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 LM258WYST

Name: LM258WYST
Brand: STMicroelectronics
SKU: LM258WYST
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: LM258WYST

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: LM258WYST.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8MINISO

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,942

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

Product details

Overview

LM258WYST from STMicroelectronics is a low-power dual operational amplifier in MiniSO8 package, designed for single-supply operation from 3 V to 30 V. It delivers 100 dB DC voltage gain, 1.1 MHz unity-gain bandwidth, 2 mV input offset voltage, and rail-to-rail output swing down to 0 V - enabling precision signal conditioning in battery-powered sensor interfaces and industrial analog front-ends.

For engineers reviewing the LM258WYST datasheet, LM258WYST pinout, LM258WYST application, or LM258WYST equivalent, key selection criteria include its guaranteed -40 °C to +105 °C operating range, 20 nA input bias current (temperature compensated), ESD robustness (2 kV HBM), and compatibility with 5 V logic systems without auxiliary supplies.

Technical Context

The LM258WYST integrates two independent high-gain op-amps with internal frequency compensation, enabling stable unity-gain operation without external components. Its input common-mode range includes ground, and differential input voltage extends to full supply rails - supporting direct interfacing with transducers and microcontroller ADCs.

It features temperature-compensated input offset voltage (2 mV max) and bias current (20 nA typ), ensuring consistent DC accuracy across industrial temperature ranges. Output stage supports 0 V to (V_CC+ − 1.5 V) swing into 2 kΩ loads, with 40 mA sink/source capability and 0.6 V/µs slew rate.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3 V to 30 V - enables direct use with 5 V logic rails or 24 V industrial buses without regulation.
DC Voltage Gain	100 dB - provides ≥10⁵ open-loop gain for precise closed-loop gain setting in instrumentation amplifiers.
Unity-Gain Bandwidth	1.1 MHz - supports audio-frequency signal processing and moderate-speed sensor signal conditioning.
Input Offset Voltage	2 mV max - ensures ≤2 mV baseline error in DC-coupled amplifiers without trimming.
Input Bias Current	20 nA typ at 25 °C - minimizes voltage drop across high-impedance sensor sources (e.g., thermistors, photodiodes).
Output Voltage Swing	0 V to (V_CC+ − 1.5 V) - allows full-scale analog output near ground in single-supply systems.
ESD Protection	2 kV HBM - enhances reliability in handling and PCB assembly without additional protection circuitry.

Pinout & Package

LM258WYST is housed in a MiniSO8 (plastic micropackage) - 3.0 mm × 4.9 mm body, 0.65 mm pitch, 1.1 mm height - optimized for space-constrained industrial and automotive PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1	Output 1	Amplifier 1 output node; capable of sourcing/sinking up to 40 mA while maintaining linearity.
2	Inverting Input 1	High-impedance (20 nA bias) differential input; accepts signals down to ground in single-supply mode.
3	Non-inverting Input 1	Matches Pin 2 in impedance and offset behavior; supports DC-coupled sensor biasing networks.
4	V_CC− (GND)	Ground reference for both amplifiers; common return path for input and output currents.
5	Non-inverting Input 2	Independent second amplifier input; electrically isolated from Amp1 to prevent crosstalk (120 dB channel separation).
6	Inverting Input 2	Matched to Pin 2; enables dual-channel signal processing (e.g., differential pair + reference buffer).
7	Output 2	Second amplifier output; identical AC/DC performance to Pin 1, usable for feedback or signal routing.
8	V_CC+	Positive supply rail; powers both amplifiers; supports up to 30 V with thermal derating per R_thJA = 190 °C/W.

Key Features

Feature	Design Value
Single-supply operation	Operates from 3 V to 30 V with input common-mode range including ground - eliminates need for split supplies in portable or PLC analog modules.
Temperature-compensated inputs	20 nA input bias current and 2 mV offset voltage specified over -40 °C to +105 °C - reduces calibration drift in automotive cabin sensors.
Rail-to-rail output capability	Swings to 0 V (ground) and within 1.5 V of V_CC+ - maximizes dynamic range when driving 12-bit ADCs referenced to same supply.
Internal frequency compensation	Stable unity-gain configuration without external capacitors - simplifies layout and reduces BOM count in cost-sensitive consumer electronics.
High channel separation	120 dB isolation between amplifiers at 1–20 kHz - prevents crosstalk in dual-channel data acquisition or stereo audio preamps.

Applications

Industrial Sensor Signal Conditioning

Automotive Cabin Temperature Monitoring

Use Scenario: Amplifying low-level outputs from NTC thermistors in HVAC control units.

IC Role / Device Role / Timing Role: Dual op-amp configured as precision non-inverting amplifier (Channel 1) and reference buffer (Channel 2) for ratiometric ADC measurement.

Use Value: 20 nA input bias avoids self-heating errors in high-resistance thermistor networks; 2 mV offset ensures ±0.5 °C accuracy over -40 °C to +85 °C.

Use Scenario: Signal conditioning for analog cabin temperature sensors feeding MCU ADCs.

IC Role / Device Role / Timing Role: Single-supply dual op-amp implementing differential amplifier + low-pass filter to reject EMI from 12 V vehicle bus.

