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Texas Instruments LM358PWRG3
- Part No.:
- LM358PWRG3
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM358PWRG3.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,960
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Product details
Overview
LM358PWRG3 from Texas Instruments is a dual general-purpose operational amplifier in TSSOP-8 package, featuring rail-to-rail input (common-mode range includes ground), 1.2MHz unity-gain bandwidth, 300µA per amplifier quiescent current, and ±3mV max input offset voltage at 25°C. It operates from 3V to 36V single or ±18V dual supply and is widely deployed in power supply feedback loops, motor control signal conditioning, and sensor amplification circuits.
For engineers reviewing the LM358PWRG3 datasheet, LM358PWRG3 pinout, LM358PWRG3 application, or LM358PWRG3 equivalent, this page delivers verified electrical specifications, validated pin functions, real-world use cases in industrial power and motor systems, and two confirmed alternative parts with documented performance trade-offs.
Technical Context
The LM358PWRG3 implements a bipolar input stage with internal EMI/RF filtering, enabling stable operation in electrically noisy environments such as AC inverters and motor drives. Its common-mode input range extends to the negative rail, supporting direct low-side current sensing without level-shifting circuitry.
It features unity-gain stable compensation, 0.5V/µs slew rate, and 70–140 V/mV open-loop gain across temperature. Output swing reaches within 1.42V of V+ and 100mV of V− at light load, making it suitable for single-supply systems where headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V single supply - supports wide-input industrial power rails without external regulation |
| Unity-Gain Bandwidth | 1.2MHz - enables stable closed-loop operation up to ~100kHz with moderate gain |
| Input Offset Voltage (max) | ±3mV at 25°C - sets DC accuracy limit in precision sensor interfaces and error amplifiers |
| Quiescent Current | 300µA per amplifier - allows battery-powered or energy-sensitive designs with dual op-amp functionality |
| Common-Mode Input Range | Includes ground (V−) - permits direct interfacing with shunt-based current sensors and single-supply transducers |
| Output Voltage Swing | Within 100mV of V− and 1.42V of V+ at 50µA - provides usable dynamic range in 5V–24V systems |
| ESD Rating (HBM) | ±2000V - meets IEC 61000-4-2 Level 2 for robustness in manufacturing and field deployment |
Pinout & Package
TSSOP-8 (PW) package: 3mm × 6.4mm body, 0.65mm pitch, surface-mount, moisture-sensitive level 1 (MSL-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Amplifier 1 output | Drives feedback network or next-stage input; capable of sourcing/sinking ±20mA |
| 2 (IN1−) | Amplifier 1 inverting input | Accepts feedback signal or inverted input path; high-impedance node (10MΩ || 0.1pF) |
| 3 (IN1+) | Amplifier 1 non-inverting input | Receives reference or sensor signal; common-mode range includes V− |
| 4 (V−) | Negative supply / ground | Reference for both amplifiers; must be low-impedance for stability and noise rejection |
| 5 (IN2+) | Amplifier 2 non-inverting input | Independent input channel; identical electrical characteristics to Pin 3 |
| 6 (IN2−) | Amplifier 2 inverting input | Supports second independent gain stage or differential configuration |
| 7 (OUT2) | Amplifier 2 output | Electrically isolated from OUT1; shares same supply rails and thermal environment |
| 8 (V+) | Positive supply | Power rail for both amplifiers; requires local 100nF ceramic decoupling to V− |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (V− inclusive) | Enables direct connection to ground-referenced sensors (e.g., shunt resistors, thermistors) without level shifters |
| Internal RF/EMI filter | Reduces susceptibility to high-frequency noise in motor drive and switching power supply environments |
| Unity-gain stable | Eliminates need for external compensation in buffer, follower, or low-gain configurations |
| High CMRR (100 dB typical) | Maintains signal integrity in presence of power rail fluctuations and shared return paths |
| Low quiescent current (300 µA/ch) | Supports always-on monitoring circuits in battery-backed or energy-harvesting applications |
Applications
| Power Supply Feedback Loop | Motor Current Sensing |
|---|---|
Use Scenario: Regulating output voltage in 12V–24V AC/DC adapters and server PSUs using optocoupler-coupled error amplification. IC Role / Device Role / Timing Role: Dual op-amp configured as error amplifier (Ch1) and overcurrent comparator (Ch2) in isolated feedback path. Use Value: Common-mode input range to ground allows direct sensing of low-side shunt voltage; 1.2MHz GBW ensures fast transient response to load steps. | Use Scenario: Measuring phase current in brushed DC or BLDC motor drivers for closed-loop speed/torque control. IC Role / Device Role / Timing Role: Amplifies mV-level shunt voltage with gain ≥20, referenced to system ground, feeding ADC or comparator. Use Value: Input offset ≤±3mV limits measurement error to <1% at 300mV full-scale; EMI filtering suppresses PWM switching noise. |
| Industrial Sensor Interface | Desktop PC Voltage Monitoring |
Use Scenario: Conditioning output from RTDs, thermistors, or bridge-based pressure sensors in HVAC controllers and PLC analog inputs. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier (dual-op-amp topology) with programmable gain and offset correction. Use Value: Rail-to-rail input accommodates unipolar sensor outputs; 300µA/ch current enables multi-channel designs within thermal budget. | Use Scenario: Monitoring +3.3V, +5V, and +12V rails on motherboard VRMs and PCIe add-in cards for fault detection and telemetry. IC Role / Device Role / Timing Role: Dual comparator/amplifier: one channel for threshold detection, second for buffered rail sampling to ADC. Use Value: Wide 3V–36V supply range covers all PC rail voltages; TSSOP-8 footprint saves board space versus SOIC-8 alternatives. |
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 | SOIC-8 package; identical electrical specs but higher thermal resistance (124.7°C/W vs 171.7°C/W) and larger footprint | Better suited for prototyping or through-hole assembly; less optimal for dense PCB layouts | Select LM358DR when manual soldering, breadboarding, or legacy SOIC compatibility is required |
| LM2904DT | Same TSSOP-8 package; wider operating temperature (–40°C to +125°C vs –40°C to +85°C); 0.7MHz GBW (vs 1.2MHz) | Preferred for automotive under-hood or industrial ambient environments above 85°C | Choose LM2904DT for extended-temp deployments where bandwidth <1MHz suffices |
Compared with LM358DR and LM2904DT, the LM358PWRG3 offers the best balance of bandwidth, compact packaging, and industrial-grade temperature range - ideal for space-constrained power and motor control boards requiring >1MHz closed-loop response.
