## Overview of the TL084L-S14-R The **TL084L-S14-R** is a high-speed, quad JFET-input operational amplifier (Op-Amp). It is widely used in applications requiring high input impedance, low input bias currents, and high slew rates. --- ### 1. Key Technical Specifications | Parameter | Value / Specification | | :--- | :--- | | **Number of Channels** | 4 (Quad Op-Amp) | | **Input Type** | JFET (High Impedance) | | **Operating Supply Voltage** | ±3V to ±18V (or 6V to 36V single supply) | | **Slew Rate** | 13 V/µs (Typical) | | **Gain Bandwidth Product** | 3 MHz | | **Input Bias Current** | 30 pA (Typical) | | **Package Type** | SOP-14 (Small Outline Package) | | **Packaging** | Tape & Reel (indicated by the "-R") | --- ### 2. Part Number Breakdown Understanding the suffix codes helps identify the specific physical and logistical properties of the component: * **TL084**: The base model number (Quad JFET Op-Amp family). * **L**: Often indicates a "Lead-Free" or "Low-power/specific grade" designation depending on the manufacturer (commonly UTC - Unisonic Technologies). * **S14**: Refers to the **SOP-14** package (14-pin Small Outline Package). * **R**: Indicates **Tape & Reel** packaging for automated SMT assembly. --- ### 3. Pin Configuration (SOP-14) The 14-pin layout contains four independent operational amplifiers sharing a single power supply. | Pin Number | Function | Pin Number | Function | | :--- | :--- | :--- | :--- | | 1 | Output 1 | 8 | Output 3 | | 2 | Inverting Input 1 | 9 | Inverting Input 3 | | 3 | Non-inverting Input 1 | 10 | Non-inverting Input 3 | | 4 | **VCC+** (Positive Supply) | 11 | **VCC-** (Negative Supply/GND) | | 5 | Non-inverting Input 2 | 12 | Non-inverting Input 4 | | 6 | Inverting Input 2 | 13 | Inverting Input 4 | | 7 | Output 2 | 14 | Output 4 | --- ### 4. Common Applications Due to its high input impedance and fast response, this part is ideal for: 1. **Audio Preamplifiers:** Low distortion and high speed for high-fidelity audio processing. 2. **Active Filters:** High-order low-pass, high-pass, or band-pass filters. 3. **Data Acquisition:** Buffering high-impedance sensors. 4. **Integrators:** Taking advantage of the very low input bias current. --- ### 5. Features & Benefits * **Low Power Consumption:** Efficient for multi-channel designs. * **Internal Frequency Compensation:** Ensures stability without external capacitors. * **Latch-Up Free Operation:** Robust against electrical transients. * **High Input Impedance:** Minimal loading effect on the preceding circuit stages.