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Texas Instruments LM258DG4
- Part No.:
- LM258DG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM258DG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,205
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Product details
Overview
LM258DG4 from Texas Instruments is a dual operational amplifier optimized for industrial and consumer applications operating from 3 V to 32 V supply, featuring 5 mV maximum input offset voltage at 25°C, 0.7 MHz unity-gain bandwidth, and rail-to-rail output swing within 20 mV of the negative rail at 5 V supply - used in motor control feedback loops, power supply error amplifiers, and sensor signal conditioning.
For engineers reviewing the LM258DG4 datasheet, LM258DG4 pinout, LM258DG4 application, or LM258DG4 equivalent, this page delivers verified electrical specs, SOIC-8 package mapping, functional role in single-supply sensing, and validated alternative options for cost-sensitive analog signal chains requiring ground-sensing capability and stable DC performance.
Technical Context
The LM258DG4 implements two independent high-voltage op amps with common-mode input range extending to ground, enabling direct interfacing with low-side current sense resistors and thermistor networks. Its internal compensation ensures unity-gain stability without external components.
It operates across –25°C to +85°C ambient temperature, supports differential input voltages up to ±32 V, and delivers 35 V/mV minimum open-loop gain at 25°C with 350 µA typical quiescent current per amplifier - making it suitable for battery-powered instrumentation and embedded control subsystems where power efficiency and input headroom are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 32 V - supports wide-input industrial power rails and legacy 24-V systems without regulation. |
| Input Offset Voltage (max) | 5 mV at 25°C - enables accurate DC-coupled amplification of millivolt-level sensor outputs. |
| Unity-Gain Bandwidth | 0.7 MHz - sufficient for closed-loop response in motor current control and power supply compensation. |
| Quiescent Current / Amp | 350 µA typical - allows dual-amplifier operation in low-power battery-backed modules. |
| Output Swing (Negative Rail) | 5–20 mV above V– at 5 V supply - permits true ground-referenced signal acquisition in single-supply designs. |
| Common-Mode Input Range | Includes V– (ground) - eliminates need for level-shifting circuitry when measuring signals referenced to system ground. |
| Open-Loop Gain (min) | 25 V/mV - ensures stable closed-loop gain accuracy in precision buffer and comparator hysteresis circuits. |
Pinout & Package
LM258DG4 is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package with 4.90 mm × 3.90 mm body size, surface-mount compatible, and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives feedback networks or downstream ADC inputs with rail-swing capability. |
| 2 | IN1– | Inverting input - accepts feedback resistor for configured gain or connects to current-sense shunt. |
| 3 | IN1+ | Non-inverting input - interfaces directly with grounded sensors or reference voltage dividers. |
| 4 | V– | Negative supply or ground - establishes reference for single-supply operation and biasing. |
| 5 | IN2+ | Non-inverting input - independently configurable for second signal path (e.g., temperature monitoring). |
| 6 | IN2– | Inverting input - supports differential configuration or active filtering for second channel. |
| 7 | OUT2 | Amplifier 2 output - provides isolated signal processing for auxiliary functions like overvoltage detection. |
| 8 | V+ | Positive supply - accepts unregulated 24-V input or regulated 5-V/3.3-V rail depending on system architecture. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input stage | Common-mode range includes V–, enabling direct connection to low-side current shunts without level shifters. |
| Single-supply operation | Output swings within 20 mV of V– at 5 V supply, supporting true 0–5 V signal acquisition in microcontroller-based systems. |
| Internal frequency compensation | Unity-gain stable without external capacitors - reduces BOM count and layout complexity in error amplifier designs. |
| High ESD tolerance | ±500 V HBM rating - improves robustness during handling and in electrically noisy industrial environments. |
| Wide temperature range | Specified from –25°C to +85°C - suitable for non-automotive industrial enclosures and consumer appliances. |
Applications
| Motor Control Feedback | Power Supply Error Amplifier |
|---|---|
Use Scenario: Monitoring phase current in brushed DC motor drivers using low-side shunt resistors. IC Role / Device Role / Timing Role: Dual op amp configured as transimpedance amplifier (CH1) and comparator with hysteresis (CH2) for overcurrent protection. Use Value: Ground-referenced input eliminates need for isolated amplifiers; rail-swing output ensures full dynamic range into MCU ADC. |
Use Scenario: Regulating output voltage in offline AC/DC adapters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Error amplifier comparing sensed output against reference, driving optocoupler LED with compensated loop response. Use Value: 0.7 MHz GBW and internal compensation enable stable 20–50 kHz switching frequency compensation without external poles. |
| Sensor Signal Conditioning | Industrial I/O Module |
Use Scenario: Amplifying thermistor or RTD bridge outputs in HVAC temperature controllers. IC Role / Device Role / Timing Role: Instrumentation-grade buffer and gain stage before 12-bit SAR ADC sampling at 1 ksps. Use Value: 5 mV max VOS and 350 µA quiescent current support <1°C measurement accuracy and battery life >1 year in wireless nodes. |
