## Overview of AD8515AKS-R2 The **AD8515AKS-R2** is a high-performance, low-power operational amplifier manufactured by Analog Devices. It is specifically designed for applications requiring high precision in a compact footprint, particularly in battery-operated devices. ### Key Specifications Below are the primary technical characteristics of the AD8515AKS-R2: | Parameter | Specification | | :--- | :--- | | **Op-Amp Type** | CMOS, Rail-to-Rail Input/Output | | **Number of Channels** | 1 (Single) | | **Supply Voltage (Single)** | 1.8V to 5.0V | | **Gain Bandwidth Product** | 5 MHz | | **Slew Rate** | 2.7 V/µs | | **Offset Voltage** | 1 mV (typical) | | **Supply Current** | 350 µA per channel | | **Package / Case** | SC-70-5 (5-pin) | --- ### Core Features 1. **Rail-to-Rail Capability:** Both the input and output can swing across the entire supply voltage range. This is critical for low-voltage systems (like 1.8V) where maximizing the signal dynamic range is necessary. 2. **Low Power Consumption:** With a typical current draw of only 350 µA, it is ideal for portable electronics where battery life is a priority. 3. **Wide Bandwidth:** Despite its low power consumption, it offers a 5 MHz bandwidth, making it suitable for audio and sensor signal conditioning. 4. **Small Form Factor:** The SC-70 package is significantly smaller than standard SOT-23 packages, saving valuable PCB real estate. ### Typical Applications * **Portable Communication:** Mobile phones and wireless handsets. * **Sensor Interface:** Signal conditioning for pressure, temperature, and light sensors. * **Battery Powered Devices:** Medical instrumentation and handheld meters. * **Active Filters:** Low-pass or high-pass filtering in space-constrained designs. --- ### Pin Configuration (SC-70-5) | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | OUT | Amplifier Output | | 2 | V- | Negative Supply or Ground | | 3 | +IN | Non-inverting Input | | 4 | -IN | Inverting Input | | 5 | V+ | Positive Supply | --- ### Comparison with Similar Models | Model | Supply Voltage | Bandwidth | Current Draw | | :--- | :--- | :--- | :--- | | **AD8515** | 1.8V - 5V | 5 MHz | 350 µA | | **AD8541** | 2.7V - 5V | 1 MHz | 45 µA | | **AD8601** | 2.7V - 5V | 8 MHz | 700 µA |