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AD8221BRZ
+NomenclatureIC INST AMP 1 CIRCUIT 8SOIC
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #AD8221BRZ
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Package SOIC-8
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En stock6400
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Part Status | Active |
| Amplifier Type | Instrumentation |
| Number of Circuits | 1 |
| Slew Rate | 2V/µs |
| -3 dB Bandwidth | 825 kHz |
| Current - Input Bias | 200 pA |
| Voltage - Input Offset | 25 µV |
| Supply Current | 900µA |
| Current - Output / Channel | 18 mA |
| Voltage - Supply Span(Min) | 4.6 V |
| Voltage - Supply Span(Max) | 36 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Présentation
Description
Key features of the AD8221BRZ include a gain range of 1 to 1000, set by a single external resistor, low input bias current, and a wide supply voltage range from ±2.3V to ±18V. It also boasts a low input noise of 8 nV/√Hz, making it suitable for use in low-noise environments. The AD8221BRZ is available in a small, 8-lead SOIC package, making it easy to integrate into compact designs.
Its robust performance and ease of use make it suitable for a variety of applications, including medical instrumentation, sensor signal conditioning, and industrial process controls.
Equivalent
1. INA128/INA129 by Texas Instruments.
2. MAX4198/MAX4199 by Maxim Integrated.
3. LT1167 by Analog Devices (formerly Linear Technology).
4. AD620 by Analog Devices.
These alternatives offer similar functions but may differ in specifications like bandwidth, noise, and supply voltage, so it’s important to compare specific parameters for compatibility with your application.
Features
Pinout
1. Pin 1 (Ref): Reference pin. Used to set the output reference voltage. Typically connected to ground for single-supply applications.
2. Pin 2 (V- or -Vs): Negative power supply pin. Connects to the negative supply voltage.
3. Pin 3 (RG): Gain resistor pin. The gain of the amplifier is set by connecting a resistor between pins 1 and 8.
4. Pin 4 (IN- or -IN1): Negative input pin. Connects to the inverting input signal.
5. Pin 5 (IN+ or +IN2): Positive input pin. Connects to the non-inverting input signal.
6. Pin 6 (RG): Gain resistor pin. Works with pin 3 to set the gain.
7. Pin 7 (V+ or +Vs): Positive power supply pin. Connects to the positive supply voltage.
8. Pin 8 (Out): Output pin. Provides the amplified output signal.
These pins allow the AD8221BRZ to function as a precision instrumentation amplifier suitable for a wide range of signal conditioning applications.
Manufacturer
Application
1. Medical Instrumentation: For ECG, EEG, and other biosignal amplifications due to its low noise characteristics.
2. Industrial Process Controls: Used in sensor signal conditioning and data acquisition systems.
3. Weigh Scales: For precise weight measurement in load cells.
4. Strain Gauge Applications: Ideal for precision measurement in structural testing.
5. Audio Applications: In high-fidelity audio equipment requiring minimal signal distortion.
6. Bridge Transducer Interface: Effective in measuring pressure, force, or temperature changes.
These applications benefit from its high accuracy and stability across varying environmental conditions.