Availability
LM358PWRG3 is available at Aetrix Electronics and suitable for merchant network power supplies, motor control modules, and desktop PC voltage monitoring systems requiring stable component supply across production lifecycles.
Supply support for LM358PWRG3 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LM358 family was designed as a cost-optimized, general-purpose dual op-amp platform for broad industrial signal conditioning - prioritizing supply flexibility, rail-compatible inputs, and robustness in real-world EMI environments.
FAQ
What is the maximum operating temperature for the LM358PWRG3?
The LM358PWRG3 is rated for operation from –40°C to +85°C ambient temperature. This specification is confirmed in Section 5.3 (Recommended Operating Conditions) of the TI LM358B/LM358BA datasheet (SLOS068AB, October 2024), where LM358B and LM358BA share identical temperature grading. The device's thermal metrics (RθJA = 171.7°C/W for TSSOP-8) support reliable operation within this range when PCB copper area and airflow meet standard guidelines.
Does the LM358PWRG3 support rail-to-rail output swing?
No, the LM358PWRG3 does not provide rail-to-rail output swing. Per Section 5.5 Electrical Characteristics, its output swings to within 100mV of V− and 1.42V of V+ at 50µA load. At 1mA load, swing degrades to 0.75V above V− and 1.48V below V+. This limitation is inherent to its bipolar output stage and must be accounted for in low-voltage or high-precision applications.
Is the LM358PWRG3 pin-compatible with the LM358DR?
Yes, the LM358PWRG3 (TSSOP-8) and LM358DR (SOIC-8) share identical pin numbering and function mapping per Figure 4-1 and Table 4-1 of the TI datasheet. Both follow the standard dual op-amp pinout: OUT1, IN1−, IN1+, V−, IN2+, IN2−, OUT2, V+. However, their packages differ mechanically and thermally - direct PCB replacement requires footprint redesign.
What is the input bias current specification for the LM358PWRG3?
The LM358PWRG3 exhibits a typical input bias current of –10nA and a maximum of –35nA at 25°C, with –50nA maximum across the full –40°C to +85°C operating range. These values are specified in Section 5.5 (Electrical Characteristics: LM358B and LM358BA) and reflect its bipolar transistor input stage - critical for designing high-impedance sensor interfaces where bias current induces offset errors.
Can the LM358PWRG3 drive capacitive loads?
Yes, the LM358PWRG3 is characterized to drive up to 100pF capacitive load while maintaining stability, as stated in Section 5.5 under "CLOAD" parameter. For loads exceeding 100pF, external isolation resistance (e.g., 10–100Ω in series with the output) is recommended to prevent peaking or oscillation - particularly important in long-trace sensor buffering or DAC output filtering applications.
LM358PWRG3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 700 kHz
- -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):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
LM358PWRG3 FAQ
1.How can I place an order for LM358PWRG3 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM358PWRG3 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 LM358PWRG3 reliable?
The price and inventory of LM358PWRG3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM358PWRG3 is usually 5 days.
3.What payment methods are accepted for LM358PWRG3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM358PWRG3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM358PWRG3?
LM358PWRG3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM358PWRG3 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 LM358PWRG3?
For technical support, including LM358PWRG3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM358PWRG3 requirements.
6.How does Aetrix verify that LM358PWRG3 is sourced from the original manufacturer or authorized distributors?
All LM358PWRG3 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 LM358PWRG3 meets industry standards.
7.What is the process for return or replacement of LM358PWRG3?
All LM358PWRG3 units undergo pre-shipment inspection (PSI). If there is an issue with LM358PWRG3, 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 LM358PWRG3 part is unused and in its original packaging.
Return procedure for LM358PWRG3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM358PWRG3 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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