Overview
The AD8213YRMZ from Analog Devices Inc. is a dual-channel, precision current sense amplifier designed for high accuracy and reliability in various industrial and automotive applications. This component is particularly useful for unidirectional current measurements across a shunt resistor, making it suitable for tasks such as motor control, solenoid control, and battery management. The AD8213YRMZ features a set gain of 20 V/V with a maximum ±0.5% gain error over the entire temperature range, ensuring high precision in current sensing. It operates on a single 5V supply and can handle high common-mode voltages up to 65V, providing a ground-referenced, buffered output that can interface directly with analog-to-digital converters (ADCs).
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Gain | 20 V/V | Fixed gain |
| Gain Error | ±0.5% (max) over temperature range | |
| Common-Mode Range | -2 V to +65 V | Independent of 5V supply |
| Input Differential Voltage Range | 0 mV to 250 mV | |
| Operating Temperature Range | -40°C to +125°C (Y grade), -40°C to +150°C (H grade) | |
| Package | 10-lead MSOP | |
| Supply Voltage | 5 V | |
| Output Load Resistor | 25 kΩ (typical) |
Key Features
- High Accuracy Current Sense: The AD8213YRMZ offers high precision with a maximum ±0.5% gain error over the entire temperature range.
- Single Supply Operation: Operates on a single 5V supply, simplifying power management.
- Wide Common-Mode Range: Handles common-mode voltages from -2 V to +65 V, independent of the 5V supply.
- Integrated Low-Pass Filtering: Allows for external capacitor connection to filter the input signal before amplification.
- High Common-Mode Rejection Ratio (CMRR): Typical CMRR higher than 90 dB, ensuring minimal noise interference.
Applications
- Motor Control: Suitable for monitoring current in motor control systems.
- Solenoid Control: Used in solenoid control applications where precise current measurement is crucial.
- Battery Management: Ideal for battery management systems requiring accurate current sensing.
- Automotive Applications: Available in automotive grades to support the quality and reliability requirements of automotive systems.
- LED Lighting and Dimming Controls: Can be used in LED lighting and dimming control systems.
- IoT Devices: Suitable for various IoT applications requiring precise current measurement.
Q & A
- What is the gain of the AD8213YRMZ?
The AD8213YRMZ has a fixed gain of 20 V/V.
- What is the maximum gain error of the AD8213YRMZ?
The maximum gain error is ±0.5% over the entire temperature range.
- What is the common-mode voltage range of the AD8213YRMZ?
The common-mode voltage range is from -2 V to +65 V.
- What is the operating temperature range of the AD8213YRMZ?
The operating temperature range is -40°C to +125°C for the Y grade and -40°C to +150°C for the H grade.
- What type of package does the AD8213YRMZ come in?
The AD8213YRMZ is offered in a 10-lead MSOP package.
- Can the AD8213YRMZ be used for bidirectional current sensing?
Yes, the AD8213YRMZ can be configured for bidirectional current sensing, although a single-channel device like the AD8210 might be more optimal for such applications.
- What is the typical output load resistor for the AD8213YRMZ?
The typical output load resistor is 25 kΩ.
- How does the AD8213YRMZ handle common-mode rejection?
The AD8213YRMZ has a typical CMRR higher than 90 dB, ensuring high common-mode rejection.
- Can the AD8213YRMZ be used in automotive applications?
Yes, the AD8213YRMZ is available in automotive grades to support the quality and reliability requirements of automotive systems.
- What is the supply voltage for the AD8213YRMZ?
The supply voltage is 5 V.
