TL082CP

TL082CP: Dual JFET Input Operational Amplifier

Overview

The TL082CP is a high-speed, low-cost dual JFET input operational amplifier that incorporates advanced BI-FET II™ technology. This technology enables an internally trimmed input offset voltage, ensuring high precision and performance. The device is designed to operate with low supply current while maintaining a wide gain bandwidth product and fast slew rate. Its well-matched high-voltage JFET input devices provide extremely low input bias and offset currents, making it ideal for applications requiring high input impedance and low noise.

The TL082CP is pin-compatible with the standard LM1558, allowing designers to easily upgrade existing designs for improved performance. This operational amplifier is widely used in audio processing, instrumentation, and signal conditioning applications due to its excellent electrical characteristics and reliability.

Features

• Internally Trimmed Offset Voltage: 15 mV maximum ensures high precision.
• Low Power Consumption: Operates with low supply current, making it energy-efficient.
• High Gain Bandwidth Product: Delivers superior frequency response for high-speed applications.
• Fast Slew Rate: Enhances performance in dynamic signal processing.
• Low Input Bias and Offset Currents: Minimizes errors in high-impedance circuits.
• High Input Impedance: JFET input stage provides excellent signal integrity.
• Pin-Compatible with LM1558: Easy drop-in replacement for legacy designs.
• Wide Supply Voltage Range: Supports flexible power supply configurations.

Applications

The TL082CP is suitable for a broad range of applications, including:

• Audio Processing: Preamplifiers, active filters, and tone control circuits.
• Instrumentation Amplifiers: High-precision measurement systems.
• Signal Conditioning: Sensor interfaces and data acquisition systems.
• Active Filters: Low-pass, high-pass, and band-pass filter designs.
• Analog Computing: Integrators, differentiators, and summing amplifiers.
• Medical Electronics: Biomedical signal amplification and processing.

Electrical Characteristics

The following table summarizes the key electrical specifications of the TL082CP under typical operating conditions (V_CC = ±15V, T_A = 25°C unless otherwise noted):

• Input Offset Voltage: 3 mV (typical), 15 mV (maximum)
• Input Bias Current: 30 pA (typical), 200 pA (maximum)
• Input Offset Current: 5 pA (typical), 100 pA (maximum)
• Gain Bandwidth Product: 3 MHz (typical)
• Slew Rate: 13 V/µs (typical)
• Supply Voltage Range: ±5V to ±18V
• Supply Current per Amplifier: 1.4 mA (typical)
• Common Mode Rejection Ratio (CMRR): 80 dB (typical)
• Output Voltage Swing: ±12V (typical, with ±15V supply)

Package Information

The TL082CP is available in an industry-standard 8-pin PDIP (Plastic Dual In-line Package), which is widely used for through-hole PCB assembly. The package dimensions and pin configuration are as follows:

• Package Type: 8-Pin PDIP
• Dimensions: 9.81 mm x 6.35 mm (body size)
• Pinout Configuration:
  • Pin 1: Output A
  • Pin 2: Inverting Input A
  • Pin 3: Non-Inverting Input A
  • Pin 4: V_CC- (Negative Supply)
  • Pin 5: Non-Inverting Input B
  • Pin 6: Inverting Input B
  • Pin 7: Output B
  • Pin 8: V_CC+ (Positive Supply)
• Operating Temperature Range: -40°C to +105°C
• Storage Temperature Range: -65°C to +150°C

Conclusion

The TL082CP is a versatile and high-performance dual operational amplifier that combines low power consumption with excellent speed and precision. Its JFET input stage ensures low noise and high input impedance, making it ideal for a wide range of analog signal processing applications. Whether used in audio systems, instrumentation, or active filters, the TL082CP provides reliable performance and easy integration into existing designs.