Overview
The AD8205YRZ, produced by Analog Devices Inc., is a single-supply difference amplifier designed to amplify small differential voltages in the presence of large common-mode voltages. This amplifier is particularly suited for systems with a maximum 42V supply and is available in an 8-lead SOIC package. It operates over a wide input common-mode voltage range from −2 V to +65 V and is typically powered by a single 5V supply. The AD8205YRZ is ideal for applications requiring precise voltage measurement and current sensing, especially in automotive and industrial environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Part Number | AD8205YRZ | |
| Package | SOIC-8 | |
| Number of Channels | 1 Channel | |
| GBP - Gain Bandwidth Product | 50 kHz | |
| SR - Slew Rate | 0.5 V/us | |
| CMRR - Common Mode Rejection Ratio | 78 dB (dc to 20 kHz) | |
| Input Impedance (Differential) | 400 kΩ | |
| Input Impedance (Common Mode) | 200 kΩ | |
| Input Voltage Range (Common Mode) | −2 V to +65 V | |
| Input Voltage Range (Differential) | ±100 mV | |
| Offset Voltage (RTI) at 25°C | ±2 mV | |
| Offset Drift | 15 µV/°C | |
| Operating Temperature Range | −40°C to +125°C (Y and W Grade) | |
| Supply Voltage | Up to 12.5 V Continuous |
Key Features
- Dual-Mode Voltage Measurement: The AD8205YRZ can measure both differential and common-mode voltages accurately.
- Precise Current Sensing: Ideal for current shunt applications, it provides high accuracy in current sensing.
- Excellent AC and DC Performance: Offers high CMRR (Common Mode Rejection Ratio) and low offset drift, ensuring excellent performance in both AC and DC conditions.
- Compact 8-Lead SOIC Package: Suitable for space-constrained applications.
- Suitable for Automotive and Industrial Applications: Qualified for use in automotive and industrial environments due to its robust specifications and operating temperature range.
Applications
- High-Side Current Sensing: Used in motor controls, transmission controls, diesel injection controls, engine management, and suspension controls.
- Vehicle Dynamic Controls: Suitable for various vehicle dynamic control systems.
- DC-to-DC Converters: Can be used in DC-to-DC converter applications requiring precise voltage measurement.
- Industrial Automation: Applicable in industrial automation systems that require accurate voltage and current measurements.
Q & A
- What is the primary function of the AD8205YRZ?
The AD8205YRZ is a single-supply difference amplifier designed to amplify small differential voltages in the presence of large common-mode voltages.
- What is the maximum supply voltage for the AD8205YRZ?
The maximum supply voltage for the AD8205YRZ is 12.5 V continuous.
- What is the common-mode rejection ratio (CMRR) of the AD8205YRZ?
The CMRR of the AD8205YRZ is 78 dB from dc to 20 kHz.
- What is the operating temperature range for the AD8205YRZ?
The operating temperature range for the AD8205YRZ is −40°C to +125°C for Y and W grade models.
- What package type is the AD8205YRZ available in?
The AD8205YRZ is available in an 8-lead SOIC package.
- What are some typical applications of the AD8205YRZ?
The AD8205YRZ is typically used in high-side current sensing, vehicle dynamic controls, DC-to-DC converters, and industrial automation systems.
- What is the slew rate of the AD8205YRZ?
The slew rate of the AD8205YRZ is 0.5 V/us.
- What is the gain bandwidth product (GBP) of the AD8205YRZ?
The GBP of the AD8205YRZ is 50 kHz.
- How does the AD8205YRZ handle input voltage ranges?
The AD8205YRZ can handle an input common-mode voltage range from −2 V to +65 V and a differential input voltage range of ±100 mV.
- Is the AD8205YRZ suitable for automotive applications?
Yes, the AD8205YRZ is qualified for automotive applications due to its robust specifications and operating temperature range.
