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

STMicroelectronics TL061IDT

Name: TL061IDT
Brand: STMicroelectronics
SKU: TL061IDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL061IDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TL061IDT.pdf

Description:: IC OPAMP JFET 1 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:8,916

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Product details

Overview

TL061IDT from STMicroelectronics is a low-power JFET-input single operational amplifier designed for precision analog signal conditioning in space-constrained industrial and instrumentation systems. It delivers 3.5 V/µs slew rate, ±15 V input common-mode range (up to V_CC), 200 µA supply current, and 1 MHz gain-bandwidth product - enabling stable DC-coupled amplification and moderate-speed AC signal processing in battery-powered sensor front-ends.

For engineers reviewing the TL061IDT datasheet, TL061IDT pinout, TL061IDT application, or TL061IDT equivalent, key selection criteria include its JFET-input ultra-low input bias current (≤200 pA), rail-to-rail-compatible output swing (±13.5 V @ ±15 V supplies), offset null capability, and SO-8 package thermal resistance (125 °C/W junction-to-ambient) for thermally constrained PCB layouts.

Technical Context

The TL061IDT uses a monolithic JFET-bipolar hybrid process to achieve high input impedance (>10¹² Ω) and low input bias current while maintaining bipolar-like output drive strength. Its internal frequency compensation ensures unity-gain stability without external components across all supply voltages (±3 V to ±18 V).

It supports dual-supply operation only (no single-supply rail-to-rail input), features latch-up-free design, and includes output short-circuit protection with infinite duration rating under thermal limits. The offset null pins (1 and 5) allow trimming of input offset voltage down to <3 mV over temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Current	200 µA typical - enables multi-channel battery-powered designs with >1-year runtime on coin cells
Slew Rate	3.5 V/µs - supports 100 kHz full-power sine wave output at ±10 V swing
Input Bias Current	30 pA min / 200 pA max - preserves signal integrity in high-impedance pH or photodiode sensor interfaces
Common-Mode Range	±11.5 V to +15 V / –12 V - accepts inputs beyond negative rail, simplifying level-shifting in bipolar signal chains
Gain-Bandwidth Product	1 MHz - sets usable closed-loop bandwidth to ~95 kHz at gain = 10 (with phase margin >60°)
Input Resistance	10¹² Ω - minimizes loading error on passive RC filters and piezoelectric transducers
CMRR	80–86 dB - rejects 60 Hz interference in unshielded industrial wiring when used with matched source impedances

Pinout & Package

TL061IDT is supplied in an SO-8 (Small Outline) plastic micropackage with 1.27 mm pitch, 5.0 mm × 6.2 mm body, and 1.25 mm height - optimized for automated assembly and thermal dissipation in compact PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1	Offset Null 1	Connects to one end of 100 kΩ potentiometer for input offset voltage trimming
2	Inverting Input	High-impedance JFET gate node; requires guard ring routing to minimize leakage-induced drift
3	Non-inverting Input	High-impedance JFET gate node; must be referenced to stable DC potential to avoid CMR degradation
4	V_CC–	Negative supply terminal; must be decoupled with ≥100 nF ceramic capacitor near pin
5	Offset Null 2	Connects to opposite end of same 100 kΩ potentiometer as Pin 1
6	Output	Class-AB bipolar output stage capable of ±10 mA continuous drive into 10 kΩ load
7	V_CC+	Positive supply terminal; shares same decoupling requirement as Pin 4
8	No Connect	Internally unused; must remain floating - no tie to ground or supply

Key Features

Feature	Design Value
Very low power consumption	200 µA supply current enables integration into always-on sensor nodes without compromising battery life
High input impedance JFET stage	10¹² Ω input resistance prevents loading of high-Z sources like electret microphones or strain gauge bridges
Internal frequency compensation	Guarantees stable unity-gain operation without external compensation capacitors across full temperature and supply range
Output short-circuit protection	Allows indefinite shorting to either rail or ground without damage - critical for test equipment and fault-tolerant designs
Latch-up free operation	Immune to parasitic SCR triggering during overvoltage transients - improves reliability in noisy industrial environments

Applications

Industrial Sensor Signal Conditioning

Portable Instrumentation Amplifiers

Use Scenario: Amplifying low-level mV outputs from RTD, thermocouple, or bridge-based pressure sensors in factory-floor PLC I/O modules.

IC Role / Device Role / Timing Role: Primary DC-coupled gain stage with offset nulling to maintain <0.1% linearity over –40°C to +105°C.

Use Value: Ultra-low input bias current avoids voltage drop errors across high-value sensor bridge resistors, preserving measurement accuracy.

Use Scenario: Front-end amplification in handheld multimeters and portable oscilloscope probes requiring low power and high CMRR.

IC Role / Device Role / Timing Role: First-stage non-inverting amplifier with selectable gain (1–100×) and user-accessible offset trim.

