Overview
The AD8418AWBRMZ-10, produced by Analog Devices Inc., is a high-voltage, high-resolution current shunt amplifier designed for precise current sensing in various applications. This component is part of the AD8418A series and is engineered to meet stringent automotive and industrial requirements. It features a wide operating temperature range, high common-mode rejection ratio, and bidirectional operation, making it suitable for high-side and low-side current sensing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Package | 10-lead MSOP | |
| Gain | 20 V/V | |
| Gain Error | ±0.15% over temperature range | |
| Input Bias Current | 130 μA | |
| Common Mode Voltage Range | -2 V to +70 V | |
| Common Mode Rejection Ratio (CMRR) | 90 dB (dc to 10 kHz) | |
| Supply Voltage Range | 2.7 V to 5.5 V | |
| Quiescent Current | 4.1 mA | |
| Operating Temperature Range | -40°C to +125°C | |
| Output Voltage Range | 0.032 VS - 0.032 V | |
| Bandwidth | 250 kHz | |
| AEC-Q100 Qualification | Yes |
Key Features
- High Common Mode Voltage Range: The AD8418AWBRMZ-10 can handle common mode voltages from -2 V to +70 V, making it suitable for high-voltage applications.
- High Resolution and Accuracy: It offers an initial gain of 20 V/V with a maximum ±0.15% gain error over the entire temperature range, ensuring high accuracy in current measurements.
- Bidirectional Operation: The amplifier can measure bidirectional currents across a shunt resistor, which is beneficial in various automotive and industrial applications.
- Wide Operating Temperature Range: It operates from -40°C to +125°C, meeting the requirements for both automotive and industrial environments.
- AEC-Q100 Qualified: This component is qualified for automotive applications, ensuring reliability and performance under stringent conditions.
- High CMRR and Low Noise: The component features a high common mode rejection ratio (CMRR) of 90 dB and low noise characteristics, enhancing the signal integrity.
Applications
- High-Side Current Sensing: Ideal for monitoring current in high-side configurations, such as in motor controls and power management systems.
- Low-Side Current Sensing: Suitable for low-side current sensing applications where precision and high resolution are required.
- Automotive Systems: AEC-Q100 qualification makes it suitable for various automotive applications, including motor controls and diagnostic protection.
- Industrial Systems: Used in industrial applications such as solenoid controls, power management, and diagnostic protection.
Q & A
- What is the primary function of the AD8418AWBRMZ-10?
The AD8418AWBRMZ-10 is a high-voltage, high-resolution current shunt amplifier designed for precise current sensing in various applications.
- What is the gain of the AD8418AWBRMZ-10?
The initial gain of the AD8418AWBRMZ-10 is 20 V/V.
- What is the common mode voltage range of the AD8418AWBRMZ-10?
The common mode voltage range is from -2 V to +70 V.
- What is the operating temperature range of the AD8418AWBRMZ-10?
The operating temperature range is from -40°C to +125°C.
- Is the AD8418AWBRMZ-10 AEC-Q100 qualified?
Yes, the AD8418AWBRMZ-10 is AEC-Q100 qualified for automotive applications.
- What is the bandwidth of the AD8418AWBRMZ-10?
The bandwidth is 250 kHz.
- Can the AD8418AWBRMZ-10 measure bidirectional currents?
Yes, the AD8418AWBRMZ-10 can measure bidirectional currents across a shunt resistor.
- What is the quiescent current of the AD8418AWBRMZ-10?
The quiescent current is 4.1 mA.
- What are the typical applications of the AD8418AWBRMZ-10?
Typical applications include high-side and low-side current sensing in automotive and industrial systems, such as motor controls, solenoid controls, and power management.
- How does the AD8418AWBRMZ-10 handle high common mode voltages?
The AD8418AWBRMZ-10 features a high common mode rejection ratio (CMRR) of 90 dB, which helps in rejecting high common mode voltages.
