Texas Instruments TL064IN

Overview

TL064IN from STMicroelectronics is a low-power JFET-input quad operational amplifier designed for precision analog signal conditioning in industrial and instrumentation 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 distribution and DC-stable sensor front-ends.

For engineers reviewing the TL064IN datasheet, TL064IN pinout, TL064IN application, or TL064IN equivalent, key selection criteria include its JFET-input high impedance (10¹² Ω), low input bias current (≤200 pA), output short-circuit protection, and operation across –40°C to +105°C - critical for thermally demanding embedded control and test equipment designs.

Technical Context

The TL064IN integrates four matched JFET-input op-amp channels on a single monolithic die, using high-voltage JFET and bipolar transistor structures to achieve low offset drift (10 µV/°C) and high CMRR (86 dB). Its internal frequency compensation ensures unity-gain stability with 10 kΩ loads and 100 pF capacitive loading.

It operates from ±6 V to ±18 V dual supplies (or 12–36 V single supply), supports rail-to-rail input common-mode voltage up to V_CC+, and maintains 20 V peak-to-peak output swing into 10 kΩ at ±15 V - making it suitable for wide-dynamic-range signal buffering without external level-shifting.

Key Specifications

Pinout & Package

TL064IN is supplied in a 14-pin plastic DIP (Dual In-line Package) with 2.54 mm lead pitch. The package is through-hole mountable, RoHS-compliant, and rated for operation from –40°C to +105°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL064IN, TL074CDR trades 14× higher quiescent current for 3.7× faster response and lower noise, while RC4136N reduces input bias by two orders of magnitude but sacrifices built-in fault protection - guiding selection based on priority between power, speed, or input leakage.

Availability

TL064IN is available at Aetrix Electronics and suitable for industrial automation, test equipment, and audio infrastructure requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TL064IN 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The TL064 series belongs to ST's precision analog op-amp product line, engineered specifically for cost-sensitive, low-power industrial signal conditioning where JFET input performance and thermal robustness are essential.

FAQ

What is the maximum operating supply voltage for TL064IN?

The absolute maximum supply voltage is ±18 V (or 36 V total across V_CC+ and V_CC–). Operation above ±15 V reduces output swing margin and increases power dissipation; the recommended range is ±6 V to ±15 V for optimal performance and thermal safety in the –40°C to +105°C ambient range.

Does TL064IN require external compensation capacitors?

No. TL064IN features internal frequency compensation optimized for unity-gain stability with resistive loads ≥10 kΩ and capacitive loads ≤100 pF. Adding external compensation may degrade phase margin and increase settling time; it is unnecessary and not recommended per ST's datasheet design guidelines.

Can TL064IN drive capacitive loads directly?

TL064IN is specified for stable operation with up to 100 pF capacitive load in unity-gain configuration. Driving larger capacitive loads (e.g., cables or ADC input capacitance >100 pF) requires isolation via a series resistor (≥100 Ω) or use of a dedicated buffer stage to prevent peaking and oscillation.

How does TL064IN differ from TL064CN in terms of performance?

TL064IN and TL064CN share identical electrical specifications at +25°C, but TL064IN is characterized and guaranteed over –40°C to +105°C, whereas TL064CN is rated only from 0°C to +70°C. Input offset voltage max is 9 mV for TL064IN vs. 20 mV for TL064CN across their respective full temperature ranges - critical for wide-temperature industrial deployments.