Use Value: Input common-mode range including ground enables direct connection to grounded thermistor; 2 kV HBM ESD rating withstands assembly handling and field transients.

Portable Medical Pulse Oximetry Front-End

Smart Home CO₂ Sensor Analog Interface

Use Scenario: Amplifying photodiode current from red/IR LEDs in battery-powered pulse oximeters.

IC Role / Device Role / Timing Role: Transimpedance amplifier (Channel 1) and active low-pass filter (Channel 2) for noise suppression before ADC sampling.

Use Value: 1.1 MHz GBW supports >100 Hz pulse detection bandwidth; 0.6 V/µs slew rate prevents distortion during rapid IR LED modulation transitions.

Use Scenario: Conditioning analog output from NDIR CO₂ sensor modules in smart thermostats.

IC Role / Device Role / Timing Role: Dual-channel DC-coupled amplifier: one for sensor output scaling, one for reference voltage buffering to improve ADC PSRR.

Use Value: 100 dB CMRR rejects power supply ripple on shared 3.3 V rail; 3 V minimum supply enables direct use with Li-ion battery (3.0–4.2 V) without LDO.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM2904WDT	Same SO8 package, but wider -40 °C to +125 °C grade; 700 µA supply current vs. 1.2 mA (LM258W at 30 V); 300 kHz GBW.	Lower power, higher temp grade - preferred for under-hood automotive; lower bandwidth limits audio/medium-speed sensing.	Select LM2904WDT for extended temperature or ultra-low quiescent current; LM258WYST for higher speed or MiniSO8 footprint.
TSV912IST	MiniSO8, rail-to-rail input/output, 8 MHz GBW, 1.1 V/µs slew rate; 60 µA supply current; no internal compensation (requires external capacitor).	Higher speed and rail-to-rail I/O - suitable for active filters or fast-settling circuits; requires external compensation and layout care.	Choose TSV912IST only when >1.1 MHz bandwidth or true rail-to-rail input is required; LM258WYST offers plug-and-play stability.

Compared with LM2904WDT, LM258WYST trades 400 kHz bandwidth for 1.1 MHz and adds MiniSO8 packaging; versus TSV912IST, it sacrifices rail-to-rail input and ultra-low power for guaranteed unity-gain stability and broader supply range - making it optimal for robust, medium-bandwidth industrial signal chains.

Availability

LM258WYST is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin electronics, portable medical devices, and smart home environmental monitoring requiring stable component supply across extended temperature ranges.

Supply support for LM258WYST 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, delivering silicon solutions for automotive, industrial, and consumer markets since 1987.

The LMx58W series targets cost-sensitive, high-reliability analog signal conditioning - emphasizing single-supply operation, wide temperature tolerance, and robust ESD protection for harsh-environment applications.

FAQ

Is LM258WYST pin-compatible with LM358WST?

Yes - both share identical MiniSO8 pinout (8-pin top view: Out1, In−1, In+1, GND, In+2, In−2, Out2, V_CC+). However, LM258WYST is rated for -40 °C to +105 °C, while LM358WST is limited to 0 °C to +70 °C. Electrical specs (e.g., offset voltage, GBW) are identical per datasheet Table 3, confirming functional interchangeability in commercial-grade designs.

Can LM258WYST drive a 10 kΩ load to rail in single-supply mode?

Yes - the output swings to 0 V (ground) and up to (V_CC+ − 1.5 V) into 10 kΩ loads per datasheet Figure 7 and Table 3. At V_CC+ = 5 V, this yields 0 V to 3.5 V swing; at V_CC+ = 30 V, it reaches 0 V to 28.5 V. Load current remains within 40 mA sink/source limits, ensuring linearity without clipping.

What is the maximum capacitive load LM258WYST can drive without oscillation?

Per Figure 17 (Phase Margin vs. Capacitive Load), LM258WYST maintains ≥45° phase margin 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 op-amp output and capacitance is recommended to preserve stability in active filter or cable-driving applications.

Does LM258WYST require external compensation components?

No - it features internal frequency compensation optimized for unity-gain stability, as confirmed in the "Features" section and schematic diagram (Figure 1). No external capacitors or resistors are needed for stable operation in standard inverting/non-inverting configurations, reducing design complexity and PCB area in cost-driven applications.

LM258WYST Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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:: 5 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-MiniSO

LM258WYST FAQ

1.How can I place an order for LM258WYST through Aetrix?

Please submit a Request for Quotation (RFQ) for LM258WYST 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 LM258WYST reliable?

The price and inventory of LM258WYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258WYST is usually 5 days.

3.What payment methods are accepted for LM258WYST?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258WYST transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM258WYST?

LM258WYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM258WYST 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 LM258WYST?

For technical support, including LM258WYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258WYST requirements.

6.How does Aetrix verify that LM258WYST is sourced from the original manufacturer or authorized distributors?

All LM258WYST 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 LM258WYST meets industry standards.

7.What is the process for return or replacement of LM258WYST?

All LM258WYST units undergo pre-shipment inspection (PSI). If there is an issue with LM258WYST, 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 LM258WYST part is unused and in its original packaging.

Return procedure for LM258WYST:

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…