## Overview of TL034CDRE4 The **TL034CDRE4** is a high-speed, JFET-input quad operational amplifier (op-amp). It belongs to a family of devices designed to offer low power consumption while maintaining high input impedance and high slew rates. --- ### Key Specifications Below are the primary electrical and physical characteristics of the TL034CDRE4: | Parameter | Specification | | :--- | :--- | | **Number of Channels** | 4 (Quad) | | **Input Type** | JFET-Input | | **Supply Voltage (Max)** | ±18V (or 36V single supply) | | **Supply Current (per amp)** | ~200 µA (Low Power) | | **Slew Rate** | 5.1 V/µs | | **Gain Bandwidth Product** | 1.1 MHz | | **Package / Case** | SOIC-14 | | **Operating Temperature** | 0°C to 70°C | --- ### Internal Structure and Pinout The TL034CDRE4 integrates four independent operational amplifiers into a single 14-pin Small Outline Integrated Circuit (SOIC) package. #### Pin Configuration (SOIC-14) 1. **Output 1** 2. **Inverting Input 1 (-)** 3. **Non-Inverting Input 1 (+)** 4. **Vcc+** (Positive Supply) 5. **Non-Inverting Input 2 (+)** 6. **Inverting Input 2 (-)** 7. **Output 2** 8. **Output 3** 9. **Inverting Input 3 (-)** 10. **Non-Inverting Input 3 (+)** 11. **Vcc-** (Negative Supply/Ground) 12. **Non-Inverting Input 4 (+)** 13. **Inverting Input 4 (-)** 14. **Output 4** --- ### Features and Benefits 1. **Low Input Bias Current:** Because it uses JFET inputs, the bias current is extremely low (pico-ampere range), making it ideal for high-impedance sensor interfaces. 2. **Low Power Consumption:** It is optimized for battery-powered applications where current draw must be minimized without sacrificing speed significantly. 3. **High Slew Rate:** Compared to standard low-power op-amps like the LM324, the TL03x series offers a much higher slew rate (5.1 V/µs), allowing for better pulse response and less distortion at higher frequencies. 4. **E4 Suffix Meaning:** The "E4" suffix typically indicates that the component is **Lead-Free (RoHS Compliant)** and uses "Green" mold compound (NiPdAu lead finish). --- ### Typical Applications * **High-Impedance Buffers:** Used in pH probes or piezoelectric sensors. * **Active Filters:** Excellent for audio or signal processing due to its speed. * **Battery-Powered Instrumentation:** Low current draw extends battery life. * **Integrator Circuits:** Low input bias current prevents "drift" in integration over time.