Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

STMicroelectronics LM258AYDT

Name: LM258AYDT
Brand: STMicroelectronics
SKU: LM258AYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: LM258AYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: LM258AYDT.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,608

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

LM258AYDT from STMicroelectronics is an automotive-grade, low-power dual operational amplifier in SO8 package, featuring 1.1 MHz unity-gain bandwidth, 100 dB large-signal voltage gain, and rail-to-rail output swing (0 V to V_CC − 1.5 V). It operates from a single 3–30 V supply, supports input common-mode range down to ground, and is qualified per AEC-Q100 for engine control units, body electronics, and ADAS sensor signal conditioning.

For engineers reviewing the LM258AYDT datasheet, LM258AYDT pinout, LM258AYDT application, or LM258AYDT equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in automotive analog front-ends, and validated alternative parts with documented functional trade-offs.

Technical Context

The LM258AYDT integrates two independent, internally frequency-compensated op amps optimized for single-supply operation. Its PNP-input stage enables input common-mode voltage down to the negative rail (ground), while its Class AB output stage delivers ±40 mA source/sink capability and 0.6 V/µs slew rate at 15 V supply.

It exhibits temperature-compensated parameters: 2 mV max input offset voltage (25 °C), 20 nA typical input bias current, and 70–85 dB common-mode rejection ratio. The device maintains stable operation across −40 °C to +105 °C ambient, with thermal resistance R_thJA = 125 °C/W in SO8 package.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3 V to 30 V - Enables direct interface with 5 V logic rails and 12/24 V automotive systems without level-shifting.
Unity-Gain Bandwidth	1.1 MHz - Supports audio pre-amplification, sensor signal filtering, and DC-coupled instrumentation up to ~100 kHz closed-loop.
Input Offset Voltage	2 mV max (25 °C) - Ensures ≤20 mV error in 10× gain transducer amplifiers without trimming.
Output Voltage Swing	0 V to (V_CC − 1.5 V) - Delivers full dynamic range into ADCs referenced to ground, e.g., 0–3.5 V out at 5 V supply.
Input Bias Current	20 nA typ. - Allows high-impedance sensor interfaces (e.g., thermistors, pH electrodes) with <0.1% current-induced error.
Common-Mode Input Range	Ground to (V_CC − 2 V) - Permits direct sensing of 0–5 V battery voltage or PWM duty-cycle signals without external biasing.
Quiescent Current	1.2 mA max (all channels, 25 °C) - Enables always-on monitoring circuits in low-power vehicle modules.

Pinout & Package

LM258AYDT is supplied in SO8 (Small Outline 8-pin) package per ECOPACK® standards, with standard 1.27 mm pitch, 4.9 mm × 6.0 mm body, and exposed pad not present (non-DFN variant).

Pin/Terminal	Circuit Role	Design Meaning
1	Output A	Amplifier A output - Sinks up to 50 mA; swings to ground when loaded with ≥10 kΩ.
2	Inverting Input A	High-impedance node (20 nA bias) - Requires matched trace impedance in differential configurations to minimize offset drift.
3	Non-inverting Input A	DC-coupled input - Accepts signals from 0 V to V_CC − 2 V; no external clamping needed for ground-referenced sensors.
4	V_EE / GND	Negative supply terminal - Must be connected directly to system ground plane; shared return for both amplifiers.
5	Non-inverting Input B	Independent channel input - Enables dual-path signal processing (e.g., active filter + buffer) without crosstalk.
6	Inverting Input B	Second amplifier inverting node - Used for summing, difference, or feedback configuration; same bias specs as Pin 2.
7	Output B	Amplifier B output - Electrically isolated from Output A; supports separate load driving or cascaded gain stages.
8	V_CC	Positive supply rail - Decoupling capacitor (100 nF ceramic) required within 5 mm for stability at >100 kHz.

Key Features

Feature	Design Value
Internal frequency compensation	Enables stable unity-gain operation without external compensation components - reduces BOM count and layout sensitivity.
Rail-to-rail input common-mode range	Accepts inputs down to ground on single supply - eliminates need for input bias resistors in 0–5 V sensor interfaces.
Low input offset voltage drift	7–15 µV/°C - Maintains <100 µV total offset shift over −40 °C to +105 °C, critical for precision engine temperature measurement.
Automotive qualification	AEC-Q100 Grade 2 (−40 °C to +105 °C) - Validated for under-hood applications including transmission control and HVAC actuators.
ESD robustness	300 V HBM - Withstands handling and assembly stress in automotive manufacturing environments without protection diodes.

Applications

Engine Coolant Temperature Sensing

Body Control Module Window Motor Driver

Use Scenario: Amplifying output of NTC thermistor in coolant circuit, converting resistance change to linear 0.5–4.5 V signal for MCU ADC.

IC Role / Device Role / Timing Role: DC-coupled non-inverting amplifier (gain = 10) with reference bias; provides stable gain over full automotive temperature range.

Use Value: 2 mV offset ensures ≤20 mV absolute error at 10× gain; rail-to-rail output fully utilizes 5 V ADC reference without clipping.

Use Scenario: Conditioning Hall-effect position feedback from window lift motor to detect stall or obstruction.

IC Role / Device Role / Timing Role: Low-noise differential amplifier rejecting common-mode noise from 12 V motor commutation spikes.

