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STMicroelectronics LM258WDT
- Part No.:
- LM258WDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM258WDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,937
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Product details
Overview
LM258WDT from STMicroelectronics is a low-power dual operational amplifier designed for single-supply operation across 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 0 V - enabling direct interfacing with +5 V logic systems in transducer signal conditioning and DC gain blocks.
For engineers reviewing the LM258WDT datasheet, LM258WDT pinout, LM258WDT application, or LM258WDT equivalent, key selection criteria include input common-mode range extending to ground, temperature-compensated low input bias current (20 nA), ESD protection (2 kV HBM), and SO8 packaging suitable for industrial-grade embedded analog front-ends.
Technical Context
The LM258WDT integrates two independent high-gain op-amps with internal frequency compensation, optimized for stable unity-gain operation over wide supply voltages. Its input stage uses PNP transistors enabling ground-sensing common-mode input range and low input bias current.
Output stage supports large voltage swing (0 V to VCC–1.5 V) under load, with 40 mA typical short-circuit current limit and 0.6 V/µs slew rate. Input offset voltage drift is 7 µV/°C, and channel separation exceeds 120 dB at 1–20 kHz - critical for dual-channel precision sensing without crosstalk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - enables direct use with +5 V logic rails and higher-voltage industrial sensors |
| Large-Signal Voltage Gain | 100 dB - provides >100,000× open-loop amplification for high-precision DC gain stages |
| Unity-Gain Bandwidth | 1.1 MHz - supports audio-band and low-speed control loop applications with stable response |
| Input Offset Voltage | 2 mV max - ensures ≤2 mV baseline error in sensor amplifiers without external trimming |
| Input Bias Current | 20 nA typ. - minimizes voltage drop across high-impedance source networks (e.g., thermistors) |
| Common-Mode Input Range | 0 V to VCC – 1.5 V - allows direct connection of grounded sensors without level-shifting circuitry |
| Output Voltage Swing | 0 V to VCC – 1.5 V - delivers full dynamic range into loads referenced to ground in single-supply systems |
Pinout & Package
LM258WDT is housed in an SO8 (Small Outline Integrated Circuit, 8-pin) plastic package per JEDEC MS-012, with 1.27 mm pitch, 4.9 mm width, and 6.0 mm length - compatible with standard surface-mount reflow processes and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Amplifier A output capable of sourcing/sinking ≥40 mA, swings to 0 V in single-supply mode |
| 2 | Inverting Input 1 | High-impedance node (20 nA bias) accepting differential signals down to ground reference |
| 3 | Non-inverting Input 1 | Matches Pin 2 impedance; supports AC/DC-coupled configurations with rail-to-rail common-mode range |
| 4 | VCC– (GND) | Ground reference for both amplifiers; serves as return path for input bias and output load currents |
| 5 | Non-inverting Input 2 | Independent second channel input; electrically isolated from Channel 1 with >120 dB channel separation |
| 6 | Inverting Input 2 | Second amplifier inverting node; identical electrical specs to Pin 2 for matched dual-channel design |
| 7 | Output 2 | Channel B output with same drive capability and swing limits as Pin 1 |
| 8 | VCC+ | Positive supply rail (3–30 V); powers both op-amps and defines output upper limit (VCC – 1.5 V) |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates from 3 V to 30 V with input common-mode range including ground and output swing to 0 V |
| Internal frequency compensation | Guarantees unity-gain stability without external components across full temperature and supply range |
| ESD protection | 2 kV HBM rating protects against handling damage during PCB assembly and field service |
| Low power consumption | 0.7 mA total supply current at 5 V - enables battery-powered sensor nodes with multi-year runtime |
| Temperature-compensated parameters | Input offset voltage drift ≤7 µV/°C and bias current drift ≤10 pA/°C ensure stable performance over –40°C to +105°C |
Applications
| Transducer Signal Conditioning | Industrial Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level mV outputs from pressure, temperature, or strain gauges in factory automation systems. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end, with one op-amp for gain and the other for filtering or buffering. Use Value: 2 mV max input offset and 20 nA bias current minimize zero-point drift and loading errors on high-Z sensor elements. | Use Scenario: Converting 4–20 mA current-loop signals to 0–5 V for PLC analog inputs in process control cabinets. IC Role / Device Role / Timing Role: Precision I-to-V converter and level-shifter, operating from 24 V supply with ground-referenced output. Use Value: Input common-mode range includes ground and output swing to 0 V enable direct interface with ADC references without negative rails. |
| DC Power Supply Monitoring | Audio Pre-amplification |
