INA211AIDCKR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA211AIDCKR is a high-side current shunt monitor IC designed for precise current measurement in various applications. It provides accurate current sensing and monitoring capabilities, making it suitable for use in power management systems, battery chargers, motor control, and other similar applications.

Characteristics: - High accuracy current sensing - Wide input voltage range - Low offset voltage and drift - High common-mode rejection ratio - Small package size for space-constrained designs

Package: The INA211AIDCKR is available in a small SOT-23-6 package, which offers compactness and ease of integration into different circuit designs.

Essence: The essence of the INA211AIDCKR lies in its ability to accurately measure current on the high side of a circuit, providing valuable information for system monitoring and control.

Packaging/Quantity: The INA211AIDCKR is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 26V
• Input Common-Mode Voltage Range: -0.3V to V+ + 0.3V
• Quiescent Current: 60µA (typical)
• Gain Error: ±0.5% (maximum)
• Bandwidth: 200kHz (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA211AIDCKR has six pins arranged as follows:

```

---

| | | INA | |___________|

Pin Configuration:

  1  2  3
 __|__|__
|        |
|        |
|________|

Pin 1: V+ Pin 2: IN+ Pin 3: IN- Pin 4: REF Pin 5: OUT Pin 6: GND ```

Functional Features

• High-side current sensing: The INA211AIDCKR allows accurate measurement of current on the high side of a circuit, eliminating the need for a low-side shunt resistor.
• Wide input voltage range: It can operate with supply voltages ranging from 2.7V to 26V, making it suitable for various applications.
• Low offset voltage and drift: The IC exhibits low offset voltage and drift, ensuring precise current measurements over time.
• High common-mode rejection ratio: It provides excellent rejection of common-mode voltage, minimizing errors caused by external noise or interference.

Advantages and Disadvantages

Advantages: - Accurate and precise current sensing - Wide operating voltage range - Compact package size - Low offset voltage and drift - High common-mode rejection ratio

Disadvantages: - Limited bandwidth compared to some other current sensing solutions - Requires careful consideration of input voltage range to avoid damage

Working Principles

The INA211AIDCKR utilizes a precision amplifier and a high-side current-sensing resistor to measure the voltage drop across the shunt resistor in a circuit. By amplifying this voltage drop, the IC provides an output voltage proportional to the current flowing through the shunt resistor. This output voltage can be further processed or monitored to obtain accurate current measurements.

Detailed Application Field Plans

The INA211AIDCKR finds application in various fields, including:

1. Power management systems: It enables precise current monitoring in power supplies, helping optimize efficiency and protect against overload conditions.
2. Battery chargers: The IC facilitates accurate current measurement during charging, ensuring proper charging rates and preventing overcharging.
3. Motor control: It allows for precise current sensing in motor control circuits, enabling efficient operation and protection against excessive currents.
4. Industrial automation: The INA211AIDCKR can be used in industrial automation systems to monitor current levels in different stages of the process, ensuring safe and reliable operation.

Detailed and Complete Alternative Models

1. INA210AIDCKR: Similar to the INA211AIDCKR, but with a lower bandwidth of 100kHz.
2. INA212AIDCKR: Offers higher bandwidth of 500kHz, suitable for applications requiring faster response times.
3. INA213AIDCKR: Provides a wider supply voltage range of 2.7V to 36V, allowing for use in higher voltage applications.

These alternative models offer similar functionality to the INA211AIDCKR but may have different specifications or features that cater to specific application requirements.

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