Use Value: 200 µA quiescent current extends alkaline battery life to >200 hours per set, while 3.5 V/µs slew rate supports 100 kHz bandwidth measurements.

Audio Pre-amplifiers

Photodiode Transimpedance Amplifiers

Use Scenario: Low-noise microphone preamp in voice-activated edge devices where EMI immunity and low THD are required.

IC Role / Device Role / Timing Role: High-Z input buffer with 42 nV/√Hz input noise and 86 dB CMRR rejecting RF pickup on unbalanced cables.

Use Value: JFET input eliminates bias current-induced distortion in capacitor-coupled audio paths, enabling clean 20 Hz–20 kHz response.

Use Scenario: Converting nanoampere photocurrents from UV/IR photodiodes into measurable voltage signals in gas analyzers.

IC Role / Device Role / Timing Role: Transimpedance amplifier with 1 MΩ feedback resistor and active offset nulling to suppress dark-current drift.

Use Value: ≤200 pA input bias current prevents false offset buildup across feedback resistor, ensuring sub-1% gain error over 10-year field deployment.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TL071CDT	Higher slew rate (16 V/µs), lower input noise (18 nV/√Hz), but 2.8 mA supply current - 14× higher than TL061IDT	Preferred in audio and wideband applications; unsuitable for battery-powered long-life designs	Select when speed/noise outweigh power constraints; avoid if system budget is <500 µA per channel
CA3140EZ	Similar 200 µA supply current and MOSFET input, but wider supply range (±18 V), no offset null pins, and lower GBP (4.5 MHz)	Used in legacy industrial controls; lacks precision trimming capability needed for <1 mV offset requirements	Choose for cost-sensitive replacements where offset drift tolerance >5 mV is acceptable

Compared with TL071CDT and CA3140EZ, TL061IDT uniquely balances ultra-low power, offset adjustability, and robust industrial temperature range (–40°C to +105°C) - making it optimal for precision, long-duration embedded sensing where trimming and thermal stability are mandatory.

Availability

TL061IDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable test equipment, photodiode signal chains, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TL061IDT 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 discrete solutions with strong focus on energy efficiency and reliability.

The TL061 belongs to ST's legacy precision analog portfolio, engineered specifically for low-power, high-input-impedance signal conditioning in harsh industrial environments - emphasizing thermal stability, ESD robustness (1.5 kV CDM), and long-term parametric consistency.

FAQ

Can TL061IDT operate from a single 5 V supply?

No. TL061IDT is specified only for dual-supply operation (±3 V to ±18 V). Its input common-mode range does not extend to the negative rail in single-supply configurations, and the output cannot swing within 1.5 V of either rail. For 5 V single-supply use, consider rail-to-rail input/output op-amps such as TS912IDT or MCP6001T-E/OT.

What is the maximum safe output short-circuit duration for TL061IDT?

TL061IDT features infinite-duration output short-circuit protection per datasheet Table 1 - provided junction temperature remains below 150°C. At ambient 25°C with SO-8 package (R_thJA = 125 °C/W), sustained short-circuit power dissipation must stay below 500 mW to avoid thermal shutdown or damage.

How do I connect the offset null pins (1 and 5) for minimum input offset voltage?

Connect a 100 kΩ potentiometer between Pins 1 and 5, with its wiper tied to V_CC–. Adjust until output voltage is minimized with inputs shorted and grounded. This trims V_IO to <1 mV at room temperature - critical for DC-coupled precision integrators and low-gain instrumentation stages.

Is TL061IDT pin-compatible with other SO-8 op-amps like LM358 or TL081?

No. TL061IDT has unique pinout: Pin 4 = V_CC–, Pin 7 = V_CC+, Pin 8 = NC. LM358 uses Pin 4 = V_CC– and Pin 8 = V_CC+; TL081 uses identical pinout to TL061 but lacks offset null pins (Pins 1 and 5 are NC). Direct replacement requires PCB redesign or adapter.

TL061IDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: J-FET

Number of Circuits:: 1

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

Current - Output / Channel:: 20 mA

Voltage - Supply Span (Min):: 6 V

Voltage - Supply Span (Max):: 36 V

Operating Temperature:: -40°C ~ 105°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

TL061IDT FAQ

1.How can I place an order for TL061IDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TL061IDT 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 TL061IDT reliable?

The price and inventory of TL061IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL061IDT is usually 5 days.

3.What payment methods are accepted for TL061IDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL061IDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL061IDT?

TL061IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL061IDT 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 TL061IDT?

For technical support, including TL061IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL061IDT requirements.

6.How does Aetrix verify that TL061IDT is sourced from the original manufacturer or authorized distributors?

All TL061IDT 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 TL061IDT meets industry standards.

7.What is the process for return or replacement of TL061IDT?

All TL061IDT units undergo pre-shipment inspection (PSI). If there is an issue with TL061IDT, 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 TL061IDT part is unused and in its original packaging.

Return procedure for TL061IDT:

1.Submit a request within 90 days.

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

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