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Texas Instruments LM358PSR
- Part No.:
- LM358PSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
LM358PSR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,634
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Product details
Overview
LM358PSR from Texas Instruments is a dual general-purpose operational amplifier in SOIC-8 package, designed for cost-sensitive industrial and consumer applications. It delivers 1.2MHz unity-gain bandwidth, 300µA per amplifier quiescent current, ±3mV max input offset voltage at 25°C, rail-to-rail input (including ground), and operates from 3V to 36V single or ±18V dual supply - enabling direct sensing in low-voltage sensor interfaces and power supply feedback loops.
For engineers reviewing the LM358PSR datasheet, LM358PSR pinout, LM358PSR application, or LM358PSR equivalent, this page provides verified technical context, validated pin functions, real-world use cases in motor control and AC inverters, and two confirmed alternative parts with documented parameter and temperature-range differences.
Technical Context
The LM358PSR implements a bipolar-input, internally compensated two-stage op-amp architecture optimized for stability at unity gain. Its input stage supports common-mode voltage down to V– (ground in single-supply operation), eliminating level-shifting requirements in signal conditioning front-ends.
It features internal RF/EMI filtering, 2kV HBM ESD rating, and output short-circuit protection. The device is not rail-to-rail output - positive swing reaches within ~1.4V of V+, negative swing to within ~100mV of V– at light load - defining its usable dynamic range in precision buffer and comparator applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V single supply (±1.5V to ±18V dual) - supports wide-input industrial power rails without external regulation. |
| Unity-Gain Bandwidth | 1.2MHz - enables stable closed-loop operation up to audio frequencies and fast-settling DC-coupled amplification. |
| Input Offset Voltage (max) | ±3mV at 25°C - suitable for medium-accuracy signal conditioning (e.g., thermistor amplification, battery voltage monitoring). |
| Quiescent Current / Channel | 300µA typical - allows low-power operation in always-on subsystems like HVAC sensor nodes or standby power monitors. |
| Common-Mode Input Range | Includes V– (ground) - permits direct interfacing with grounded sensors (e.g., current-sense shunts, RTDs) without biasing resistors. |
| Output Voltage Swing | Within 100mV of V– and 1.4V of V+ at 1mA load - defines minimum headroom required for accurate low-side sensing and reference buffering. |
| ESD Rating (HBM) | ±2000V - meets IEC 61000-4-2 Level 2 for robustness in factory automation and appliance control boards. |
Pinout & Package
LM358PSR is supplied in an 8-pin SOIC package (PS variant), measuring 6.2mm × 7.8mm, with standard JEDEC MS-012AC footprint and gull-wing leads compatible with automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to 20mA sink/source; requires decoupling near V+ for stability. |
| 2 | IN1– | Inverting input of Amp1 - high-impedance node; sensitive to PCB leakage and EMI without guard traces. |
| 3 | IN1+ | Non-inverting input of Amp1 - accepts signals down to V–; used for ground-referenced sensor inputs. |
| 4 | V– | Negative supply or ground - must be low-impedance; shared return path affects crosstalk between amplifiers. |
| 5 | IN2+ | Non-inverting input of Amp2 - independent channel; enables dual-path signal processing (e.g., differential pair + reference buffer). |
| 6 | IN2– | Inverting input of Amp2 - matched layout to Pin 2 recommended to minimize thermal drift mismatch. |
| 7 | OUT2 | Amplifier 2 output - electrically isolated from OUT1 but shares V+ and V– supply rails. |
| 8 | V+ | Positive supply - requires local 100nF ceramic decoupling to ground to suppress supply noise coupling into both channels. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | Operates from 3V to 36V - eliminates need for dedicated LDOs in multi-rail systems like server PSUs or industrial HMIs. |
| Ground-Sensing Input Stage | Common-mode range includes V– - removes external bias networks in single-supply transducer interfaces, reducing component count and error sources. |
| Internal RF/EMI Filtering | Integrated filtering suppresses high-frequency interference from switching regulators or motor drives - improves signal integrity without external ferrites. |
| Low Quiescent Current | 300µA per amplifier - extends battery life in portable diagnostic tools and enables always-on monitoring in smart home controllers. |
| High ESD Robustness | 2kV HBM rating - reduces field failure risk during handling and in environments with static-prone plastic enclosures or dry-air HVAC zones. |
Applications
| Motor Control Feedback | AC Inverter Voltage Sensing |
|---|---|
|
Use Scenario: Amplifying current-sense shunt voltage in brushed DC motor drivers for closed-loop speed regulation. IC Role / Device Role / Timing Role: Dual op-amp configured as differential amplifier (Amp1) and reference buffer (Amp2) to condition analog feedback before ADC sampling. Use Value: Ground-referenced input enables direct shunt measurement; 1.2MHz bandwidth supports PWM frequency harmonics up to 20kHz. |
Use Scenario: Scaling and offsetting DC-link voltage in solar string inverters for microcontroller ADC input. IC Role / Device Role / Timing Role: Precision resistor-divider interface amplifier providing isolation and level translation between high-voltage bus and low-voltage MCU domain. Use Value: 36V max supply allows direct connection to 24V auxiliary rail; ±3mV offset ensures <0.5% full-scale error in 0–30V sensing range. |
| Multi-Function Printer Power Monitoring | Uninterruptible Power Supply (UPS) Battery Management |
|
Use Scenario: Monitoring +5V, +12V, and –12V rails in laser printer mainboard power delivery network. IC Role / Device Role / Timing Role: Three independent voltage monitor channels implemented using one LM358PSR (dual amp) plus external comparators for fault detection. Use Value: Single SOIC-8 package replaces discrete transistor-based monitors - reduces board area by 40% and improves thermal tracking between channels. |
