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

STMicroelectronics LM258PT

Name: LM258PT
Brand: STMicroelectronics
SKU: LM258PT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LM258PT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: LM258PT.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:8,893

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Product details

Overview

LM258PT from STMicroelectronics is a low-power dual operational amplifier designed for single-supply operation from 3 V to 30 V, featuring 1.1 MHz unity-gain bandwidth, 100 dB large-signal voltage gain, 2 mV input offset voltage (typ.), 20 nA input bias current (typ.), and rail-to-rail output swing down to 0 V. It is widely used in transducer amplification, DC gain blocks, and sensor signal conditioning in industrial control and embedded systems.

For engineers reviewing the LM258PT datasheet, LM258PT pinout, LM258PT application, or LM258PT equivalent, key selection criteria include its -40 °C to +105 °C operating temperature range, SO8 package compatibility, single-supply common-mode input range extending to ground, and verified performance at 5 V logic-compatible supply rails.

Technical Context

The LM258PT integrates two independent, internally frequency-compensated op amps with PNP input stages enabling input common-mode voltage down to the negative rail (ground). Its differential input voltage range equals the full supply voltage, supporting robust operation under mismatched input conditions.

It delivers rail-to-rail output swing capability-down to 0 V and up to (V_CC – 1.5 V)-and maintains stable 0.6 V/µs slew rate and 0.7–1.1 MHz gain-bandwidth product across 5 V to 30 V supplies, with supply current per channel remaining essentially independent of V_CC.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3 V to 30 V - supports direct interface with 5 V logic and wide industrial rails without level-shifting.
Unity-Gain Bandwidth	1.1 MHz (typ.) - enables stable AC-coupled amplification up to ~100 kHz with moderate closed-loop gain.
Input Offset Voltage	2 mV (typ.) - ensures ≤20 mV output error in unity-gain buffer configurations at room temperature.
Input Bias Current	20 nA (typ.) - allows high-impedance sensor interfacing (e.g., thermistors, photodiodes) without significant DC error.
Common-Mode Input Range	Includes ground (V_CC–) - permits direct connection of single-ended sensors referenced to system ground.
Output Voltage Swing	0 V to (V_CC – 1.5 V) - delivers full dynamic range into loads referenced to ground, critical for ADC driver stages.
Large-Signal Voltage Gain	100 dB (typ.) - provides ≥100,000× open-loop gain for precision DC amplification with <0.1% linearity error.

Pinout & Package

LM258PT is supplied in the TSSOP8 (Thin Shrink Small Outline Package, 8-lead) with 0.65 mm pitch, offering compact footprint and improved thermal resistance (R_thJA = 120 °C/W) versus SO8.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting input (Amplifier A)	Accepts feedback network connection; sets closed-loop gain polarity and magnitude with external resistors.
2	Non-inverting input (Amplifier A)	Reference point for differential input signals; must remain within common-mode range (GND to V_CC–2 V).
3	Output (Amplifier A)	Delivers amplified signal; capable of sourcing 40 mA and sinking 20 mA into resistive loads.
4	V_CC– (Ground)	Power reference node; all inputs and outputs are referenced to this pin; must be low-impedance.
5	Non-inverting input (Amplifier B)	Independent input for second channel; shares same supply and common-mode constraints as Channel A.
6	Inverting input (Amplifier B)	Supports separate feedback configuration; enables dual-channel signal processing without cross-talk.
7	Output (Amplifier B)	Second independent output; electrically isolated from Channel A except through shared supply and substrate.
8	V_CC+	Positive supply rail; accepts 3–30 V DC; internal current regulation ensures stable quiescent draw across voltage range.

Key Features

Feature	Design Value
Internally compensated	Eliminates need for external compensation capacitors, reducing BOM count and PCB area in standard gain configurations.
Rail-to-rail input common-mode range	Enables direct sensing of signals referenced to ground (e.g., current-sense shunts, thermocouples) without level-shifting circuitry.
Low supply current per channel	1.2 mA max at 25 °C and 5 V supply - supports battery-powered instrumentation with multi-day runtime.
Temperature-compensated parameters	Input offset voltage drift ≤15 µV/°C and bias current drift ≤200 pA/°C ensure stable DC accuracy over industrial temperature range.
Differential input voltage tolerance	±32 V - protects against transient overvoltage events exceeding supply rails, enhancing system robustness.

Applications

Transducer Signal Conditioning

Industrial Sensor Interface

Use Scenario: Amplifying low-level millivolt outputs from load cells, pressure sensors, or RTDs in factory automation systems.

IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end, providing gain and offset correction before ADC sampling.

Use Value: Input common-mode range including ground eliminates need for biasing resistors; 2 mV offset ensures ≤0.2% full-scale error in 10-bit systems.

Use Scenario: Isolating and scaling 4–20 mA loop signals in PLC analog input modules.

