Overview
The AD8205WYRZ-RL, 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 useful in applications where high common-mode rejection is required, such as in industrial, automotive, and medical instrumentation. The AD8205 operates from a single supply voltage ranging from 4.5V to 5.5V and can handle common-mode voltages up to 65V. It features a gain of 50 V/V and is available in an 8-lead SOIC package, making it suitable for a variety of precision measurement and signal conditioning tasks.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 4.5 | - | 5.5 | V |
| Operating Temperature Range | -40 | - | 125 | °C |
| Gain | 50 | 50 | 50 | V/V |
| Common Mode Input Range | -2 | - | 65 | V |
| Differential Input Range | -50 | - | 50 | mV |
| Common Mode Rejection Ratio (CMRR) | 78 | 86 | - | dB |
| Offset Voltage (RTI) | - | ±2 | ±4.5 | mV |
| Offset Drift | - | 15 | - | µV/°C |
| Input Impedance (Differential) | - | 400 | - | kΩ |
| Input Impedance (Common Mode) | - | 200 | - | kΩ |
| Bandwidth (-3 dB) | - | 50 | - | kHz |
Key Features
- Single-Supply Operation: The AD8205 operates from a single supply voltage, making it versatile for various applications.
- High Common Mode Rejection Ratio (CMRR): Offers better than 78 dB CMRR from dc to 20 kHz, ensuring high accuracy in the presence of large common-mode voltages.
- Adjustable Output Offset: The output offset can be adjusted from 0.05 V to 4.8 V, supporting both unipolar and bipolar operation.
- Wide Operating Temperature Range: Operates over a temperature range of -40°C to +125°C, suitable for harsh environments.
- Automotive Qualified: Available in automotive-grade models (e.g., AD8205WYRZ and AD8205WHRZ) with controlled manufacturing to support automotive reliability requirements.
- Compact Packaging: Available in an 8-lead SOIC package, which is RoHS compliant.
Applications
- Industrial Instrumentation: Suitable for precision measurement and signal conditioning in industrial settings.
- Automotive Systems: Used in automotive applications requiring high reliability and performance.
- Medical Instrumentation: Ideal for medical devices that need accurate signal amplification in the presence of noise.
- Current Sensing: Can be used in current sensing applications where differential voltage needs to be amplified.
- General Signal Conditioning: Useful in any application requiring the amplification of small differential signals in noisy environments.
Q & A
- What is the primary function of the AD8205WYRZ-RL?
The AD8205WYRZ-RL is a single-supply difference amplifier designed to amplify small differential voltages in the presence of large common-mode voltages.
- What is the operating temperature range of the AD8205WYRZ-RL?
The operating temperature range is -40°C to +125°C.
- What is the common-mode rejection ratio (CMRR) of the AD8205WYRZ-RL?
The CMRR is better than 78 dB from dc to 20 kHz.
- Can the output offset of the AD8205WYRZ-RL be adjusted?
Yes, the output offset can be adjusted from 0.05 V to 4.8 V.
- Is the AD8205WYRZ-RL suitable for automotive applications?
Yes, it is available in automotive-grade models with controlled manufacturing to support automotive reliability requirements.
- What is the package type of the AD8205WYRZ-RL?
The AD8205WYRZ-RL is available in an 8-lead SOIC package.
- What is the typical gain of the AD8205WYRZ-RL?
The typical gain is 50 V/V.
- What is the differential input range of the AD8205WYRZ-RL?
The differential input range is ±50 mV.
- Is the AD8205WYRZ-RL RoHS compliant?
Yes, it is RoHS compliant.
- What is the bandwidth (-3 dB) of the AD8205WYRZ-RL?
The bandwidth (-3 dB) is typically 50 kHz.
