## AD8034ART-R2: Overview and Technical Specifications The **AD8034ART-R2** is a high-speed, dual-channel operational amplifier (op-amp) manufactured by Analog Devices. It belongs to the **FastFET™** family, which combines high speed with a JFET input stage to provide low input bias current and high input impedance. --- ### 1. Key Technical Features | Feature | Specification | | :--- | :--- | | **Number of Channels** | 2 (Dual Op-Amp) | | **Bandwidth (-3 dB)** | 80 MHz | | **Slew Rate** | 80 V/µs | | **Input Type** | JFET (Low Bias Current) | | **Input Bias Current** | 1 pA (Typical) | | **Supply Voltage Range** | 5 V to 24 V (±2.5V to ±12V) | | **Package Type** | SOT-23-8 (ART designation) | | **Output Type** | Rail-to-Rail | --- ### 2. Functional Description The AD8034 is designed for applications requiring high speed and high input impedance. Its primary internal components include: - **JFET Input Stage:** Unlike standard bipolar op-amps, the JFET inputs allow for extremely low leakage currents, making it ideal for photodiode preamps or high-impedance sensors. - **FastFET Technology:** This proprietary architecture allows the device to maintain high speed and wide bandwidth while drawing relatively low power (approx. 3.3 mA per amplifier). - **Rail-to-Rail Output:** This ensures that the output signal can swing very close to the positive and negative supply rails, maximizing the dynamic range. --- ### 3. Pinout Configuration (SOT-23-8) | Pin Number | Symbol | Description | | :--- | :--- | :--- | | 1 | OUT1 | Output of Amplifier 1 | | 2 | -IN1 | Inverting Input of Amplifier 1 | | 3 | +IN1 | Non-Inverting Input of Amplifier 1 | | 4 | V- | Negative Supply Voltage | | 5 | +IN2 | Non-Inverting Input of Amplifier 2 | | 6 | -IN2 | Inverting Input of Amplifier 2 | | 7 | OUT2 | Output of Amplifier 2 | | 8 | V+ | Positive Supply Voltage | --- ### 4. Typical Applications 1. **Photodiode Preamps:** Because of the picoamp-level input bias current, it is excellent for converting light-to-voltage without significant error. 2. **Instrumentation:** High-speed data acquisition systems where signal integrity is critical. 3. **Active Filters:** High-order filters requiring wide bandwidth and low noise. 4. **Level Shifting:** Transitioning signals between different voltage domains in mixed-signal circuits. --- ### 5. Ordering Information Meaning (ART-R2) - **ART:** Refers to the **SOT-23** 8-lead plastic surface-mount package. - **R2:** Refers to the packaging format, specifically a **7-inch reel** containing 2,000 units (Standard Tape and Reel).