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

STMicroelectronics LM258WYDT

Name: LM258WYDT
Brand: STMicroelectronics
SKU: LM258WYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LM258WYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: LM258WYDT.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:38,533

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Product details

Overview

LM258WYDT from STMicroelectronics is an automotive-grade, low-power dual operational amplifier in SO8 package, featuring 100 dB DC voltage gain, 1.1 MHz unity-gain bandwidth, 2 mV input offset voltage, 20 nA input bias current, and rail-to-rail output swing (0 V to V_CC − 1.5 V) under single-supply operation. It enables transducer signal conditioning and sensor interface circuits in engine control units and body electronics.

For engineers reviewing the LM258WYDT datasheet, LM258WYDT pinout, LM258WYDT application, or LM258WYDT equivalent, key selection criteria include its AEC-Q100 qualification, −40 °C to +105 °C operating range, 2 kV HBM ESD rating, and guaranteed input common-mode range extending to ground-critical for single-supply 5 V automotive sensor front-ends.

Technical Context

The LM258WYDT integrates two independent high-gain op-amps with internal frequency compensation, enabling stable unity-gain operation across temperature and supply voltage (3–30 V). Its PNP input stage delivers low input bias current (20 nA typ.) and input common-mode voltage range inclusive of ground.

Designed for single-supply systems, it supports rail-to-rail output swing down to 0 V and up to V_CC − 1.5 V, with differential input voltage range equal to full supply voltage. Input offset voltage drift is 7 µV/°C (typ.), and large-signal voltage gain is 25 V/mV min. over temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3 V to 30 V - supports wide automotive battery voltage variation including cold-crank (6 V) and load-dump (up to 30 V)
Input Offset Voltage	2 mV max - ensures ≤20 mV error at 10× gain in precision DC amplifiers
Unity-Gain Bandwidth	1.1 MHz (temp-compensated) - enables stable AC-coupled audio and sensor signal amplification up to ~100 kHz
Input Bias Current	20 nA typ. - minimizes voltage drop across high-impedance sensor sources (e.g., thermistors, piezoelectric elements)
Output Voltage Swing	0 V to (V_CC − 1.5 V) - allows full dynamic range utilization with 5 V logic-compatible output in microcontroller ADC interfaces
ESD Protection	2 kV HBM - meets automotive board-level ESD robustness requirements per ISO 10605
Operating Temperature	−40 °C to +105 °C - qualified for under-hood and cabin control module environments

Pinout & Package

LM258WYDT is housed in a plastic SO8 (Small Outline 8-pin) package compliant with ECOPACK® environmental standards and AEC-Q100 Grade 2 reliability requirements.

Pin/Terminal	Circuit Role	Design Meaning
1	Output 1	Amplifier 1 output; drives loads up to 40 mA sink/source; swings 0 V to V_CC − 1.5 V
2	Inverting Input 1	High-impedance node (20 nA bias); accepts signals down to ground in single-supply configurations
3	Non-inverting Input 1	Same impedance and voltage range as Pin 2; used for positive feedback or reference biasing
4	V_CC− (GND)	Ground reference for both amplifiers; must be low-impedance return path for input/output currents
5	Non-inverting Input 2	Independent second amplifier input; shares same electrical specs as Pins 2–3
6	Inverting Input 2	Second amplifier inverting node; supports dual-channel signal processing without cross-talk (120 dB channel separation)
7	Output 2	Second amplifier output; electrically isolated from Output 1; supports independent gain stages
8	V_CC+	Positive supply rail; powers both amplifiers; decoupling capacitor required within 1 cm for stability

Key Features

Feature	Design Value
Automotive qualification	AEC-Q100 Grade 2 certified - validated for continuous operation in engine bay and passenger compartment environments
Single-supply operation	Input common-mode range includes ground and output swings to ground - eliminates need for dual supplies in 5 V systems
Low power consumption	0.7 mA supply current per amplifier at 5 V - enables always-on sensor monitoring in low-power vehicle modules
Temperature-compensated bandwidth	1.1 MHz unity-gain bandwidth maintained across −40 °C to +105 °C - ensures consistent signal fidelity in thermal cycling
High channel isolation	120 dB channel separation at 1–20 kHz - prevents crosstalk between dual analog paths (e.g., pressure + temperature sensing)

Applications

Engine Coolant Temperature Sensing

Body Control Module Window Lift Interface

Use Scenario: Amplifies low-level resistance-based signal from NTC thermistor embedded in coolant passage.

IC Role / Device Role / Timing Role: DC-coupled non-inverting amplifier with 100× gain, referenced to stable 2.5 V bandgap.

Use Value: 2 mV offset ensures ≤0.2 °C measurement error at 100× gain; rail-to-rail output directly interfaces 12-bit MCU ADC with 0–5 V range.

Use Scenario: Condition and level-shift motor current sense signal for window lift anti-pinch detection.

IC Role / Device Role / Timing Role: High-Z differential amplifier measuring shunt voltage across bidirectional H-bridge.

