Texas Instruments TL061IDRG4

Overview

TL061IDRG4 from Texas Instruments is a single-channel, low-power JFET-input operational amplifier designed for precision analog signal conditioning in cost-sensitive systems. It delivers 200 µA typical supply current, 3.5 V/µs slew rate, ±15 V supply capability, and 1 MHz unity-gain bandwidth - enabling use in battery-powered sensor interfaces and audio preamplifiers where input bias current below 200 pA and high input impedance (>10¹² Ω) are critical.

For engineers reviewing the TL061IDRG4 datasheet, TL061IDRG4 pinout, TL061IDRG4 application, or TL061IDRG4 equivalent, key selection considerations include its JFET-input stage for ultra-low input bias current, rail-to-rail common-mode input range extending to VCC+, output short-circuit protection, and SOIC-8 packaging suitable for space-constrained industrial control and consumer electronics designs.

Technical Context

The TL061IDRG4 implements a JFET-input differential pair with internal frequency compensation, delivering stable unity-gain operation without external components. Its architecture supports wide common-mode voltage range (VCC– + 4 V to VCC+ – 4 V) and operates across –40°C to 85°C ambient temperature.

It features high ESD robustness (1.5 kV HBM), integrated EMI/RF filtering, and latch-up-free operation - making it suitable for noisy environments such as white goods motor control feedback loops and tablet touchscreen controller signal chains.

Key Specifications

Pinout & Package

TL061IDRG4 is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 6.00 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. This surface-mount package supports automated assembly and provides thermal resistance of 97°C/W (junction-to-ambient).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar operational amplifier applications.

Compared with TL071CDR and LM358DR, TL061IDRG4 uniquely balances ultra-low power consumption, JFET-input performance, and SOIC-8 compatibility - making it optimal for portable, high-impedance, and thermally constrained analog signal paths where neither bipolar nor high-speed alternatives meet system-level trade-offs.

Availability

TL061IDRG4 is available at Aetrix Electronics and suitable for industrial sensor interface, audio signal conditioning, and power supply monitoring requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TL061IDRG4 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

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision op-amps and industrial-grade signal chain solutions.

The TL06x family was engineered for cost-sensitive, low-power analog applications demanding JFET-input performance - targeting white goods, personal electronics, and computing peripherals where reliability and input impedance are essential.

FAQ

What is the maximum supply voltage rating for TL061IDRG4?

The TL061IDRG4 has an absolute maximum supply voltage rating of ±18 V across VCC+ and VCC– terminals. However, its recommended operating range is ±5 V to ±15 V per the datasheet. Operating beyond ±15 V may compromise long-term reliability and is not guaranteed for parametric performance. The TL061IDRG4's internal protection circuitry does not extend to overvoltage survival - external clamping is advised in transient-prone environments.

Does TL061IDRG4 support single-supply operation?

Yes, TL061IDRG4 supports single-supply operation with appropriate biasing. Its common-mode input voltage range extends to VCC+, allowing inputs near the positive rail, but the negative input cannot go below VCC– (typically ground). For true rail-to-rail input in single-supply mode, a mid-rail reference (e.g., VCC/2) must be applied to the non-inverting input, and input signals must stay within VCC– + 4 V to VCC+ – 4 V. Output swing remains limited to ±10 V into 10 kΩ under dual supply, so single-supply headroom must be planned accordingly.

How is input offset voltage adjusted on TL061IDRG4?

The TL061IDRG4 does not include dedicated offset null pins. Unlike some legacy op-amps (e.g., LM741), it lacks internal trimming connections. Offset correction must be implemented externally - either via software calibration in ADC-based systems or through a precision external potentiometer in the feedback network. The datasheet confirms no offset null capability is provided; typical input offset voltage is 3 mV (max 6 mV) at 25°C, with drift under 10 µV/°C, making external trimming rarely necessary in most applications.

Is TL061IDRG4 pin-compatible with other TL06x variants?

TL061IDRG4 is pin-compatible only with other single-channel TL061 variants (e.g., TL061CP, TL061ACDR) in the same SOIC-8 (D) package. It is not pin-compatible with TL062 (dual) or TL064 (quad) versions, which use different pinouts and channel counts. Substituting TL061IDRG4 for TL062IDR would require PCB redesign due to differing pin functions - e.g., TL062 pin 1 is OUT, whereas TL061 pin 1 is NC. Always verify package marking and pin function tables before cross-referencing.

What thermal derating applies to TL061IDRG4 in SOIC-8 package?

TL061IDRG4 in SOIC-8 (D) package has a junction-to-ambient thermal resistance (RθJA) of 97°C/W. At 25°C ambient and ±15 V supply, its quiescent power dissipation is ~6 mW per amplifier. Derating begins above 25°C: maximum allowable ambient temperature drops by ~1°C per 10 mW increase in total power. With no additional copper area, continuous operation above 85°C ambient requires reduced supply voltage or forced airflow. TI recommends ≥1 in² of 2-oz copper pour under the package for improved thermal performance.