allowing for fast signal processing and accurate data capture.
4. Low Power Consumption: Designed for efficient operation, making it suitable for battery-powered devices.
5. Supply Voltage Range: Operates on a wide supply voltage range, enhancing versatility across different systems.
6. High Common-Mode Rejection Ratio (CMRR): Offers excellent CMRR, which is crucial for minimizing interference from common-mode signals.
7. Small Package: Available in a compact MSOP package, which is advantageous for space-constrained applications.
8. Temperature Range: Operates reliably over a wide temperature range, suitable for industrial and outdoor environments.
Overall, the AD8251ARMZ is ideal for applications requiring precise amplification, such as data acquisition systems and sensor interfacing.
Pinout
The AD8251ARMZ is an instrumentation amplifier from Analog Devices. It is available in a small MSOP-8 package. Thus, it has 8 pins in total. The pin functions can be summarized as follows:
1. Pin 1 (REF): Reference input. Used to set the output reference level.
2. Pin 2 (V-): Negative power supply.
3. Pin 3 (RG): Gain resistor pin. Connects to an external resistor to set the gain.
4. Pin 4 (IN-): Inverting input.
5. Pin 5 (IN+): Non-inverting input.
6. Pin 6 (VS+): Positive power supply.
7. Pin 7 (OUT): Output. Provides the amplified signal.
8. Pin 8 (NC/SHDN): No Connection (NC) or Shutdown (SHDN) dependent on specific usage.
The AD8251 allows for precise and adjustable gain through an external resistor, making it versatile for various applications that require precision amplification, such as sensor signal conditioning and data acquisition systems.
1. Pin 1 (REF): Reference input. Used to set the output reference level.
2. Pin 2 (V-): Negative power supply.
3. Pin 3 (RG): Gain resistor pin. Connects to an external resistor to set the gain.
4. Pin 4 (IN-): Inverting input.
5. Pin 5 (IN+): Non-inverting input.
6. Pin 6 (VS+): Positive power supply.
7. Pin 7 (OUT): Output. Provides the amplified signal.
8. Pin 8 (NC/SHDN): No Connection (NC) or Shutdown (SHDN) dependent on specific usage.
The AD8251 allows for precise and adjustable gain through an external resistor, making it versatile for various applications that require precision amplification, such as sensor signal conditioning and data acquisition systems.
Manufacturer
The AD8251ARMZ 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 produces a wide range of products used in various applications, including industrial, automotive, consumer electronics, communications, and healthcare. Analog Devices is known for its focus on innovation and high-performance solutions in the semiconductor industry.
Application
The AD8251ARMZ is an instrumentation amplifier designed for precision signal processing applications. Its key application areas include:
1. Medical Instrumentation: Used in ECG and EEG systems for accurate signal acquisition.
2. Industrial Process Control: Employed for sensor signal conditioning in automation systems.
3. Data Acquisition Systems: Enhances signal quality in high-resolution data converters.
4. Seismic and Geological Equipment: Facilitates precise measurement and monitoring.
5. Weigh Scales and Strain Gauges: Improves measurement accuracy in load cells.
6. Test and Measurement Equipment: Used in oscilloscopes and spectrum analyzers for precise signal amplification.
The AD8251ARMZ excels in environments where low power consumption and high performance are critical.
1. Medical Instrumentation: Used in ECG and EEG systems for accurate signal acquisition.
2. Industrial Process Control: Employed for sensor signal conditioning in automation systems.
3. Data Acquisition Systems: Enhances signal quality in high-resolution data converters.
4. Seismic and Geological Equipment: Facilitates precise measurement and monitoring.
5. Weigh Scales and Strain Gauges: Improves measurement accuracy in load cells.
6. Test and Measurement Equipment: Used in oscilloscopes and spectrum analyzers for precise signal amplification.
The AD8251ARMZ excels in environments where low power consumption and high performance are critical.
Package
The AD8251ARMZ is typically available in an MSOP (Mini Small Outline Package) with 10 pins. This package type is designed to be compact for efficient use in space-constrained applications.
