The **AD8038AKS-R2** is a high-speed, voltage feedback amplifier manufactured by Analog Devices. It is designed to provide high performance with low power consumption, making it ideal for battery-operated or portable high-frequency equipment. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Type** | High-Speed Voltage Feedback Op-Amp | | **Bandwidth (-3 dB)** | 350 MHz | | **Slew Rate** | 425 V/µs | | **Supply Voltage Range** | 3 V to 12 V (Single or Dual) | | **Supply Current** | 1.0 mA (Typical) | | **Package Type** | SC70-5 (AKS designation) | | **Input Bias Current** | 400 nA | --- ### 2. Physical Characteristics and Packaging The suffix **"AKS-R2"** provides specific information regarding its form factor and delivery: * **AKS**: Refers to the **SC70** (5-lead) package. This is an ultra-small surface-mount package, significantly smaller than SOT-23, used in space-constrained designs. * **R2**: Indicates the shipping format, typically a **7-inch reel** containing a specific quantity (often 250 units) for automated assembly. --- ### 3. Core Features * **Low Power:** Consumes only 1.0 mA of quiescent current, which is exceptionally low for a 350 MHz amplifier. * **High Speed:** Rapid response time with a 425 V/µs slew rate, minimizing distortion in fast pulses. * **Rail-to-Rail Output:** The output swing can reach within millivolts of the supply rails, maximizing dynamic range on low-voltage supplies. * **Low Distortion:** Maintains high signal integrity, which is critical for driving ADCs (Analog-to-Digital Converters). --- ### 4. Typical Applications 1. **Battery Powered Instrumentation:** Due to the low current draw. 2. **ADC Drivers:** Buffering signals for high-speed converters. 3. **Video Electronics:** Used in professional cameras or video switchers because of its bandwidth and gain flatness. 4. **Active Filters:** Designing high-frequency filters with minimal component footprint. --- ### 5. Simple Application Circuit Example In a standard non-inverting configuration, the gain ($A_v$) is determined by external resistors. ```markdown V_in ----(+) |\ | \ (-)----| >---- V_out | | / | |/ | R_f --|-- R_g -- GND ``` *Note: $A_v = 1 + (R_f / R_g)$. For high-speed stability, $R_f$ is typically chosen based on the datasheet's recommended values (usually around 1 kΩ).*