Texas Instruments TL034IDR

Overview

TL034IDR from Texas Instruments is a quad FET-input operational amplifier optimized for low-power, low-offset precision analog signal conditioning in industrial and power electronics systems. It delivers 1.1 MHz unity-gain bandwidth, ±15 V or ±5 V dual-supply operation, 120 μA per amplifier supply current, 1.5 mV max input offset voltage (TL034AI grade), and 10¹² Ω input resistance - enabling high-impedance sensor interfacing in solar inverter feedback loops and motor drive current sensing.

For engineers reviewing the TL034IDR datasheet, TL034IDR pinout, TL034IDR application, or TL034IDR equivalent, this device is selected for micropower FET op-amp requirements where DC accuracy, input impedance >1 TΩ, and stable AC performance up to 1.1 MHz must be maintained across –40°C to 85°C without increasing quiescent current beyond 280 μA per channel.

Technical Context

The TL034IDR implements a JFET-input stage with on-chip offset-voltage trimming, delivering improved DC performance over legacy TL06x amplifiers while maintaining identical micropower consumption. Its architecture supports rail-to-rail output swing limitations (±13 V at ±15 V supplies) and requires careful common-mode input voltage management (–11.5 V to +14 V) in single-supply configurations.

Designed for dual-supply operation, the TL034IDR exhibits 75–140 dB supply-voltage rejection and 70–94 dB common-mode rejection across temperature, with phase margin fixed at 60° for unity-gain stability. It is not characterized for single-supply biasing without external virtual-ground generation (e.g., TI TLE2426).

Key Specifications

Pinout & Package

TL034IDR is supplied in a 14-pin SOIC (D) package measuring 8.65 mm × 6.0 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL074CDR and OPA4134UA, the TL034IDR uniquely balances micropower operation (≤280 μA/ch), factory-trimmed low offset (≤1.5 mV), and 1.1 MHz bandwidth - making it optimal for space-constrained, thermally limited, and battery-assisted industrial control modules where long-term DC stability is non-negotiable.

Availability

TL034IDR is available at Aetrix Electronics and suitable for solar energy inverters, motor drive control modules, and single-phase online UPS systems requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TL034IDR 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 heritage in precision op-amp design and industrial-grade reliability validation.

The TL03x family was engineered specifically for industrial power conversion and motor control applications demanding low power, low offset, and robust FET-input performance across –40°C to 85°C - directly addressing limitations of earlier TL06x amplifiers.

FAQ

What is the maximum operating temperature range for TL034IDR?

The TL034IDR is rated for operation from –40°C to +85°C, matching the I-suffix industrial temperature grade defined in the TI SLOS180D datasheet. This range is validated across all electrical parameters including input offset voltage, supply current, and common-mode rejection ratio - ensuring reliable performance in motor drive enclosures and outdoor solar inverters.

Does TL034IDR support single-supply operation?

The TL034IDR is designed for dual-supply operation and is not characterized for true single-supply use. When operated from a single rail, DC biasing of inputs to mid-supply and termination of loads to a virtual ground (e.g., using TI TLE2426) are mandatory to stay within common-mode input voltage limits (–11.5 V to +14 V referenced to VCC–).

What is the input offset voltage specification for TL034IDR?

The TL034IDR has a maximum input offset voltage of 1.5 mV at 25°C for the AI-grade variant (as confirmed in Section 5.14 of the SLOS180D datasheet). Over the full –40°C to +85°C range, the limit is 6.8 mV. This trimmed performance differentiates it from the untrimmed TL034I (9.3 mV max over temperature).

Can TL034IDR replace TL064 in existing designs?

Yes - TL034IDR is explicitly positioned as a direct upgrade for TL06x-series amplifiers, offering identical pinout, package, and supply compatibility while improving slew rate (2.9 V/μs vs. 3.5 V/μs typ), bandwidth (1.1 MHz vs. 1 MHz), and input offset (1.5 mV vs. 15 mV max). No PCB changes are required for drop-in replacement in most TL064 layouts.

What package type is used for TL034IDR?

TL034IDR uses a 14-pin SOIC (Small Outline Integrated Circuit) package designated as 'D' by Texas Instruments, with dimensions of 8.65 mm × 6.0 mm and 1.27 mm lead pitch. This is distinct from PDIP (N) and TSSOP (PW) variants - the 'DR' suffix confirms the SOIC packaging per TI's orderable part numbering convention.