TL074BCDR: High-Performance JFET Quad Operational Amplifier by Texas Instruments

The TL074BCDR is a precision quad operational amplifier (op-amp) from Texas Instruments, renowned for its JFET input stage and exceptional performance in analog signal processing. This comprehensive guide delves into its specifications, advantages, and diverse applications to help engineers optimize designs for audio, industrial, and medical systems.

Product Overview

Part of Texas Instruments' robust lineup of linear ICs, the TL074BCDR integrates four independent JFET-based op-amps in a compact 14-SOIC package (3.90mm width). Its surface-mount design (SMT) ensures compatibility with automated PCB assembly, while the operating temperature range (0 C to 70 C) guarantees reliability across environments.

Key Features & Specifications

1. JFET Input Technology

• Ultra-Low Input Bias Current: 65 pA minimizes signal distortion in high-impedance circuits.
• Low Input Offset Voltage: 2 mV enhances accuracy for precision instrumentation.

2. Dynamic Performance

• Slew Rate: 13 V/ s enables crisp response in high-frequency applications.
• Gain Bandwidth Product: 3 MHz supports audio and control system needs.

3. Power Efficiency

• Supply Voltage Range: 5V to 15V (dual) or 10V 30V (single), offering design flexibility.
• Low Quiescent Current: 1.4 mA per amplifier (5.6 mA total) extends battery life.

4. Packaging & Durability

• 14-pin SOIC (Surface Mount) with moisture-resistant coating per JEDEC standards.
• ESD Protection: Up to 2 kV (HBM) safeguards against electrostatic discharge.

Applications

The TL074BCDR excels in:

1. Professional Audio Gear: Preamplifiers, equalizers, and active filters due to low noise (18 nV/ Hz).
2. Industrial Automation: Signal conditioning for sensors (RTDs, strain gauges) and PID controllers.
3. Medical Devices: ECG amplifiers and patient monitors requiring high CMRR (100 dB).
4. Consumer Electronics: Home theater systems and gaming consoles.

Why Choose TL074BCDR Over Competitors?

• Cost-Effective Integration: Quad configuration reduces BOM costs versus discrete op-amps.
• TI's Quality Assurance: Industry-leading reliability with >10-year lifecycle support.
• Design Resources: Access to SPICE models, evaluation modules, and application notes.

Technical Deep Dive

For advanced users, the TL074BCDR's internal architecture includes:

• Trimmed input stages for offset voltage minimization.
• Short-circuit protection on all outputs.
• Wide output swing (typically 12V at 15V supply).

Purchasing & Support

Available through authorized distributors like Digi-Key and Mouser. Volume pricing starts at $0.75/unit. For datasheets and design tools, visit TI's official page.

Optimize your circuit performance today with the TL074BCDR the engineer's choice for precision analog design.