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

STMicroelectronics TL064ACDT

Name: TL064ACDT
Brand: STMicroelectronics
SKU: TL064ACDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL064ACDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TL064ACDT.pdf

Description:: IC OPAMP JFET 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TL064ACDT 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 200 µA supply current per amplifier, 3.5 V/µs slew rate, ±11.5 V input common-mode range (with ±15 V supplies), and 1 MHz gain-bandwidth product - enabling stable AC-coupled audio preamplification, sensor signal buffering, and multi-channel active filtering.

For engineers reviewing the TL064ACDT datasheet, TL064ACDT pinout, TL064ACDT application, or TL064ACDT equivalent, key selection criteria include its JFET-input high-impedance (10¹² Ω), low input bias current (≤200 pA), output short-circuit protection, and SO-14 package compatibility with surface-mount production - critical for battery-powered instrumentation and industrial control front-ends.

Technical Context

The TL064ACDT 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 across temperature (–40°C to +105°C) and supply voltage (±3 V to ±18 V).

It operates with rail-to-rail input common-mode range up to V_CC+, supports differential input voltages up to ±30 V, and maintains 120 dB channel separation at AV = 100 - making it suitable for multi-stage signal chains where crosstalk and DC drift must be minimized.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply current	200 µA per amplifier - enables ultra-low-quiescent operation in always-on sensor nodes and portable medical devices.
Slew rate	3.5 V/µs - supports faithful reproduction of audio-band signals (up to ~100 kHz) without distortion in gain-of-10 configurations.
Input bias current	≤200 pA (max, TL064AC grade) - minimizes voltage error in high-impedance source interfaces (e.g., piezoelectric sensors, pH electrodes).
Input resistance	10¹² Ω - preserves signal integrity when driving capacitive loads or interfacing with passive RC networks.
Gain-bandwidth product	1 MHz - sets usable closed-loop bandwidth limit (e.g., ~100 kHz at gain = 10), sufficient for anti-aliasing and tone control filters.
Common-mode rejection	86 dB (typ.) - rejects noise coupled equally to both inputs in noisy industrial environments (e.g., motor drive feedback paths).
Output swing	±13.5 V (min, RL = 10 kΩ, ±15 V supplies) - delivers full dynamic range into standard line-level loads without clipping.

Pinout & Package

TL064ACDT is supplied in a 14-lead SOIC (SO-14) plastic micropackage, 3.9 mm wide, with 1.27 mm pitch and gull-wing leads - compatible with automated SMT assembly and IPC Class 2/3 reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting input (Amplifier A)	High-impedance JFET node accepting negative feedback or signal inversion; requires guarding in high-Z layouts.
2	Non-inverting input (Amplifier A)	High-impedance JFET node for reference or signal injection; sensitive to EMI without proper layout shielding.
3	Output (Amplifier A)	Class-AB push-pull output capable of ±20 mA sink/source; includes internal short-circuit protection.
4	V_CC– (Negative supply)	Ground reference for dual-supply operation; must be decoupled locally with 100 nF ceramic capacitor.
5	Inverting input (Amplifier B)	Independent high-Z input identical to Pin 1; electrically isolated but thermally coupled to other amplifiers.
6	Non-inverting input (Amplifier B)	Independent high-Z input identical to Pin 2; shares same substrate as all four channels.
7	Output (Amplifier B)	Independent output identical to Pin 3; channel separation ≥120 dB prevents inter-channel coupling.
8	V_CC+ (Positive supply)	Power rail for dual-supply operation; requires local 100 nF ceramic decoupling adjacent to pin.
9	Inverting input (Amplifier C)	Third independent high-Z input; pinout symmetry allows compact PCB routing for multi-channel designs.
10	Non-inverting input (Amplifier C)	Third independent high-Z input; matches electrical characteristics of Pins 1 and 5 within 10%.
11	Output (Amplifier C)	Third independent output; thermal derating applies if all four outputs drive heavy loads simultaneously.
12	Inverting input (Amplifier D)	Fourth high-Z input; fully characterized per datasheet Table 3/4 across temperature and supply ranges.
13	Non-inverting input (Amplifier D)	Fourth high-Z input; offset voltage matching between channels ≤5 mV (TL064AC grade).
14	Output (Amplifier D)	Fourth output; total device power dissipation limited to 680 mW (DIP14) or 500 mW (SO-14) at T_A = 25°C.

Key Features

Feature	Design Value
Latch-up free operation	Guaranteed under all valid operating conditions per JEDEC JESD78, eliminating risk of destructive latch-up in transient overvoltage events.
Output short-circuit protection	Internal current limiting sustains indefinite short-to-rail operation without damage or parameter shift.
Wide common-mode input range	Extends to V_CC+ (e.g., +15 V) and down to V_CC– – 1.5 V, enabling direct interface with unbuffered DAC outputs and thermocouple amplifiers.
Low input offset voltage drift	10 µV/°C max - limits thermal-induced DC error to <100 µV over 0°C to +70°C ambient range.
High input impedance	10¹² Ω typical - reduces loading error on high-output-impedance sources (e.g., photodiode transimpedance stages).

Applications

Audio Signal Distribution

Industrial Sensor Conditioning

Use Scenario: Distributing a single line-level audio source to multiple downstream processing paths (e.g., equalization, compression, monitoring) without degradation.

