規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| AmplifierType | Instrumentation |
| NumberofCircuits | 1 |
| SlewRate | 35V/µs |
| -3dbBandwidth | 10 MHz |
| Current-InputBias | 1 nA |
| Voltage-InputOffset | 60 µV |
| Current-Supply | 2mA |
| Current-Output/Channel | 65 mA |
| Voltage-SupplySpan(Min) | 5 V |
| Voltage-SupplySpan(Max) | 36 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The AD8421ARZ is a high-performance, low-noise instrumentation amplifier produced by Analog Devices. It is designed for precision applications, offering ultralow noise, high accuracy, and a wide bandwidth. The amplifier features a gain range from 1 to 10,000, adjustable via a single resistor, making it versatile for various signal conditioning tasks. The AD8421ARZ is known for its low input bias current, low offset voltage, and high common-mode rejection ratio (CMRR), ensuring accurate and stable performance even in challenging environments.
This instrumentation amplifier operates on a wide supply voltage range (±2.3 V to ±18 V), making it suitable for both single and dual supply configurations. It is housed in a compact SOIC-8 package (ARZ suffix), offering ease of integration into circuit designs. The device is ideal for applications in medical instrumentation, data acquisition systems, and industrial process controls, where precision and reliability are paramount. The AD8421ARZ's robust performance and flexibility make it a popular choice for engineers working on sensitive and demanding measurement tasks.
This instrumentation amplifier operates on a wide supply voltage range (±2.3 V to ±18 V), making it suitable for both single and dual supply configurations. It is housed in a compact SOIC-8 package (ARZ suffix), offering ease of integration into circuit designs. The device is ideal for applications in medical instrumentation, data acquisition systems, and industrial process controls, where precision and reliability are paramount. The AD8421ARZ's robust performance and flexibility make it a popular choice for engineers working on sensitive and demanding measurement tasks.
Equivalent
The AD8421ARZ is a precision instrumentation amplifier by Analog Devices. Equivalent products include:
1. INA128 by Texas Instruments: A high-precision, low-noise instrumentation amplifier.
2. MAX4208 by Maxim Integrated: A low-distortion, high-precision instrumentation amplifier.
3. LT1167 by Analog Devices (formerly Linear Technology): A low-power, precision instrumentation amplifier.
These alternatives offer similar functionalities but may differ in specifications, so always verify compatibility with your application's requirements.
1. INA128 by Texas Instruments: A high-precision, low-noise instrumentation amplifier.
2. MAX4208 by Maxim Integrated: A low-distortion, high-precision instrumentation amplifier.
3. LT1167 by Analog Devices (formerly Linear Technology): A low-power, precision instrumentation amplifier.
These alternatives offer similar functionalities but may differ in specifications, so always verify compatibility with your application's requirements.
Features
The AD8421ARZ is a high-performance instrumentation amplifier known for its precision and low noise characteristics. Key features include:
1. High CMRR: Offers an exceptional common-mode rejection ratio, enhancing measurement accuracy in noisy environments.
2. Low Noise: Boasts low input noise, making it suitable for precision signal conditioning applications.
3. Wide Bandwidth: Supports a wide bandwidth, allowing for high-speed data acquisition.
4. Gain Range: Provides adjustable gain settings using a single external resistor.
5. Low Offset Voltage: Features a low offset voltage that minimizes measurement errors.
6. Rail-to-Rail Output: Capable of rail-to-rail output, maximizing the dynamic range.
7. Low Power Consumption: Designed for low power consumption, which is beneficial for battery-powered applications.
8. Temperature Range: Operates over a wide temperature range, making it suitable for various industrial applications.
9. Package Type: Available in space-saving surface-mount packages, such as the SOIC package.
These features make the AD8421ARZ ideal for applications requiring precise, low-noise amplification of small differential signals, such as medical instrumentation, data acquisition systems, and sensor interfacing.
1. High CMRR: Offers an exceptional common-mode rejection ratio, enhancing measurement accuracy in noisy environments.
2. Low Noise: Boasts low input noise, making it suitable for precision signal conditioning applications.
3. Wide Bandwidth: Supports a wide bandwidth, allowing for high-speed data acquisition.
4. Gain Range: Provides adjustable gain settings using a single external resistor.
5. Low Offset Voltage: Features a low offset voltage that minimizes measurement errors.
6. Rail-to-Rail Output: Capable of rail-to-rail output, maximizing the dynamic range.
7. Low Power Consumption: Designed for low power consumption, which is beneficial for battery-powered applications.
8. Temperature Range: Operates over a wide temperature range, making it suitable for various industrial applications.
9. Package Type: Available in space-saving surface-mount packages, such as the SOIC package.
These features make the AD8421ARZ ideal for applications requiring precise, low-noise amplification of small differential signals, such as medical instrumentation, data acquisition systems, and sensor interfacing.
Pinout
The AD8421ARZ is a high-performance instrumentation amplifier manufactured by Analog Devices. It comes in an 8-lead SOIC (Small Outline Integrated Circuit) package. The key functions of the AD8421 include providing precise gain, high accuracy, low noise, and wide bandwidth, making it suitable for various precision signal processing applications.
The pin configuration for the AD8421ARZ is as follows:
1. +IN: Non-inverting input.
2. -IN: Inverting input.
3. REF: Reference voltage input. This pin is used to set the output reference level.
4. -VS: Negative power supply.
5. RG: Gain setting resistor connection. Connect an external resistor between RG pins to set the desired gain.
6. RG: Another gain setting resistor connection.
7. +VS: Positive power supply.
8. OUT: Output of the amplifier.
The AD8421 is known for its excellent performance in terms of precision and low distortion, making it a popular choice for applications requiring high accuracy and reliability.
The pin configuration for the AD8421ARZ is as follows:
1. +IN: Non-inverting input.
2. -IN: Inverting input.
3. REF: Reference voltage input. This pin is used to set the output reference level.
4. -VS: Negative power supply.
5. RG: Gain setting resistor connection. Connect an external resistor between RG pins to set the desired gain.
6. RG: Another gain setting resistor connection.
7. +VS: Positive power supply.
8. OUT: Output of the amplifier.
The AD8421 is known for its excellent performance in terms of precision and low distortion, making it a popular choice for applications requiring high accuracy and reliability.
Manufacturer
The AD8421ARZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in data conversion, signal processing, and power management technology. Founded in 1965, the company is known for its high-performance analog, mixed-signal, and digital signal processing integrated circuits. Analog Devices serves a wide range of industries, including industrial, automotive, communications, consumer electronics, healthcare, and more, providing essential components for a variety of electronic systems and applications.
Application
The AD8421ARZ is a precision instrumentation amplifier commonly used in a variety of applications requiring high accuracy and stability. Typical application areas include medical instrumentation, such as ECG and EEG machines, due to its low noise and high CMRR. It is also used in industrial process controls for sensor signal amplification, such as pressure, temperature, or flow sensors. Additionally, the amplifier is suitable for data acquisition systems, where precise signal conditioning is needed, as well as in audio applications that demand high fidelity. Its robust performance in harsh environments also makes it ideal for automotive and aerospace applications.
Package
The AD8421ARZ is available in an 8-lead SOIC (Small Outline Integrated Circuit) package.
