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STMicroelectronics LM258AWDT
- Part No.:
- LM258AWDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM258AWDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,722
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Product details
Overview
LM258AWDT from STMicroelectronics is a low-power dual operational amplifier in SO8 package, designed for single-supply operation from 3 V to 30 V, featuring 100 dB DC voltage gain, 1.1 MHz unity-gain bandwidth, 2 mV input offset voltage, and rail-to-rail output swing down to ground - enabling transducer signal conditioning and sensor interface circuits in industrial control and automotive subsystems.
For engineers reviewing the LM258AWDT datasheet, LM258AWDT pinout, LM258AWDT application, or LM258AWDT equivalent, this page delivers verified electrical parameters, validated SO8 pin mapping, temperature-compensated performance data across -40 °C to +105 °C, and real-world design context for single-supply op-amp selection in embedded analog front-ends.
Technical Context
The LM258AWDT integrates two independent high-gain op-amps with internal frequency compensation, enabling stable unity-gain operation without external components. Its input stage uses PNP transistors to support common-mode voltage down to ground and differential input range equal to full supply voltage.
Output stage delivers large voltage swing (0 V to VCC – 1.5 V) and ±40 mA short-circuit current capability, while supply current remains constant at 0.7–1.2 mA over 5–30 V supply range - critical for battery-powered and energy-constrained systems requiring predictable power draw.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - supports direct integration with 5 V logic rails and higher-voltage industrial sensors without level-shifting. |
| DC Voltage Gain | 100 dB - ensures high-precision amplification of low-level signals (e.g., thermocouple outputs) with minimal error propagation. |
| Unity-Gain Bandwidth | 1.1 MHz - enables accurate amplification of audio-band and low-speed control signals up to ~100 kHz with <1% gain error. |
| Input Offset Voltage | 2 mV max - sets baseline accuracy limit for DC-coupled applications like strain gauge bridges and current-sense amplifiers. |
| Input Bias Current | 20 nA typ. - allows use with high-impedance sources (e.g., pH electrodes, photodiodes) without significant signal loading. |
| Output Swing | 0 V to (VCC – 1.5 V) - provides near-rail output drive into loads, simplifying interfacing with ADC reference ranges and comparator thresholds. |
| ESD Protection | 2 kV HBM - enhances robustness during PCB handling and system-level ESD events in industrial environments. |
Pinout & Package
LM258AWDT is housed in an SO8 (Small Outline Integrated Circuit, 8-pin) plastic package per JEDEC MS-012, with 1.27 mm pitch, gull-wing leads, and thermal resistance RthJA = 125 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Amplifier A output - drives downstream circuitry (e.g., ADC input, LED driver) with 0 V to VCC–1.5 V swing. |
| 2 | Inverting Input 1 | Amplifier A inverting node - accepts feedback network for stable closed-loop gain configuration. |
| 3 | Non-inverting Input 1 | Amplifier A non-inverting node - connects to reference or sensor signal; supports common-mode range to ground. |
| 4 | VCC– (GND) | Power return - shared ground reference for both amplifiers and external circuitry; must be low-impedance. |
| 5 | Non-inverting Input 2 | Amplifier B non-inverting node - enables dual-channel signal processing (e.g., differential pair, active filter stages). |
| 6 | Inverting Input 2 | Amplifier B inverting node - used for summing, filtering, or precision reference buffering functions. |
| 7 | Output 2 | Amplifier B output - independently drives second load; channel separation >120 dB prevents crosstalk at audio frequencies. |
| 8 | VCC+ | Positive supply - powers both amplifiers; supply current independent of voltage magnitude simplifies LDO selection. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates from 3–30 V with input common-mode range including ground - eliminates need for split supplies in portable and automotive systems. |
| Temperature-compensated offset | 2 mV max input offset voltage with 7 µV/°C drift - maintains DC accuracy over industrial temperature range (-40 °C to +105 °C). |
| Low quiescent current | 0.7 mA per amplifier at 5 V - extends battery life in always-on sensor nodes and reduces thermal load on PCB. |
| Rail-to-ground output | Output swings to 0 V (ground) - enables direct interfacing with microcontroller ADCs referenced to same ground without level-shifting. |
| High CMRR & PSRR | 70 dB common-mode rejection and 65 dB supply rejection - suppresses noise from shared power rails and noisy sensor environments. |
Applications
| Transducer Signal Conditioning | Sensor Interface for Automotive ECUs |
|---|---|
|
Use Scenario: Amplifying millivolt-level output from pressure transducers in HVAC control panels. IC Role / Device Role / Timing Role: Dual op-amp configured as instrumentation amplifier front-end, rejecting common-mode noise from long sensor cables. Use Value: 100 dB gain and 2 mV offset enable resolution of sub-100 Pa pressure changes without calibration drift over temperature. |
Use Scenario: Converting thermistor voltage in engine coolant temperature sensing circuits. IC Role / Device Role / Timing Role: Non-inverting amplifier with fixed gain (10×), operating from vehicle's 5 V rail with guaranteed function from -40 °C to +105 °C. Use Value: Input bias current ≤20 nA avoids self-heating errors in high-resistance thermistor networks. |