IC Role / Device Role / Timing Role: Precision current-to-voltage converter and buffer driving SAR ADC reference inputs.

Use Value: 20 nA input bias current prevents loading of high-impedance current-sense resistors; 100 dB gain supports 16-bit resolution.

DC Power Supply Monitoring

Embedded System Analog Front-End

Use Scenario: Real-time monitoring of 12 V and 5 V rail voltages in telecom power supplies using resistor dividers.

IC Role / Device Role / Timing Role: High-impedance voltage follower and comparator input stage feeding microcontroller ADC channels.

Use Value: Rail-to-rail output swing ensures full 0–3.3 V ADC range utilization; 1.1 MHz bandwidth rejects switching noise harmonics.

Use Scenario: Signal conditioning for environmental sensors (temperature, humidity) in smart building controllers.

IC Role / Device Role / Timing Role: Dual-channel active filter and gain stage preceding low-power MCU with integrated 12-bit ADC.

Use Value: 1.2 mA total supply current enables always-on sensing; TSSOP8 package fits space-constrained modules.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM358PT	0–70 °C operating range; higher input offset voltage (2–7 mV); identical pinout and electrical specs otherwise.	Restricted to commercial-grade environments (e.g., consumer electronics, non-critical test equipment).	Select when cost sensitivity outweighs extended temperature requirement and tighter DC accuracy is not needed.
LM2904DT	Automotive-qualified (AEC-Q100); wider -40 to +125 °C range; same SO8/TSSOP8 footprints; slightly higher input bias current (30 nA typ.).	Suitable for automotive body electronics, ADAS sensor interfaces, and harsh-environment industrial controls.	Choose for automotive programs or where extended high-temperature reliability is mandatory.

Compared with LM358PT and LM2904DT, the LM258PT uniquely balances industrial temperature range (-40 to +105 °C), tight 2 mV offset, and TSSOP8 packaging-making it optimal for space-constrained industrial controllers requiring guaranteed performance beyond commercial grade but below automotive qualification cost.

Availability

LM258PT is available at Aetrix Electronics and suitable for industrial sensor interfaces, embedded analog front-ends, and DC power monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LM258PT 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 innovative solutions across automotive, industrial, power, and IoT markets with strong manufacturing and R&D infrastructure.

The LM258 series belongs to ST's legacy precision analog portfolio, engineered specifically for cost-sensitive, single-supply industrial and embedded applications where reliability, wide supply range, and ground-sensing capability are essential.

FAQ

What is the maximum operating junction temperature for LM258PT?

The absolute maximum junction temperature is 150 °C, with thermal resistance junction-to-ambient (R_thJA) rated at 120 °C/W for the TSSOP8 package. Derating is required above 70 °C ambient; continuous operation at full 30 V supply should maintain board-level thermal design to limit T_j below 125 °C for long-term reliability.

Can LM258PT drive a 10 kΩ load to rail in single-supply mode?

Yes: with V_CC = 5 V, LM258PT delivers low-level output voltage (V_OL) ≤20 mV into 10 kΩ to ground, and high-level output (V_OH) ≥3.5 V. This achieves >95% of full-scale swing, enabling direct interfacing with 3.3 V logic and successive-approximation ADCs without external level-shifting.

Does LM258PT support dual-supply operation?

Yes: the device supports split supplies up to ±16 V (total 32 V), with input common-mode range extending from V_CC– to (V_CC+ – 1.5 V). However, its internal architecture and characterization emphasize single-supply use; dual-supply designs must verify phase reversal immunity and output swing symmetry per application circuit.

Is there a lead-free and RoHS-compliant version of LM258PT?

Yes: LM258PT is manufactured in ST's ECOPACK®2-compliant TSSOP8 package, fully RoHS-compliant and halogen-free per IEC 61249-2-21. The "PT" suffix denotes tape-and-reel packaging with lead-free terminations and conforms to JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life at ≤30 °C/60% RH.

LM258PT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm 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:: 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-TSSOP

LM258PT FAQ

1.How can I place an order for LM258PT through Aetrix?

Please submit a Request for Quotation (RFQ) for LM258PT 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 LM258PT reliable?

The price and inventory of LM258PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258PT is usually 5 days.

3.What payment methods are accepted for LM258PT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258PT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM258PT?

LM258PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM258PT 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 LM258PT?

For technical support, including LM258PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258PT requirements.

6.How does Aetrix verify that LM258PT is sourced from the original manufacturer or authorized distributors?

All LM258PT 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 LM258PT meets industry standards.

7.What is the process for return or replacement of LM258PT?

All LM258PT units undergo pre-shipment inspection (PSI). If there is an issue with LM258PT, 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 LM258PT part is unused and in its original packaging.

Return procedure for LM258PT:

1.Submit a request within 90 days.

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

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