TL071CP JFET Single Operational Amplifier IC DIP-8

TL071CP JFET Single Operational Amplifier IC DIP-8 is a high-performance single operational amplifier that utilizes high-voltage JFET (Junction Field-Effect Transistor) input transistors. This design delivers exceptionally low input bias current and high input impedance, making the TL071 an excellent choice for signal processing applications where source loading must be minimal. The device features a wide bandwidth and high slew rate, consequently, it handles fast-changing signals with high fidelity. Because of its reliable performance and low noise characteristics, audio engineers and circuit designers frequently choose the TL071CP for preamplifiers, active filters, and general signal conditioning circuits. Furthermore, its standard DIP-8 package ensures easy integration into prototype or production through-hole circuit boards.

Key Features:

• JFET Input Stage: Provides extremely high input impedance (typically 10¹² Ω), minimizing current drawn from the signal source.
• Low Input Bias Current: Features a low typical input bias current of 65 pA, which is ideal for working with high-impedance sensors and sources.
• Low Noise and Distortion: The JFET front end ensures very low harmonic distortion and low voltage noise density, making it perfect for sensitive audio applications.
• Wide Bandwidth: Offers a typical Gain Bandwidth Product (GBWP) of 3 MHz, supporting applications requiring high-frequency signal amplification.
• High Slew Rate: Provides a fast typical slew rate of 13 V/µs, allowing the output voltage to change quickly without distortion.

Technical Specifications:

• Amplifier Type: Single Operational Amplifier (Op Amp)
• Input Type: JFET
• Number of Channels: 1
• Gain Bandwidth Product (GBWP): 3 MHz (Typ.)
• Slew Rate: 13 V/µs (Typ.)
• Input Bias Current (I_B): 65 pA (Typ.)
• Supply Voltage Range (V_CC): ±5 V to ±18 V (Dual Supply) or 10 V to 36 V (Single Supply)
• Operating Temperature Range: 0°C to +70°C (Commercial)

Mechanical Specifications:

• Package Type: DIP-8 (Dual In-line Package, 8-Pin)
• Mounting: Through-Hole Technology (THT)
• Materials: Molded plastic encapsulation

Dimensions:

• Body Length: ≈ 9.2 mm
• Body Width: ≈ 6.4 mm
• Pin Pitch (Distance between pins): 2.54 mm (0.1 inch)
• Row Spacing (Distance between rows): 7.62 mm (0.3 inch)

Pinout and Wiring:

• Pin 1 (Offset Null 1): Used with Pin 5 for connecting a potentiometer to trim the output offset voltage to zero.
• Pin 2 (Inverting Input): Connect the inverting input signal or feedback network here.
• Pin 3 (Non-Inverting Input): Connect the non-inverting input signal here.
• Pin 4 (V_CC−): Connect to the negative power supply rail (e.g., −15 V) or Ground in a single-supply setup.
• Pin 5 (Offset Null 2): Used with Pin 1 to trim offset voltage.
• Pin 6 (Output): The amplified signal exits the Op Amp here.
• Pin 7 (V_CC+): Connect to the positive power supply rail (e.g., +15 V).
• Pin 8 (N.C.): Not connected internally; leave this pin floating.

Datasheet Reference:

• Download Texas Instruments TL071 JFET Single Op Amp Datasheet

Commonly Used in:

• Audio Equipment: Found in guitar effect pedals, mixing consoles, and high-fidelity preamplifiers due to its low noise.
• Test and Measurement: Used in sensitive instrumentation amplifiers and data acquisition front-ends.
• Active Filter Design: Ideal for building high-Q active filters (Butterworth, Chebyshev) due to its high input impedance.

Applications:

• Voltage Follower/Buffer: Utilizing the high input impedance to effectively isolate a signal source from a load.
• Photodiode Amplifiers: Since the TL071 has low input bias current, it perfectly suits transimpedance amplifier circuits for light sensors.
• Sample-and-Hold Circuits: The low input bias current minimizes droop (voltage decay) on the holding capacitor.
• High-Impedance Sensor Interfaces: Interfacing with piezoelectric sensors, high-impedance microphones, or pH probes.

Equivalent Models:

• LF351 (Texas Instruments/National Semiconductor): A closely related JFET input op amp that offers similar performance characteristics and pinout.
• TL081 (Texas Instruments): A lower-cost alternative in the same family, however, it generally exhibits slightly higher noise specifications.
• OP07: While not JFET input, the OP07 serves as a common BJT alternative for precision, low-drift DC applications where high input impedance is not the primary concern.

Package Includes:

• 1 x TL071CP JFET Single Operational Amplifier IC DIP-8