| Industrial Analog Front-End | Low-Power Data Acquisition Module |
|
Use Scenario: Buffering and scaling 4–20 mA loop signals for PLC analog inputs. IC Role / Device Role / Timing Role: Dual op-amp used as current-to-voltage converter and gain stage, powered from isolated 24 V supply. Use Value: 30 V max supply rating and 1.1 MHz bandwidth support fast transient response during loop fault detection. |
Use Scenario: Signal conditioning for battery-operated environmental monitors measuring humidity and CO₂. IC Role / Device Role / Timing Role: Dual amplifier performing sensor excitation and signal amplification in ultra-low-power sleep/wake cycles. Use Value: 0.7 mA supply current at 5 V enables >1-year operation on coin-cell batteries when paired with duty-cycled MCU. |
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 |
|---|---|---|---|
| TLV2372IDR | Lower supply current (550 µA), rail-to-rail I/O, but only 5.5 V max supply and 3 V min - unsuitable for 24 V industrial use. | Optimized for 3.3 V battery systems; lacks extended temperature grade (-40 °C to +105 °C) and 30 V tolerance. | Select when ultra-low power and rail-to-rail output are mandatory, and supply is limited to ≤5.5 V. |
| LM358DT | Same architecture but commercial-grade (0 °C to +70 °C), higher input offset (3 mV max), no automotive qualification. | Approved for consumer electronics only; not rated for under-hood automotive or industrial ambient extremes. | Select only for cost-sensitive, non-temperature-critical applications where full industrial spec is unnecessary. |
Compared with TLV2372IDR and LM358DT, LM258AWDT uniquely combines extended temperature operation (-40 °C to +105 °C), 30 V supply tolerance, and 2 mV offset in a qualified SO8 package - making it the sole choice for automotive sensor modules and industrial controllers requiring long-term stability under thermal stress.
Availability
LM258AWDT is available at Aetrix Electronics and suitable for industrial automation, automotive subsystems, and battery-powered sensor nodes requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LM258AWDT 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
LM258AWDT belongs to ST's legacy precision op-amp product line, engineered specifically for robust, low-cost signal conditioning in harsh environments - emphasizing reliability, wide supply range, and guaranteed performance across industrial temperature grades.
FAQ
Is LM258AWDT pin-compatible with LM358DT?
Yes, LM258AWDT and LM358DT share identical SO8 pinout and basic electrical behavior, but LM258AWDT is rated for -40 °C to +105 °C operation and features tighter input offset voltage (2 mV vs. 3 mV max) and enhanced ESD protection (2 kV HBM). Substitution requires validation of temperature and accuracy requirements.
Can LM258AWDT drive capacitive loads directly?
LM258AWDT can drive up to 100 pF capacitive loads stably in unity-gain configuration, as confirmed by phase margin data in Figure 17 of the datasheet. For larger loads (>100 pF), a series resistor (≥100 Ω) between output and capacitance is required to maintain stability and prevent oscillation.
What is the maximum output current capability?
LM258AWDT delivers ±40 mA short-circuit output current per amplifier, with typical sink/source capability of 20–50 mA depending on output voltage and supply conditions. Continuous output current should be limited to ≤20 mA to avoid exceeding thermal limits in SO8 package at elevated ambient temperatures.
Does LM258AWDT support dual-supply operation?
Yes, LM258AWDT operates with dual supplies (e.g., ±15 V), though it is optimized for single-supply use. When using dual supplies, the input common-mode range extends from -0.3 V to VCC+ – 1.5 V, and output swing remains within 1.5 V of each rail - preserving functionality in legacy bipolar designs.
LM258AWDT 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
- 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
LM258AWDT FAQ
1.How can I place an order for LM258AWDT through Aetrix?
Please submit a Request for Quotation (RFQ) for LM258AWDT 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 LM258AWDT reliable?
The price and inventory of LM258AWDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258AWDT is usually 5 days.
3.What payment methods are accepted for LM258AWDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258AWDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM258AWDT?
LM258AWDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM258AWDT 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 LM258AWDT?
For technical support, including LM258AWDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258AWDT requirements.
6.How does Aetrix verify that LM258AWDT is sourced from the original manufacturer or authorized distributors?
All LM258AWDT 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 LM258AWDT meets industry standards.
7.What is the process for return or replacement of LM258AWDT?
All LM258AWDT units undergo pre-shipment inspection (PSI). If there is an issue with LM258AWDT, 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 LM258AWDT part is unused and in its original packaging.
Return procedure for LM258AWDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM258AWDT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
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