AD8217BRMZ-R7

Product Overview

• Category: Integrated Circuit (IC)
• Use: Current Sense Amplifier
• Characteristics:
  • High precision current measurement
  • Wide input voltage range
  • Low offset voltage and low noise
• Package: 8-pin MSOP (Mini Small Outline Package)
• Essence: Current sensing and amplification
• Packaging/Quantity: Tape and Reel, 3,000 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common Mode Voltage Range: -0.2V to +65V
• Gain Error: ±0.5%
• Offset Voltage: ±200µV
• Bandwidth: 1MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The AD8217BRMZ-R7 has the following pin configuration:

```

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| | --| V+ OUT |-- Pin 1: V+ (Positive Supply Voltage) --| IN+ GND |-- Pin 2: IN+ (Non-Inverting Input) --| IN- REF |-- Pin 3: IN- (Inverting Input) --| V- NC |-- Pin 4: V- (Negative Supply Voltage) --| NC NC |-- Pin 5: NC (No Connection) --| GND NC |-- Pin 6: GND (Ground) --| REF NC |-- Pin 7: REF (Reference Voltage) --| NC NC |-- Pin 8: NC (No Connection) |___________| ```

Functional Features

• High accuracy current sensing and amplification
• Wide input voltage range allows for versatile applications
• Low offset voltage and low noise ensure precise measurements
• Internal reference voltage for improved accuracy
• Fast response time and high bandwidth for real-time monitoring

Advantages

• High precision current measurement
• Wide input voltage range accommodates various applications
• Low offset voltage and low noise ensure accurate readings
• Compact package size for space-constrained designs
• Internal reference voltage eliminates the need for external components

Disadvantages

• Limited to current sensing applications only
• Requires an external power supply within the specified voltage range
• Sensitive to electromagnetic interference (EMI) due to high gain

Working Principles

The AD8217BRMZ-R7 is a current sense amplifier that accurately measures and amplifies current signals. It utilizes a differential amplifier configuration with a high common-mode rejection ratio (CMRR) to reject common-mode noise. The amplified output is proportional to the input current, allowing for precise current measurements.

Detailed Application Field Plans

The AD8217BRMZ-R7 is commonly used in various applications, including:

1. Power management systems: Monitor and control current flow in power supplies, battery chargers, and DC-DC converters.
2. Motor control: Measure motor currents in industrial automation, robotics, and electric vehicle applications.
3. Energy monitoring: Enable accurate current measurements in smart meters and energy monitoring systems.
4. Overcurrent protection: Detect and respond to overcurrent conditions in circuit breakers and electronic fuses.
5. Current sensing in automotive: Monitor current flow in automotive systems such as electric power steering and battery management.

Detailed and Complete Alternative Models

1. INA219: Current shunt monitor with I2C interface.
2. ACS712: Hall effect-based current sensor with analog output.
3. MAX4080: Precision high-side current-sense amplifier.
4. LT6106: High-side current sense amplifier with adjustable gain.
5. MCP6N11: Zero-drift instrumentation amplifier for current sensing.

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

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