AD8067ART-R2
AI

## AD8067ART-R2: High-Speed FastFET™ Operational Amplifier
The **AD8067ART-R2** is a high-performance, voltage-feedback operational amplifier developed by Analog Devices. It belongs to the **FastFET™** family, which combines the high input impedance of a FET-input stage with the speed and precision of advanced bipolar technology.
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### 1. Key Technical Specifications
Below are the primary electrical characteristics of the AD8067ART-R2:
| Parameter | Specification |
| :--- | :--- |
| **Input Type** | FET (Field-Effect Transistor) |
| **Bandwidth (-3dB)** | 54 MHz |
| **Slew Rate** | 640 V/µs |
| **Supply Voltage Range** | 5V to 24V (±2.5V to ±12V) |
| **Input Bias Current** | 1 pA (typical) |
| **Quiescent Current** | 6.6 mA |
| **Package / Case** | SOT-23-5 |
| **Output Type** | Rail-to-Rail |
---
### 2. Part Number Breakdown
Understanding the nomenclature helps identify the specific variant:
* **AD8067**: The base model number for this specific high-speed FET op-amp.
* **ART**: Refers to the **SOT-23-5** package type (surface mount).
* **R2**: Refers to the packaging format, typically a **7-inch reel** containing 250 units (used for smaller production runs or prototyping).
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### 3. Core Features and Advantages
1. **High Speed & Slew Rate:** With a 640 V/µs slew rate, it can handle rapid signal transitions with minimal distortion, making it ideal for pulse processing.
2. **Ultra-Low Input Bias Current:** Because of the FET input stage (approx. 1pA), it is excellent for applications where source impedance is very high, as it won't load the signal source.
3. **Low Noise:** It offers low voltage noise (6.6 nV/√Hz) and extremely low current noise (0.6 fA/√Hz), providing a high signal-to-noise ratio.
4. **Wide Supply Range:** It can operate on single or dual supplies up to 24V, offering flexibility for industrial and automotive designs.
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### 4. Typical Applications
The AD8067 is commonly utilized in circuits requiring high precision and high speed:
* **Photodiode Preamps:** Converting low-level currents from light sensors into measurable voltages.
* **Precision Filters:** High-order active filters where frequency response must remain flat.
* **Data Acquisition:** Driving high-speed Analog-to-Digital Converters (ADCs).
* **Instrumentation:** Medical and scientific equipment requiring high input impedance.
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### 5. Pin Configuration (SOT-23-5)
```text
_______
OUT |1 5| V+
V- |2 |
+IN |3 4| -IN
-------
```
- ⤷
What are the main differences between the AD8067 and the AD8065?
- ⤷ How does the FET input improve performance in photodiode circuits?
- ⤷ What is the recommended layout practice to minimize parasitic capacitance for this chip?