Use Scenario: Providing analog input conditioning and isolation interface in PLC analog input cards. IC Role / Device Role / Timing Role: First-stage amplifier for 4–20 mA loop receivers and voltage-range translators (0–10 V to 0–3.3 V). Use Value: SOIC-8 footprint fits dense PCB layouts; 32 V max supply accommodates industrial 24-V bus variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DR | Same SOIC-8 package; wider temp range (0°C to 70°C vs –25°C to 85°C); 7 mV max VOS vs 5 mV. | Lower-cost option for commercial-grade products where extended temperature is not required. | Select LM358DR only if ambient operating temperature stays within 0°C–70°C and 7 mV VOS meets system accuracy budget. |
| LM2904DR | SOIC-8; automotive-grade (–40°C to 125°C); same 7 mV max VOS but higher ESD (±2 kV HBM) and integrated EMI filter. | Required for automotive body electronics or industrial equipment exposed to high EMI environments. | Choose LM2904DR when operating beyond 85°C or in electrically noisy settings - no PCB changes needed due to identical pinout. |
Compared with LM258DG4, LM358DR trades extended temperature and tighter offset for lower cost in commercial applications, while LM2904DR adds automotive qualification and EMI resilience at the expense of slightly higher VOS - both retain identical SOIC-8 footprint and basic functionality for drop-in evaluation.
Availability
LM258DG4 is available at Aetrix Electronics and suitable for motor control feedback, power supply error amplification, and sensor signal conditioning requiring stable component supply across industrial production cycles.
Supply support for LM258DG4 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of heritage in precision op amp design and broad industrial market reach.
The LM258 series belongs to TI's industry-standard dual op amp product line, engineered for cost-sensitive applications demanding ground-sensing capability, rail-swing output, and reliable performance across extended temperature ranges.
FAQ
What is the maximum operating temperature for LM258DG4?
The LM258DG4 is specified for operation from –25°C to +85°C ambient temperature. This range supports use in industrial enclosures, consumer appliances, and non-automotive embedded systems where thermal management is moderate. Exceeding +85°C may degrade offset voltage drift and open-loop gain performance beyond datasheet limits. Always verify thermal derating in final PCB layout for LM258DG4.
Does LM258DG4 support single-supply operation?
Yes, LM258DG4 supports true single-supply operation: its input common-mode range includes the negative rail (V–), and its output can swing within 20 mV of V– at 5 V supply. This allows direct interfacing with grounded sensors and compatibility with 3.3 V or 5 V microcontrollers without level-shifting circuitry - a key advantage confirmed in TI's SLOS068W datasheet for LM258DG4.
What is the unity-gain bandwidth of LM258DG4?
The LM258DG4 has a unity-gain bandwidth of 0.7 MHz, as specified in Section 7.7 of the official TI datasheet SLOS068W. This bandwidth supports stable closed-loop configurations up to ~50 kHz in power supply compensation and motor control applications, with internal compensation eliminating need for external frequency-shaping components in LM258DG4 designs.
Is LM258DG4 pin-compatible with LM358?
Yes, LM258DG4 is pin-compatible with LM358 in SOIC-8 packaging: both share identical pinout (OUT1, IN1–, IN1+, V–, IN2+, IN2–, OUT2, V+). However, LM258DG4 offers tighter input offset voltage (5 mV max vs 7 mV max) and extended temperature range (–25°C to 85°C vs 0°C to 70°C), making LM258DG4 a direct upgrade in existing LM358 layouts where those parameters matter.
What package type is LM258DG4 supplied in?
LM258DG4 is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package with nominal body dimensions of 4.90 mm × 3.90 mm. This surface-mount package is RoHS-compliant, compatible with standard reflow processes, and widely supported in PCB design libraries - confirming physical and thermal compatibility with other industry-standard dual op amps like LM358 and LM2904 in the same footprint.
LM258DG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 1.1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 500µA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM258DG4 FAQ
1.How can I place an order for LM258DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM258DG4 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 LM258DG4 reliable?
The price and inventory of LM258DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258DG4 is usually 5 days.
3.What payment methods are accepted for LM258DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM258DG4?
LM258DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM258DG4 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 LM258DG4?
For technical support, including LM258DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258DG4 requirements.
6.How does Aetrix verify that LM258DG4 is sourced from the original manufacturer or authorized distributors?
All LM258DG4 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 LM258DG4 meets industry standards.
7.What is the process for return or replacement of LM258DG4?
All LM258DG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM258DG4, 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 LM258DG4 part is unused and in its original packaging.
Return procedure for LM258DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM258DG4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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