IC Role / Device Role / Timing Role: Quad buffer amplifier providing unity-gain isolation between source and parallel loads.

Use Value: 120 dB channel separation prevents crosstalk; 3.5 V/µs slew rate preserves transient fidelity up to 20 kHz.

Use Scenario: Amplifying low-level signals from RTDs, strain gauges, or thermocouples in programmable logic controller (PLC) analog input modules.

IC Role / Device Role / Timing Role: Precision instrumentation front-end stage with matched DC performance across four channels.

Use Value: ≤7.5 mV max input offset (TL064AC) and 10 µV/°C drift enable <0.1% measurement accuracy over industrial temperature range.

Multi-Channel Active Filters

Battery-Powered Medical Instrumentation

Use Scenario: Implementing fourth-order low-pass or band-pass filtering in portable test equipment requiring simultaneous analysis of multiple sensor bands.

IC Role / Device Role / Timing Role: Four independent gain-setting op-amps in Sallen-Key or state-variable topologies.

Use Value: 1 MHz GBW supports filter cutoff frequencies up to 100 kHz; 200 µA per amplifier extends battery life in handheld analyzers.

Use Scenario: Front-end amplification and level-shifting for ECG/EEG electrode signals in wearable patient monitors.

IC Role / Device Role / Timing Role: Low-noise, low-power biopotential amplifier with high CMRR and input protection.

Use Value: 42 nV/√Hz input noise and 86 dB CMRR reject 50/60 Hz mains interference; 200 µA quiescent current enables >100-hour operation on coin-cell batteries.

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
TL074CDT	Higher slew rate (13 V/µs), lower input noise (18 nV/√Hz), but higher supply current (2.8 mA per amp).	Better suited for wideband audio or fast data acquisition; not viable for microamp-level power budgets.	Select TL074CDT only when bandwidth/noise outweighs quiescent power constraints.
RC4136DT	Lower input bias current (1 pA typ.), wider supply range (±4 V to ±22 V), but no SO-14 packaging option for RC4136 variants.	Preferred for ultra-high-impedance pH or ion-selective electrode circuits; requires DIP or SOIC-16 footprint adaptation.	Choose RC4136DT when sub-picoamp bias current is mandatory and package flexibility is acceptable.

Compared with TL064ACDT, TL074CDT trades 14× higher supply current for 3.7× faster slew rate and 2.3× lower noise, while RC4136DT offers 200× lower input bias current but lacks SO-14 availability - making TL064ACDT the optimal balance of ultra-low power, SO-14 fit, and industrial-grade DC precision.

Availability

TL064ACDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and audio distribution systems requiring stable component supply across extended temperature ranges (–40°C to +105°C) and long-term production continuity.

Supply support for TL064ACDT 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, MCU, power, and MEMS products for industrial, automotive, and consumer markets.

The TL064 series belongs to ST's legacy precision analog portfolio, engineered specifically for cost-sensitive, low-power industrial and instrumentation applications where JFET input performance and SOIC/DIP compatibility are essential.

FAQ

What is the maximum supply voltage for TL064ACDT?

The absolute maximum supply voltage is ±18 V (36 V total), but the recommended operating range is ±3 V to ±18 V. Operation above ±15 V increases power dissipation and may reduce long-term reliability unless thermal design accounts for R_thja = 105 °C/W (SO-14). Derating curves in Figure 10 confirm stable ICC up to ±18 V at 25°C ambient.

Does TL064ACDT support single-supply operation?

Yes - it functions with single-ended supplies (e.g., 0 V and +30 V), provided the input common-mode range (V_ICM) remains within –12 V to +15 V relative to V_CC–. For true rail-to-rail input, external level-shifting or biasing is required since the input stage does not extend to V_CC– - minimum V_ICM is V_CC– – 1.5 V.

How does TL064ACDT handle capacitive loads?

It is internally compensated for unity-gain stability with resistive loads up to 10 kΩ, but capacitive loads >100 pF can induce peaking or oscillation. The datasheet recommends adding a 100 Ω to 470 Ω series resistor between output and load capacitance (Figure 14), or using a feedback capacitor (e.g., 2–10 pF) across the gain-setting resistor to restore phase margin.

Is TL064ACDT RoHS and REACH compliant?

Yes - TL064ACDT carries ECOPACK®2 compliance per STMicroelectronics' public declarations, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The SO-14 package uses lead-free terminations and halogen-free molding compound, verified in ST's material declarations (Doc ID: ECOPACK2-TL064).

TL064ACDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tape & Reel (TR)

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

TL064ACDT FAQ

1.How can I place an order for TL064ACDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TL064ACDT 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 TL064ACDT reliable?

The price and inventory of TL064ACDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL064ACDT is usually 5 days.

3.What payment methods are accepted for TL064ACDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL064ACDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL064ACDT?

TL064ACDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL064ACDT 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 TL064ACDT?

For technical support, including TL064ACDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL064ACDT requirements.

6.How does Aetrix verify that TL064ACDT is sourced from the original manufacturer or authorized distributors?

All TL064ACDT 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 TL064ACDT meets industry standards.

7.What is the process for return or replacement of TL064ACDT?

All TL064ACDT units undergo pre-shipment inspection (PSI). If there is an issue with TL064ACDT, 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 TL064ACDT part is unused and in its original packaging.

Return procedure for TL064ACDT:

1.Submit a request within 90 days.

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

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