## Overview of LM224-P14-R The **LM224-P14-R** is a specific part number for a widely used electronic component: the **Quadruple Operational Amplifier (Op-Amp)**. It belongs to the LM224 family, known for being cost-effective and versatile in low-power applications. --- ### 1. Part Number Breakdown Understanding the suffix helps identify the physical and logistical properties of the chip: | Code Segment | Meaning | | :--- | :--- | | **LM224** | The base series (Industrial grade quad op-amp). | | **P14** | Typically refers to the **TSSOP-14** or **PDIP-14** package (14-pin count). | | **R** | Stands for **Tape & Reel** (packaging format for automated assembly). | --- ### 2. Core Technical Specifications The LM224 is designed to operate from a single power supply over a wide range of voltages. | Parameter | Specification | | :--- | :--- | | **Number of Channels** | 4 Independent Amplifiers | | **Supply Voltage (Single)** | 3V to 32V | | **Supply Voltage (Dual)** | ±1.5V to ±16V | | **Input Offset Voltage** | 2mV (Typical) | | **Gain Bandwidth Product** | 1.2 MHz | | **Operating Temperature** | -25°C to +85°C (Industrial Grade) | | **Quiescent Current** | 0.8mA (Low power consumption) | --- ### 3. Key Features * **Wide Supply Range:** Can be powered by common logic levels (5V) or higher industrial voltages (24V). * **Single Supply Operation:** Unlike older op-amps that require both positive and negative rails, the LM224 can function with the negative rail tied to ground. * **Internal Frequency Compensation:** Eliminates the need for external components to maintain stability. * **Low Input Bias Current:** Minimizes errors when used with high-impedance sensors. --- ### 4. Pin Configuration (14-Pin Layout) The "14" in the part number indicates a 14-pin arrangement. The standard layout for a quad op-amp is: ```text Pin 1: Output 1 Pin 14: Output 4 Pin 2: Inverting (-) 1 Pin 13: Inverting (-) 4 Pin 3: Non-Inv (+) 1 Pin 12: Non-Inv (+) 4 Pin 4: VCC (Positive) Pin 11: GND / VEE (Negative) Pin 5: Non-Inv (+) 2 Pin 10: Non-Inv (+) 3 Pin 6: Inverting (-) 2 Pin 9: Inverting (-) 3 Pin 7: Output 2 Pin 8: Output 3 ``` --- ### 5. Common Applications * **Transducer Amplifiers:** Scaling signals from pressure or temperature sensors. * **DC Gain Blocks:** Simple signal boosting. * **Active Filters:** Creating low-pass or high-pass filters for audio or sensor data. * **Comparators:** Comparing two voltages (though dedicated comparators like LM339 are faster).