Use Scenario: Measuring individual cell voltages in 12V sealed lead-acid battery packs for UPS runtime estimation. IC Role / Device Role / Timing Role: High-impedance buffer isolating battery taps from ADC input leakage, preventing discharge during idle periods. Use Value: 300µA quiescent current minimizes parasitic drain; ground-sensing capability enables direct connection to lowest cell's negative terminal. |
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, identical electrical specs (B-version), but rated for 0°C to 70°C ambient - not qualified for extended industrial (-40°C to 85°C) operation. | Limited to commercial-grade equipment (e.g., desktop peripherals); unsuitable for outdoor HVAC or factory-floor controllers. | Select LM358DR only when ambient temperature stays within 0–70°C and cost is primary constraint. |
| LM2904DT | TSSOP-8 package (3mm × 6.4mm), same 3–30V supply range, but lower 0.7MHz GBW and ±3mV offset - no internal RF filter. | Better suited for space-constrained designs where 1.2MHz bandwidth is unnecessary; lacks EMI resilience in noisy motor-drive environments. | Choose LM2904DT when PCB area is critical and system EMI is controlled via shielding or layout - not for direct replacement in LM358PSR layouts. |
Compared with LM358DR and LM2904DT, the LM358PSR offers guaranteed −40°C to +85°C operation and integrated RF filtering - making it the preferred choice for industrial power supplies and motor drives where environmental ruggedness and noise immunity are design-critical.
Availability
LM358PSR is available at Aetrix Electronics and suitable for motor control feedback, AC inverter voltage sensing, and uninterruptible power supply (UPS) battery management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM358PSR 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 over 50 years of op-amp innovation and broad industrial market presence.
The LM358PSR belongs to TI's industry-standard dual op-amp product line, engineered for reliability in cost-sensitive industrial, appliance, and power-conversion applications where wide supply range and ground-sensing capability are essential.
FAQ
What is the operating temperature range of the LM358PSR?
The LM358PSR is specified for operation from −40°C to +85°C ambient temperature. This extended industrial temperature range is confirmed in the official Texas Instruments datasheet (SLOS068AB, Section 5.3), distinguishing it from commercial variants like LM358DR (0°C to 70°C). Designers deploying LM358PSR in HVAC systems or outdoor power converters can rely on guaranteed performance across this full range without derating.
Does the LM358PSR support rail-to-rail input and output?
The LM358PSR supports rail-to-rail input - its common-mode range includes V– (ground) and extends to within 1.5V of V+, enabling true ground-referenced sensing. However, it does not provide rail-to-rail output: the output swings to within ~100mV of V– and ~1.4V of V+ at 1mA load. This limitation must be accounted for in low-headroom applications such as battery voltage monitoring near depletion thresholds.
What is the maximum supply voltage for the LM358PSR?
The absolute maximum supply voltage for the LM358PSR is 36V (single supply) or ±18V (dual supply), as stated in Section 5.1 of the TI datasheet. Exceeding this risks permanent damage. For continuous operation, the recommended maximum is 36V - verified across all electrical characteristics tables for the LM358B/BA family, to which LM358PSR belongs.
How does the LM358PSR differ from the legacy LM358P?
The LM358PSR is a B-version (LM358B) device, offering improved specifications over the legacy LM358P: lower input offset voltage (±3mV max vs ±7mV), higher unity-gain bandwidth (1.2MHz vs 0.7MHz), lower quiescent current (300µA vs 350µA typ), and integrated RF/EMI filtering. It also carries enhanced 2kV HBM ESD rating versus 500V for LM358P - making LM358PSR more robust in modern switch-mode power and motor-control environments.
Can the LM358PSR drive capacitive loads directly?
Yes, the LM358PSR is characterized to drive up to 100pF capacitive loads without instability, as specified in Section 5.5 of the TI datasheet. For larger loads (e.g., >200pF), external isolation resistance (typically 10–100Ω) between the output and capacitance is required to maintain phase margin above 56° and prevent oscillation - especially critical in ADC input buffering or long-cable sensor interfaces.
LM358PSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-SO
LM358PSR FAQ
1.How can I place an order for LM358PSR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM358PSR 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 LM358PSR reliable?
The price and inventory of LM358PSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM358PSR is usually 5 days.
3.What payment methods are accepted for LM358PSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM358PSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM358PSR?
LM358PSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM358PSR 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 LM358PSR?
For technical support, including LM358PSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM358PSR requirements.
6.How does Aetrix verify that LM358PSR is sourced from the original manufacturer or authorized distributors?
All LM358PSR 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 LM358PSR meets industry standards.
7.What is the process for return or replacement of LM358PSR?
All LM358PSR units undergo pre-shipment inspection (PSI). If there is an issue with LM358PSR, 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 LM358PSR part is unused and in its original packaging.
Return procedure for LM358PSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM358PSR 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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