Use Value: 20 nA input bias current avoids loading 100 kΩ bridge resistors; 1.1 MHz bandwidth captures transient stall events within 1 µs.

Passive Entry RF Receiver Signal Conditioning

LED Headlamp Current Regulation Feedback

Use Scenario: Amplifies weak 125 kHz subcarrier envelope from LF antenna coil in key fob receiver.

IC Role / Device Role / Timing Role: AC-coupled inverting amplifier with 10× gain and 100 Hz–10 kHz bandpass filtering.

Use Value: 55 nV/√Hz input noise preserves SNR of µV-level signals; 2 kV HBM protects against ESD during vehicle door handle contact.

Use Scenario: Compares sensed LED string current against PWM-modulated reference in adaptive headlamp driver.

IC Role / Device Role / Timing Role: High-speed comparator mode (open-loop) with hysteresis added via external feedback.

Use Value: 0.3 V/µs slew rate supports 10 kHz PWM switching; input common-mode range to ground enables direct shunt sensing at low-side configuration.

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, 300 µV V_OS max, same SO8 package and AEC-Q100 Grade 1 rating	Preferred for higher-precision current sensing where <1 mV offset is required	Select when tighter offset drift (<2 µV/°C) and faster response are needed; requires layout review for increased bandwidth stability
TSV912IYDT	2.4 MHz GBW, rail-to-rail input/output, 1.1 mA I_CC, TSSOP8 only	Suitable for space-constrained modules needing wider bandwidth and true RRO, but not SO8 drop-in	Choose for new designs prioritizing speed and input range; not pin-compatible with LM258WYDT due to different pinout and package

Compared with LM258WYDT, LM2904VQDR offers lower offset and higher bandwidth at Grade 1 temperature range, while TSV912IYDT provides rail-to-rail input and double the bandwidth-but neither matches LM258WYDT's SO8 footprint, 20 nA bias current, and proven thermal stability in legacy automotive platforms.

Availability

LM258WYDT is available at Aetrix Electronics and suitable for engine control units, body control modules, passive entry systems, and LED lighting control requiring stable component supply across automotive production lifecycles.

Supply support for LM258WYDT 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 silicon solutions for automotive, industrial, and consumer markets since 1987.

The LMx58W series belongs to ST's precision analog portfolio, engineered specifically for cost-sensitive, high-reliability automotive signal conditioning where single-supply operation, ground-sensing capability, and AEC-Q100 compliance are mandatory.

FAQ

Is LM258WYDT pin-compatible with standard LM258 variants like LM258DT?

Yes - LM258WYDT uses the identical SO8 pinout defined in the LM258W family datasheet: Pin 1 = Out1, Pin 2 = In−1, Pin 3 = In+1, Pin 4 = GND, Pin 5 = In+2, Pin 6 = In−2, Pin 7 = Out2, Pin 8 = V_CC. The "Y" suffix denotes AEC-Q100 qualification and extended temperature screening, not pin or functional change.

What is the maximum capacitive load the LM258WYDT can drive without instability?

Per Figure 17 in the datasheet, phase margin remains >45° with up to 100 pF capacitive load at V_CC = 15 V and V_ICM = 7.5 V. For loads >100 pF, a series resistor (≥100 Ω) between output and capacitance is recommended to maintain stability in sensor buffer or filter applications.

Does LM258WYDT support rail-to-rail input operation?

No - LM258WYDT features a PNP input stage with input common-mode range from ground to V_CC − 1.5 V. It does not support rail-to-rail input (i.e., cannot accept signals at V_CC), unlike CMOS-input op-amps. However, its ground-inclusive range is sufficient for most single-supply sensor interfaces.

Can LM258WYDT be used in comparator applications?

Yes - the datasheet explicitly validates comparator use as long as at least one input remains within the common-mode range (ground to V_CC − 1.5 V). Slew rate (0.3 V/µs) and open-loop gain (25 V/mV min.) support reliable decision-making, though dedicated comparators offer faster response and built-in hysteresis.

LM258WYDT 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:: 2 mV

Current - Supply:: 700µA

Current - Output / Channel:: 60 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

LM258WYDT FAQ

1.How can I place an order for LM258WYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for LM258WYDT 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 LM258WYDT reliable?

The price and inventory of LM258WYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258WYDT is usually 5 days.

3.What payment methods are accepted for LM258WYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258WYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM258WYDT?

LM258WYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM258WYDT 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 LM258WYDT?

For technical support, including LM258WYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258WYDT requirements.

6.How does Aetrix verify that LM258WYDT is sourced from the original manufacturer or authorized distributors?

All LM258WYDT 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 LM258WYDT meets industry standards.

7.What is the process for return or replacement of LM258WYDT?

All LM258WYDT units undergo pre-shipment inspection (PSI). If there is an issue with LM258WYDT, 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 LM258WYDT part is unused and in its original packaging.

Return procedure for LM258WYDT:

1.Submit a request within 90 days.

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

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