## Technical Overview: TL084L-P14-R The **TL084L-P14-R** is a high-speed, quad JFET-input operational amplifier (Op-Amp). It is widely recognized for its high input impedance and low input bias current, making it ideal for high-fidelity audio applications, data acquisition, and signal conditioning. ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the TL084L. | Parameter | Specification | | :--- | :--- | | **Op-Amp Type** | JFET-Input (Quad) | | **Number of Channels** | 4 | | **Supply Voltage (Vcc)** | ±5V to ±18V | | **Slew Rate** | 13 V/µs (Typical) | | **Gain Bandwidth Product** | 3 MHz | | **Input Bias Current** | 30 pA (Typical) | | **Input Offset Voltage** | 3 mV (Typical) | | **Package Type** | TSSOP-14 (R = Tape & Reel) | --- ### 2. Functional Features * **Low Power Consumption:** Designed to operate efficiently across a wide voltage range. * **Internal Frequency Compensation:** Eliminates the need for external components to maintain stability in closed-loop configurations. * **Low Harmonic Distortion:** Typically 0.003%, which is excellent for audio processing. * **Latch-Up Free Operation:** Robust design prevents common failure modes in power-up sequences. * **High Input Impedance:** JFET inputs ensure minimal loading on the preceding circuit stages. --- ### 3. Pin Configuration (P14 Package) The "P14" suffix refers to the 14-pin package layout. | Pin Number | Function | Description | | :--- | :--- | :--- | | 1, 7, 8, 14 | OUTPUT | Output of Op-Amps 1, 2, 3, and 4 | | 2, 6, 9, 13 | IN- | Inverting Input | | 3, 5, 10, 12 | IN+ | Non-Inverting Input | | 4 | Vcc+ | Positive Power Supply | | 11 | Vcc- | Negative Power Supply (or Ground) | --- ### 4. Part Number Breakdown Understanding the suffix nomenclature: * **TL084**: The base model (Quad JFET Op-Amp). * **L**: Often indicates "Low Carbon" or a specific lead-free process (manufacturer dependent, typically UTC). * **P14**: Refers to the physical package (TSSOP-14). * **R**: Indicates the packaging format (Tape & Reel). --- ### 5. Common Applications 1. **Audio Preamplifiers:** Used in mixers and tone control circuits due to low noise. 2. **Active Filters:** High slew rate allows for precise filtering of high-frequency signals. 3. **Sample and Hold Circuits:** Low input bias current prevents voltage "droop" on capacitors. 4. **Integrators:** High input impedance allows for long-duration integration without drift.