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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TL064CD

Name: TL064CD
Brand: STMicroelectronics
SKU: TL064CD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL064CD

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TL064CD.pdf

Description:: IC OPAMP JFET 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:12,942

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Product details

Overview

TL064CD from STMicroelectronics is a low-power JFET-input quad operational amplifier designed for precision analog signal conditioning in space-constrained, power-sensitive systems. It delivers 3.5 V/µs slew rate, ±11.5 V input common-mode range (up to V_CC), 10¹² Ω input resistance, and 200 µA per amplifier supply current at ±15 V, enabling use in battery-powered instrumentation front-ends and multi-channel sensor interfaces.

For engineers reviewing the TL064CD datasheet, TL064CD pinout, TL064CD application, or TL064CD equivalent, key selection criteria include its JFET-input bias current (≤200 pA typ.), channel separation (120 dB), output short-circuit protection, and SO-14 package compatibility with legacy DIP-14 layouts - critical for upgrading analog subsystems without board redesign.

Technical Context

The TL064CD integrates four matched JFET-input op-amps on a single monolithic die, using high-voltage JFETs for ultra-low input bias current and bipolar transistors for robust output drive. Its internal frequency compensation ensures unity-gain stability across all four channels without external components.

It operates over 0°C to +70°C with ±6 V to ±18 V dual-supply capability (6–36 V total), supports rail-to-rail input common-mode voltage (±11.5 V min), and maintains 1 MHz gain-bandwidth product with 100 pF capacitive load - making it suitable for active filters, audio line drivers, and multi-stage DC-coupled amplifiers where channel crosstalk must be minimized.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Current	200 µA per amplifier - enables 4-channel analog signal processing in sub-1 mA total system bias current designs.
Slew Rate	3.5 V/µs - supports clean 100 kHz small-signal amplification and fast settling in data acquisition front-ends.
Input Resistance	10¹² Ω - preserves signal integrity from high-impedance sources like piezoelectric sensors or pH electrodes.
Input Offset Voltage	3–15 mV max - suitable for DC-coupled applications requiring <1% gain error at 100× amplification.
Channel Separation	120 dB - prevents inter-channel crosstalk in multi-signal monitoring systems (e.g., 4-channel ECG or vibration sensing).
Common-Mode Range	±11.5 V (min) with ±15 V supply - allows direct interfacing to signals near supply rails without level-shifting circuitry.
Output Short-Circuit Duration	Infinite - enables robust operation in industrial environments where transient overloads or wiring faults may occur.

Pinout & Package

TL064CD is supplied in a 14-lead SOIC (SO-14) plastic micropackage, 3.9 mm wide, with 1.27 mm pitch and gull-wing leads. The package meets ECOPACK® environmental compliance standards and is compatible with standard surface-mount reflow processes.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input (A)	High-impedance differential input node for Channel A; accepts signals up to ±11.5 V with ±15 V supply.
2	Non-inverting Input (A)	High-Z input for Channel A; used in non-inverting configurations or as reference point in instrumentation topologies.
3	Output (A)	Class-AB output stage capable of ±10 V swing into 10 kΩ load; includes short-circuit protection.
4	V_CC–	Negative supply rail connection; referenced to system ground in single-supply configurations via virtual ground.
5	Inverting Input (B)	Independent high-Z input for Channel B; electrically isolated from Channel A except through shared supply pins.
6	Non-inverting Input (B)	Input for Channel B; matches Channel A's offset and bias performance within same die.
7	Output (B)	Second independent output; 120 dB channel separation ensures minimal coupling to other channels.
8	V_CC+	Positive supply rail; supports up to ±18 V operation; decoupling capacitor required near this pin.
9	Inverting Input (C)	Third channel input; identical electrical specs to Channels A/B; enables compact multi-channel filtering.
10	Non-inverting Input (C)	Non-inverting input for Channel C; usable in parallel-configured summing or averaging circuits.
11	Output (C)	Third output; shares thermal and supply coupling with other channels but maintains specified AC/DC specs.
12	Inverting Input (D)	Fourth channel inverting input; supports full quad functionality in single-package space-constrained designs.
13	Non-inverting Input (D)	Final input node; enables simultaneous processing of four independent analog signals with matched characteristics.
14	Output (D)	Fourth output; completes quad architecture; allows independent gain/feedback per channel without interdependence.

Key Features

Feature	Design Value
Very low power consumption	200 µA per amplifier enables 4-channel operation under 1 mA total supply current - ideal for portable and energy-harvesting systems.
High input impedance JFET stage	10¹² Ω input resistance minimizes loading on high-Z sensors (e.g., electret mics, thermopiles) without external buffers.
Output short-circuit protection	Continuous short-circuit tolerance eliminates need for external current-limiting resistors in field-deployed equipment.
Latch-up free operation	Guaranteed immunity to CMOS latch-up during overvoltage transients - critical in mixed-signal industrial control modules.
Wide common-mode and differential input range	±11.5 V common-mode range with ±15 V supply allows direct interface to ±10 V industrial sensor outputs without attenuation.

Applications

Audio Line Distribution

Multi-Channel Sensor Signal Conditioning

Use Scenario: Distributing a single line-level audio source to four independent recording or monitoring paths.

IC Role / Device Role / Timing Role: Quad op-amp configured as unity-gain voltage followers to isolate and buffer each output path.

Use Value: 120 dB channel separation prevents audible crosstalk between outputs; low 200 µA/channel current enables fan-out without heat buildup.

