## Overview of AD8568ART-R2 The **AD8568ART-R2** is a high-performance, quad operational amplifier (op-amp) manufactured by Analog Devices. It is specifically designed for applications requiring high speed, high output current drive, and low power consumption. --- ### Key Specifications | Feature | Specification | | :--- | :--- | | **Type** | Quad Operational Amplifier (LCD Buffer) | | **Operating Supply Voltage** | 4.5 V to 16 V | | **Output Current** | 80 mA (Peak) | | **Slew Rate** | 6 V/µs | | **Gain Bandwidth Product** | 5 MHz | | **Package Type** | SOT-23-14 (Small Outline Transistor) | | **Operating Temperature** | -40°C to +85°C | --- ### Technical Components & Architecture The AD8568 is engineered as a **Single-Supply Rail-to-Rail Output (RRO)** amplifier. Here are the core electronic characteristics: #### 1. Input Stage * **High Input Impedance:** Utilizes a bipolar/CMOS architecture to ensure minimal input bias current. * **Common-Mode Range:** The input voltage range typically includes the negative rail (ground), making it ideal for single-supply systems. #### 2. Output Stage (High Drive Capability) * The primary feature of this part is its ability to drive large capacitive loads. * It can deliver up to **35 mA of continuous current** and **80 mA of peak current**, which is essential for charging/discharging the capacitive pixels in LCD panels. #### 3. Power Management * **Low Quiescent Current:** Despite its high output drive, it consumes only about 700 µA per amplifier. * **Single Supply:** Optimized for 5V or 12V rails commonly found in consumer electronics. --- ### Common Applications Because of its specific power and drive profile, the AD8568 is frequently found in: * **LCD Reference Buffers:** Driving the VCOM and Gamma levels in thin-film transistor (TFT) displays. * **Automotive Infotainment:** Used in dashboard displays and camera monitors. * **Portable Instrumentation:** Signal conditioning in battery-powered devices. * **ASIC Input/Output Buffering:** Interfacing low-power signals with high-capacitance loads. --- ### Pin Configuration (SOT-23-14) ```text 1: OUT A 8: OUT C 2: -IN A 9: -IN C 3: +IN A 10: +IN C 4: V+ 11: V- (GND) 5: +IN B 12: +IN D 6: -IN B 13: -IN D 7: OUT B 14: OUT D ```