Use Value: 85 dB CMRR suppresses >99% of 12 V supply ripple; 1.1 MHz bandwidth captures fast edge transitions during motor direction reversal.

ADAS Radar Power Supply Monitor

Automotive Infotainment Audio Preamp

Use Scenario: Monitoring 3.3 V LDO output feeding 77 GHz radar MMIC, triggering fault flag if voltage drops below 3.1 V.

IC Role / Device Role / Timing Role: Precision comparator (with internal hysteresis via feedback) using one op amp channel; second channel buffers reference.

Use Value: 20 nA input bias avoids loading reference divider; 100 dB gain ensures clean switching at 200 mV threshold window.

Use Scenario: Boosting line-level audio (200 mV RMS) from head unit to drive 10 kΩ input of Class D amplifier.

IC Role / Device Role / Timing Role: AC-coupled inverting amplifier (gain = 10) with DC-blocking cap; second channel filters power supply ripple.

Use Value: 0.02% THD preserves audio fidelity; 55 nV/√Hz input noise prevents audible hiss in quiet cabin environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual op amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM2904VQDR	Higher 1.2 MHz GBW, lower 700 µV max V_io, but only 0.3 V output swing above ground at 5 V supply.	Better for precision DC gain blocks; unsuitable for ground-swinging sensor outputs requiring true 0 V min.	Select when offset-critical closed-loop gain >20 is needed and output swing to ground is not required.
TSV912IDT	2.4 MHz GBW, rail-to-rail I/O, 1.1 mV max V_io, but rated only to 85 °C ambient (not AEC-Q100).	Superior for infotainment audio or dashboard displays; not qualified for powertrain or chassis control.	Choose for non-safety-critical interior electronics where speed and rail-to-rail output outweigh automotive qualification.

Compared with LM258AYDT, LM2904VQDR offers tighter DC accuracy but sacrifices ground-swing capability, while TSV912IDT delivers higher speed and full rail-to-rail operation but lacks AEC-Q100 validation-making LM258AYDT the optimal balance for cost-sensitive, temperature-robust automotive analog signal chains.

Availability

LM258AYDT is available at Aetrix Electronics and suitable for engine control units, body electronics modules, ADAS sensor interfaces, and automotive lighting drivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LM258AYDT 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 microcontrollers, power ICs, sensors, and analog components for automotive, industrial, and consumer markets.

LM258AYDT belongs to ST's legacy automotive op amp product line, engineered specifically for robust, low-cost signal conditioning in harsh-temperature vehicle subsystems where reliability and qualification compliance are mandatory.

FAQ

Is LM258AYDT pin-compatible with LM258DT?

Yes - both share identical SO8 pinout and electrical specifications except for temperature grade and qualification. LM258AYDT is rated −40 °C to +105 °C and AEC-Q100 qualified; LM258DT is commercial grade (0 °C to 70 °C) and unqualified. No PCB redesign is needed for drop-in replacement in automotive designs.

Can LM258AYDT drive a 2 kΩ load to ground at 5 V supply?

Yes - its output can sink ≥10 mA while maintaining VOL ≤ 20 mV at 5 V supply and 25 °C, per datasheet Table 3. At −40 °C, sink current drops to ≥5 mA, still sufficient for 2 kΩ (2.5 mA required), but design margin shrinks; verify worst-case VOL in thermal simulation.

What is the maximum capacitive load LM258AYDT can drive without oscillation?

Stability is maintained up to 100 pF with proper PCB layout (short traces, local decoupling). Figure 18 shows phase margin >40° at 100 pF and 25 °C; beyond 200 pF, external compensation (e.g., series resistor at output) is required to prevent peaking or ringing in closed-loop configurations.

Does LM258AYDT require external compensation capacitors?

No - it features internal frequency compensation optimized for unity-gain stability across all operating conditions. External compensation is unnecessary for standard inverting/non-inverting configurations; only required for specialized high-speed or high-C_L applications where phase margin falls below 45°.

LM258AYDT 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:: General Purpose

Number of Circuits:: 2

Output Type:: -

Slew Rate:: 0.6V/µs

Gain Bandwidth Product:: 1.1 MHz

-3db Bandwidth:: -

Current - Input Bias:: 20 nA

Voltage - Input Offset:: 1 mV

Current - Supply:: 700µA (x2 Channels)

Current - Output / Channel:: 40 mA

Voltage - Supply Span (Min):: 3 V

Voltage - Supply Span (Max):: 30 V

Operating Temperature:: -40°C ~ 105°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

LM258AYDT FAQ

1.How can I place an order for LM258AYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for LM258AYDT 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 LM258AYDT reliable?

The price and inventory of LM258AYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258AYDT is usually 5 days.

3.What payment methods are accepted for LM258AYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258AYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM258AYDT?

LM258AYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM258AYDT 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 LM258AYDT?

For technical support, including LM258AYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258AYDT requirements.

6.How does Aetrix verify that LM258AYDT is sourced from the original manufacturer or authorized distributors?

All LM258AYDT 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 LM258AYDT meets industry standards.

7.What is the process for return or replacement of LM258AYDT?

All LM258AYDT units undergo pre-shipment inspection (PSI). If there is an issue with LM258AYDT, 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 LM258AYDT part is unused and in its original packaging.

Return procedure for LM258AYDT:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…