ADUM3070ARQZ

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Isolation amplifier for industrial applications
• Characteristics:
  • Provides galvanic isolation between input and output signals
  • High common-mode transient immunity
  • Low power consumption
  • Wide operating temperature range
• Package: 16-Lead QSOP (Quarter Small Outline Package)
• Essence: Isolation amplifier with high performance and reliability
• Packaging/Quantity: Available in tape and reel packaging, 250 units per reel

Specifications

• Supply Voltage: 3.0 V to 5.5 V
• Input Offset Voltage: ±100 µV
• Gain Nonlinearity: ±0.05%
• Bandwidth: 200 kHz
• Common-Mode Rejection Ratio: 80 dB
• Isolation Voltage: 2.5 kVrms

Detailed Pin Configuration

The ADUM3070ARQZ has a total of 16 pins. The pin configuration is as follows:

1. VDD1: Positive supply voltage for channel 1
2. VDD2: Positive supply voltage for channel 2
3. GND1: Ground for channel 1
4. GND2: Ground for channel 2
5. IN1+: Non-inverting input for channel 1
6. IN1-: Inverting input for channel 1
7. NC: No connection
8. OUT1: Output for channel 1
9. VISO1: Isolated power supply for channel 1
10. VISO2: Isolated power supply for channel 2
11. OUT2: Output for channel 2
12. IN2-: Inverting input for channel 2
13. IN2+: Non-inverting input for channel 2
14. NC: No connection
15. GND2: Ground for channel 2
16. VDD2: Positive supply voltage for channel 2

Functional Features

• Provides high accuracy and precision in signal isolation
• Offers excellent noise rejection and common-mode rejection ratio
• Low power consumption makes it suitable for battery-powered applications
• Wide operating temperature range allows usage in harsh environments
• Compact package size enables space-saving designs

Advantages and Disadvantages

Advantages

• High performance and reliability
• Galvanic isolation ensures safety and protection of sensitive components
• Wide operating voltage range allows compatibility with various systems
• Excellent noise rejection enhances signal integrity

Disadvantages

• Limited bandwidth compared to some other isolation amplifiers
• Higher cost compared to non-isolated amplifiers

Working Principles

The ADUM3070ARQZ is based on the principle of magnetic coupling. It utilizes a transformer to provide galvanic isolation between the input and output signals. The input signal is converted into a magnetic field, which is then coupled to the output side of the transformer. This ensures that there is no direct electrical connection between the input and output, providing isolation and preventing any potential ground loops or voltage differences.

Detailed Application Field Plans

The ADUM3070ARQZ is commonly used in industrial applications where signal isolation is crucial. Some specific application fields include: - Industrial process control systems - Motor control and drives - Power monitoring and metering - Medical equipment - Isolated data acquisition systems

Detailed and Complete Alternative Models

• ADUM3070BRWZ: Same functionality as ADUM3070ARQZ, but available in a different package (16-Lead SOIC)
• ADUM3070CRWZ: Similar specifications to ADUM3070ARQZ, but with extended temperature range (-40°C to +105°C)
• ADUM3070DRWZ: Higher bandwidth version of ADUM3070ARQZ (400 kHz)

These alternative models provide flexibility in terms of package options, temperature range, and bandwidth requirements.

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