onsemi TL064CN

Overview

TL064CN from STMicroelectronics is a low-power JFET-input quad operational amplifier designed for precision analog signal conditioning in cost-sensitive industrial and consumer systems. It delivers 200 µA supply current per amplifier, ±11.5 V input common-mode range (with ±15 V supplies), 3.5 V/µs slew rate, and 1 MHz gain-bandwidth product - enabling stable AC-coupled audio preamplification, sensor signal buffering, and multi-channel active filtering at ambient temperatures up to +70°C.

For engineers reviewing the TL064CN datasheet, TL064CN pinout, TL064CN application, or TL064CN equivalent, key selection considerations include its JFET-input high-impedance (10¹² Ω), low input bias current (30–400 pA), output short-circuit protection, and DIP14 package compatibility with legacy through-hole PCB layouts - critical for maintenance of existing instrumentation and audio distribution hardware.

Technical Context

The TL064CN integrates four matched JFET-input op-amp channels on a single monolithic die, using high-voltage JFETs for input stages and bipolar transistors for output drivers. Its internal frequency compensation ensures unity-gain stability with 10 kΩ loads and 100 pF capacitive loading, while latch-up-free operation supports robustness in mixed-signal environments.

It operates over ±6 V to ±18 V dual supplies (or 12–36 V single supply), with rail-to-rail input common-mode range extending to V_CC+, and output swing of ±20 V into 10 kΩ. Channel separation exceeds 120 dB at AV = 100, minimizing crosstalk in multi-channel signal routing applications such as audio distributor amplifiers.

Key Specifications

Pinout & Package

Dual-in-line plastic package (DIP14), 0.3-inch body width, through-hole mounting. Pin 1 marked by notch or dot; top view shown in datasheet Figure 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad JFET-input operational amplifier applications.

Compared with TL064CN, TL074CD trades 12× higher power for 3.7× faster slew rate and tighter offset, while RC4136N sacrifices integrated compensation and low bias current for extended voltage range and flexibility in high-precision feedback design.

Availability

TL064CN is available at Aetrix Electronics and suitable for audio distribution systems, industrial sensor interfaces, multi-channel active filters, and legacy equipment repair requiring stable component supply with long-term manufacturing continuity.

Supply support for TL064CN includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering automotive, industrial, and power management solutions with emphasis on reliability and longevity.

The TL064 series belongs to ST's precision analog portfolio, engineered specifically for cost-effective, low-power quad op-amp applications in industrial control, test equipment, and consumer audio where JFET input performance and DIP14 compatibility are essential.

FAQ

Is TL064CN pin-compatible with LM324?

No - TL064CN uses a JFET-input architecture with different input stage biasing and higher input impedance (10¹² Ω vs. 200 kΩ), resulting in incompatible input current behavior and offset characteristics. While both are quad op-amps in DIP14 packages, pin functions match but electrical interface requirements differ significantly; direct substitution may cause instability or inaccurate DC operating points.

What is the maximum allowable supply voltage for TL064CN?

The absolute maximum supply voltage is ±18 V (or 36 V total across V_CC+ and V_CC−). Operation above this risks permanent damage. The recommended operating range is ±6 V to ±18 V, with optimal performance observed at ±15 V per the datasheet's electrical characterization conditions.

Does TL064CN support single-supply operation?

Yes - it operates from a single supply of 12 V to 36 V. However, the input common-mode range does not extend to ground; minimum input voltage is typically −12 V relative to V_CC−. For true single-supply use with ground-referenced inputs, a level-shifting bias network or rail-to-rail input op-amp is required.

Can TL064CN drive capacitive loads directly?

It is characterized for stable operation with up to 100 pF capacitive load at unity gain and 10 kΩ resistive load. Driving larger capacitances (e.g., >200 pF) risks peaking or oscillation; isolation resistors (≥100 Ω) or external compensation are required for cable driving or ADC input buffering applications.