AD8228BRZ-R7

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: Low noise, low power, rail-to-rail output, precision instrumentation amplifier
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: High-performance instrumentation amplifier for precision measurement applications
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 50µV maximum
• Gain Bandwidth Product: 10MHz
• Input Bias Current: 1nA maximum
• Common Mode Rejection Ratio: 114dB minimum
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The AD8228BRZ-R7 has the following pin configuration:

```

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

Functional Features

• Low input offset voltage and drift for accurate measurements
• Rail-to-rail output swing allows full utilization of the supply voltage range
• High common mode rejection ratio ensures rejection of common-mode noise
• Low power consumption for energy-efficient operation
• Wide operating temperature range for versatile applications

Advantages and Disadvantages

Advantages: - High precision and accuracy in measurement applications - Versatile operating voltage range - Low power consumption - Compact package size

Disadvantages: - Limited number of pins for additional functionalities - May require external components for specific applications

Working Principles

The AD8228BRZ-R7 is a precision instrumentation amplifier designed to amplify small differential signals accurately. It consists of three operational amplifiers configured in a differential amplifier topology. The input stage provides high input impedance and low input offset voltage, ensuring accurate signal acquisition. The gain stage amplifies the differential signal with high precision and low distortion. The output stage is capable of driving signals to both supply rails, enabling rail-to-rail output swing.

Detailed Application Field Plans

The AD8228BRZ-R7 is widely used in various applications that require precise measurement and amplification of small differential signals. Some of the common application fields include:

1. Medical Equipment: ECG (Electrocardiogram), EEG (Electroencephalogram), and other bio-potential measurements.
2. Industrial Automation: Sensor signal conditioning, strain gauge amplification, and process control.
3. Test and Measurement: Data acquisition systems, precision instrumentation, and calibration equipment.
4. Communication Systems: Signal conditioning for analog front-end circuits, filter amplification, and signal processing.

Detailed and Complete Alternative Models

• AD8228ARZ-R7: Similar specifications and features, but in a different package (8-pin SOIC)
• AD8228ARMZ-R7: Smaller package size (10-lead MSOP) with similar specifications
• AD8228WBRZ-R7: Wide temperature range version (-40°C to +150°C) with similar specifications

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