Use Scenario: Simultaneous amplification of four thermocouple or strain gauge outputs in a PLC analog input module.

IC Role / Device Role / Timing Role: Four independent inverting or non-inverting amplifiers with matched gain and offset for calibrated multi-sensor measurement.

Use Value: Matched JFET input stages ensure consistent bias current across channels, reducing calibration drift in temperature-varying environments.

DC-Coupled Instrumentation Amplifier Front-End

Battery-Powered Portable Data Logger

Use Scenario: First-stage amplification in a 4-channel medical-grade ECG front-end requiring DC coupling and high CMRR.

IC Role / Device Role / Timing Role: Quad op-amp implementing three-op-amp IA topology (two inputs + one difference amplifier) plus reference buffer.

Use Value: ±11.5 V input common-mode range accommodates electrode offset voltages; 10¹² Ω input resistance avoids signal degradation from skin-electrode impedance.

Use Scenario: Analog signal chain in a handheld environmental monitor logging temperature, humidity, light, and CO₂.

IC Role / Device Role / Timing Role: Four-channel signal conditioner driving successive approximation ADC inputs with programmable gain and filtering.

Use Value: Total quiescent current <1 mA extends battery life in AA/AAA-powered devices; SO-14 footprint saves PCB area versus discrete solutions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TL074CD	Higher slew rate (13 V/µs), lower noise (18 nV/√Hz), but higher supply current (2.8 mA per amp).	Better for wideband audio or fast-settling data acquisition; unsuitable for ultra-low-power battery operation.	Select TL074CD when bandwidth and noise dominate over power; avoid when total system current budget is <2 mA.
RC4136N	Lower input offset (0.5 mV typ.), wider temp range (–40°C to +105°C), but no SO-14 option - only DIP-14.	Preferred for industrial temperature ranges and precision DC applications; requires through-hole assembly or adapter.	Choose RC4136N for extended temperature reliability and tighter DC specs; accept larger footprint and lead-time trade-offs.

Compared with TL074CD and RC4136N, TL064CD uniquely balances ultra-low power (200 µA), SO-14 packaging, and sufficient AC performance (1 MHz GBW, 3.5 V/µs) for cost-sensitive, space-constrained, and battery-aware analog subsystems - making it optimal where power efficiency and layout density outweigh raw speed or precision.

Availability

TL064CD is available at Aetrix Electronics and suitable for audio distribution systems, multi-channel sensor interfaces, portable data loggers, and DC-coupled instrumentation requiring stable component supply across production lifecycles.

Supply support for TL064CD 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 ICs for industrial, automotive, and consumer markets.

TL064CD belongs to ST's legacy precision analog op-amp product line, engineered specifically for low-power, high-input-impedance general-purpose amplification in cost-sensitive industrial and instrumentation applications.

FAQ

What is the maximum supply voltage for TL064CD?

The absolute maximum supply voltage is ±18 V (36 V total), but the recommended operating range is ±6 V to ±18 V. Operation outside ±18 V risks permanent damage. Electrical specifications are guaranteed from ±6 V to ±15 V; at ±18 V, output swing and thermal dissipation require careful PCB layout and heatsinking.

Does TL064CD support single-supply operation?

Yes - TL064CD can operate from a single +12 V supply with appropriate biasing. Its input common-mode range extends to V_CC–, allowing inputs down to ground, and output swing reaches within ~1.5 V of rails. A virtual ground at V_CC/2 is required for AC-coupled signals, and input coupling capacitors must be sized for low-frequency response.

Is TL064CD pin-compatible with TL074CD?

Yes - TL064CD and TL074CD share identical SO-14 and DIP-14 pinouts and pin functions. They are direct drop-in replacements in terms of physical layout and basic connectivity. However, differences in supply current, noise, and slew rate mean circuit performance (e.g., settling time, thermal rise) must be verified post-replacement.

What is the thermal resistance (R_thJA) of TL064CD in SO-14 package?

The typical junction-to-ambient thermal resistance for TL064CD in SO-14 package is 105 °C/W, measured on a standard JEDEC 2-layer test board. With 200 µA per amplifier (800 µA total) and ±15 V supplies, power dissipation is ~12 mW - resulting in negligible temperature rise (<1.3°C) under normal conditions, even without copper pour.

TL064CD Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Amplifier Type:: J-FET

Number of Circuits:: 4

Output Type:: -

Slew Rate:: 3.5V/µs

Gain Bandwidth Product:: 1 MHz

-3db Bandwidth:: -

Current - Input Bias:: 30 pA

Voltage - Input Offset:: 3 mV

Current - Supply:: 200µA (x4 Channels)

Current - Output / Channel:: 20 mA

Voltage - Supply Span (Min):: 6 V

Voltage - Supply Span (Max):: 36 V

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

TL064CD FAQ

1.How can I place an order for TL064CD through Aetrix?

Please submit a Request for Quotation (RFQ) for TL064CD on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TL064CD reliable?

The price and inventory of TL064CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL064CD is usually 5 days.

3.What payment methods are accepted for TL064CD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL064CD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL064CD?

TL064CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL064CD order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TL064CD?

For technical support, including TL064CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL064CD requirements.

6.How does Aetrix verify that TL064CD is sourced from the original manufacturer or authorized distributors?

All TL064CD products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TL064CD meets industry standards.

7.What is the process for return or replacement of TL064CD?

All TL064CD units undergo pre-shipment inspection (PSI). If there is an issue with TL064CD, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TL064CD part is unused and in its original packaging.

Return procedure for TL064CD:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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