AD8421BRMZ-R7

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: High precision, low noise, low power consumption
• Package: 10-pin MSOP (Mini Small Outline Package)
• Essence: Instrumentation amplifier
• 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: 5MHz
• Input Bias Current: 3nA maximum
• Common Mode Rejection Ratio: 100dB minimum
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AD8421BRMZ-R7 has the following pin configuration:

1. IN1: Non-inverting input
2. IN2: Inverting input
3. REF: Reference voltage input
4. V-: Negative power supply
5. OUT: Output
6. RG: Gain setting resistor
7. V+: Positive power supply
8. NC: No connection
9. NC: No connection
10. GND: Ground

Functional Features

• High precision amplification of differential signals
• Low noise operation for accurate signal processing
• Wide supply voltage range for versatile applications
• Excellent common mode rejection ratio for rejecting common noise
• Low power consumption for energy-efficient designs

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise operation - Wide supply voltage range - Excellent common mode rejection ratio

Disadvantages: - Limited number of pins for additional functionalities - Relatively high cost compared to basic amplifiers

Working Principles

The AD8421BRMZ-R7 is an instrumentation amplifier designed to amplify small differential signals with high precision. It consists of three operational amplifiers and precision resistors that provide high gain and accurate signal processing. The amplifier operates by amplifying the voltage difference between the non-inverting input (IN1) and the inverting input (IN2), while rejecting common-mode noise.

Detailed Application Field Plans

The AD8421BRMZ-R7 is commonly used in various applications, including:

1. Medical Equipment: ECG (Electrocardiogram) amplification
2. Industrial Automation: Sensor signal conditioning
3. Test and Measurement: Precision data acquisition
4. Audio Systems: High-fidelity audio amplification
5. Communication Systems: Signal amplification for improved transmission quality

Detailed and Complete Alternative Models

1. AD8421BRZ: Similar to AD8421BRMZ-R7 but in a different package (8-pin SOIC)
2. AD8221ARZ: General-purpose instrumentation amplifier with lower cost
3. INA128P: Precision instrumentation amplifier with similar specifications
4. AD623AN: Low power instrumentation amplifier with wide supply voltage range

These alternative models offer similar functionality and can be considered based on specific requirements and constraints.

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