Use Scenario: Real-time monitoring of +12 V and +5 V rails in telecom power modules using resistor-divider feedback. IC Role / Device Role / Timing Role: Dual comparator replacement with hysteresis, configured as window detector for over/under-voltage alarms. Use Value: 100 dB gain and rail-to-rail output allow clean digital logic-level transitions without external pull-ups or level shifters. | Use Scenario: Low-noise microphone pre-amplifier stage in voice-enabled IoT edge devices powered by USB 5 V. IC Role / Device Role / Timing Role: AC-coupled non-inverting amplifier with 100× gain and 1.1 MHz bandwidth for 20 Hz–20 kHz audio band. Use Value: 55 nV/√Hz input noise and 0.02% THD preserve signal fidelity while 0.7 mA quiescent current extends battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904DT | Same SO8 package, but wider operating temp (–40°C to +125°C); 700 kHz GBP vs. 1.1 MHz | Higher temperature grade suits automotive engine control; lower bandwidth limits audio use | Select when extended temperature range is mandatory and bandwidth <1 MHz suffices |
| TLV2372IDR | Rail-to-rail input/output, 2.2 MHz GBP, 650 µA/ch supply current; SO8 package | RRIO enables true 0–5 V signal handling; higher speed supports faster control loops | Choose for designs requiring full rail-to-rail swing and >1 MHz bandwidth at cost of higher supply current |
Compared with LM258WDT, LM2904DT offers broader temperature tolerance but reduced bandwidth, while TLV2372IDR delivers rail-to-rail operation and double the gain-bandwidth at higher quiescent current - making LM258WDT optimal for cost-sensitive industrial analog front-ends needing proven 1.1 MHz stability and 2 mV offset.
Availability
LM258WDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, transducer signal conditioning, and DC power monitoring requiring stable component supply across extended temperature ranges (–40°C to +105°C).
Supply support for LM258WDT 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 LM258W series belongs to ST's general-purpose analog op-amp product line, engineered specifically for robust, low-cost dual-amplifier functions in single-supply industrial and embedded systems where reliability and ease of use are prioritized over ultra-low noise or rail-to-rail features.
FAQ
What is the maximum operating junction temperature for LM258WDT?
The absolute maximum junction temperature is 150°C, with thermal resistance junction-to-ambient (Rthja) rated at 125°C/W for the SO8 package. Derating is required above +105°C ambient; continuous operation at full load above 125°C junction temperature risks permanent parametric shift or failure.
Can LM258WDT drive a 2 kΩ load to rail in single-supply mode?
Yes - the output can swing to 0 V and up to VCC – 1.5 V into a 2 kΩ load, as confirmed by electrical characteristics tables at VCC = +5 V and +30 V. Output sink/source capability exceeds 10 mA at these extremes, supporting direct ADC interfacing without buffer stages.
Does LM258WDT require external compensation capacitors?
No - internal frequency compensation ensures unity-gain stability across all operating conditions. No external capacitor is needed for stable operation, even with capacitive loads up to 100 pF, as verified in Figure 17 (Phase margin vs. capacitive load) of the datasheet.
Is LM258WDT qualified for automotive applications?
No - LM258WDT is rated for industrial temperature range (–40°C to +105°C) and is not AEC-Q100 qualified. For automotive use, ST offers the LM258WYDT variant (SO8, AEC-Q100 Grade 2, –40°C to +105°C), which shares electrical specs but includes enhanced screening and traceability.
LM258WDT 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
LM258WDT FAQ
1.How can I place an order for LM258WDT through Aetrix?
Please submit a Request for Quotation (RFQ) for LM258WDT 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 LM258WDT reliable?
The price and inventory of LM258WDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258WDT is usually 5 days.
3.What payment methods are accepted for LM258WDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258WDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM258WDT?
LM258WDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM258WDT 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 LM258WDT?
For technical support, including LM258WDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258WDT requirements.
6.How does Aetrix verify that LM258WDT is sourced from the original manufacturer or authorized distributors?
All LM258WDT 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 LM258WDT meets industry standards.
7.What is the process for return or replacement of LM258WDT?
All LM258WDT units undergo pre-shipment inspection (PSI). If there is an issue with LM258WDT, 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 LM258WDT part is unused and in its original packaging.
Return procedure for LM258WDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM258WDT Tags
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LM358DT
STMicroelectronics
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LM358DR
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LM2904DR
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LM358ADR
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LM2904DGKR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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