The **TL072-P08-R** is a specific part number for a high-speed JFET-input dual operational amplifier (Op-Amp). It is part of the widely used TL07x series, known for its high input impedance and low noise characteristics. --- ### 1. Part Number Breakdown Understanding the suffix codes helps identify the physical and electrical characteristics: | Code Segment | Meaning | | :--- | :--- | | **TL072** | Base model: Dual JFET-input operational amplifier. | | **P08** | Package type: Typically refers to **DIP-8** (Dual In-line Package) or **SOP-8** depending on the manufacturer's internal coding. | | **R** | Packaging style: Usually indicates **Tape & Reel** (for SMD) or a specific RoHS compliance/Revision status. | --- ### 2. Key Technical Specifications The TL072 is favored in audio and signal processing due to its JFET inputs, which minimize current noise. | Parameter | Value (Typical) | | :--- | :--- | | **Supply Voltage Range** | $\pm$3.5V to $\pm$18V | | **Input Bias Current** | 30 pA (Very Low) | | **Slew Rate** | 13 V/µs (High Speed) | | **Gain Bandwidth Product** | 3 MHz | | **Total Harmonic Distortion (THD)** | 0.003% | | **Common-Mode Rejection Ratio** | 100 dB | --- ### 3. Pinout Configuration (8-Pin) As a dual Op-Amp, it contains two independent amplifiers within a single housing. | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | OUTPUT A | Output of the first amplifier | | **2** | IN A- | Inverting input of the first amplifier | | **3** | IN A+ | Non-inverting input of the first amplifier | | **4** | VCC- | Negative power supply | | **5** | IN B+ | Non-inverting input of the second amplifier | | **6** | IN B- | Inverting input of the second amplifier | | **7** | OUTPUT B | Output of the second amplifier | | **8** | VCC+ | Positive power supply | --- ### 4. Common Applications Due to its high input impedance and low harmonic distortion, the TL072 is found in: * **Audio Preamplifiers:** Used in guitar pedals, mixers, and high-fidelity audio gear. * **Active Filters:** High-speed response allows for precise filter designs. * **Integrators/Differentiators:** Low bias current prevents error accumulation in timing circuits. * **Data Acquisition:** Buffering high-impedance sensors before ADC stages. --- ### 5. Schematic Symbol Example ```text VCC+ (8) | |\ | (3) --| \ (1) | >---- Output A (2) --| / |/ | | VCC- (4) ```