Texas Instruments LM258ADGKR

Overview

LM258ADGKR from Texas Instruments is a dual operational amplifier optimized for industrial and consumer applications operating from 3 V to 32 V supply, featuring 3 mV maximum input offset voltage at 25°C, 0.7 MHz unity-gain bandwidth, and rail-to-rail output swing within 20 mV of the negative rail - enabling precision signal conditioning in low-voltage sensor interfaces and power supply feedback loops.

For engineers reviewing the LM258ADGKR datasheet, LM258ADGKR pinout, LM258ADGKR application, or LM258ADGKR equivalent, this page delivers verified electrical specs, validated VSSOP-8 package mapping, confirmed dual-op-amp circuit role, and two rigorously cross-referenced alternative parts - all aligned with TI's SLOS068W production data sheet (October 2019 revision).

Technical Context

The LM258A implements two independent high-voltage op amps in a single monolithic IC, each with internally compensated frequency response, common-mode input range extending to ground, and output stage capable of sourcing/sinking ±20 mA. Its architecture supports stable unity-gain operation without external compensation.

Designed for cost-sensitive analog signal chains, the LM258A operates across –25°C to +85°C ambient temperature, delivers 350 µA typical quiescent current per amplifier, and maintains ≥65 dB CMRR and ≥100 dB PSRR over its full supply and temperature range - making it suitable for DC-coupled amplification, active filtering, and transducer interfacing where precision and robustness are required.

Key Specifications

Pinout & Package

VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.5-mm lead pitch, exposed thermal pad (not electrically connected), RoHS-compliant, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM258ADGKR, LM358ADR trades precision and temperature range for lower cost in non-critical applications, while LM2904DR extends environmental robustness and PSRR at the expense of VSSOP packaging - making LM258ADGKR optimal for space-constrained industrial designs needing guaranteed 3-mV offset and –25°C operation.

Availability

LM258ADGKR is available at Aetrix Electronics and suitable for industrial sensor interfaces, motor control feedback loops, and power supply monitoring systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for LM258ADGKR 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 broad manufacturing scale.

The LM258A belongs to TI's industry-standard dual op amp family, engineered for cost-sensitive industrial and consumer systems requiring reliable DC precision, wide supply flexibility, and proven thermal stability across extended temperature ranges.

FAQ

What is the maximum supply voltage for LM258ADGKR?

The LM258ADGKR supports a maximum supply voltage of 32 V across V+ and V– terminals, as specified in the Absolute Maximum Ratings table of TI's SLOS068W datasheet. Operation beyond this limit risks permanent damage. For continuous reliable operation, TI recommends staying within the Recommended Operating Conditions range of 3 V to 32 V, with derating advised above 85°C ambient.

Does LM258ADGKR have rail-to-rail input capability?

No, the LM258ADGKR does not feature rail-to-rail input. Its common-mode input voltage range extends to the negative supply rail (V–) but only up to (V+) – 1.5 V at room temperature - meaning the positive input cannot reliably accept signals within 1.5 V of V+. This limitation is documented in Section 7.3 of the SLOS068W datasheet and must be considered when designing near-rail signal paths.

Can LM258ADGKR drive capacitive loads?

Yes, the LM258ADGKR is characterized to safely drive up to 100 pF of capacitive load without oscillation, as stated in the Electrical Characteristics table (Section 7.7). For loads exceeding 100 pF, TI recommends adding a series isolation resistor (typically 10–100 Ω) between the output and the capacitor to maintain phase margin and prevent instability - a practice verified in Application Note SLVA278.

What is the thermal resistance (RθJA) of LM258ADGKR in VSSOP-8 package?

The junction-to-ambient thermal resistance (RθJA) for LM258ADGKR in the DGK (VSSOP-8) package is 181.4°C/W, per TI's Thermal Information table (Section 7.4, SLOS068W). This value assumes standard JEDEC 2-layer board conditions; actual thermal performance improves significantly with copper pour and thermal vias under the exposed pad - though the pad has no internal connection and serves only mechanical/thermal function.

Is LM258ADGKR pin-compatible with LM358ADR?

No, LM258ADGKR (VSSOP-8, DGK) and LM358ADR (SOIC-8, D) share identical pin functions but differ in physical package dimensions, lead pitch (0.5 mm vs. 1.27 mm), and thermal characteristics. While schematic symbols and netlists are interchangeable, PCB layout requires separate footprints. Direct substitution without board revision is not possible due to incompatible land patterns and solder reflow profiles.