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STMicroelectronics LM358AWST
- Part No.:
- LM358AWST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM358AWST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:12,242
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Product details
Overview
LM358AWST from STMicroelectronics is a low-power dual operational amplifier in MiniSO8 package, designed for single-supply operation from 3 V to 30 V. It delivers 100 dB large-signal voltage gain, 1.1 MHz unity-gain bandwidth, 2 mV input offset voltage, and rail-to-rail output swing down to 0 V - enabling precision DC amplification and transducer interfacing in cost-sensitive industrial and consumer systems.
For engineers reviewing the LM358AWST datasheet, LM358AWST pinout, LM358AWST application, or LM358AWST equivalent, this device supports single-supply sensor signal conditioning, active filtering, and comparator functions with guaranteed input common-mode range including ground and output capability to sink to 0 V.
Technical Context
The LM358AWST integrates two independent high-gain op-amps with internal frequency compensation, enabling stable unity-gain operation without external components. Its PNP-input stage provides low input bias current (20 nA typ.) and input common-mode voltage range extending to ground - critical for direct coupling with grounded sensors.
It operates across 0 °C to +70 °C ambient temperature, supports supply voltages up to 30 V, and features ESD protection rated at 2 kV (HBM). The output can source up to 40 mA and sink to within 20 mV of ground under 10 kΩ load, making it suitable for driving LEDs, analog switches, and ADC reference buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - enables direct interface with 5 V logic rails and higher-voltage industrial sensors without level-shifting. |
| Large-Signal Voltage Gain | 100 dB (typ.) - ensures high-precision amplification of low-level transducer outputs with minimal error. |
| Unity-Gain Bandwidth | 1.1 MHz - supports audio-frequency filtering and moderate-speed signal conditioning up to ~100 kHz closed-loop. |
| Input Offset Voltage | 2 mV (max) - allows accurate DC-coupled amplification of millivolt-level signals (e.g., thermocouples, strain gauges). |
| Output Voltage Swing | 0 V to (VCC+ − 1.5 V) - delivers true ground-referenced output for single-supply ADC input stages and comparator thresholds. |
| Input Bias Current | 20 nA (typ.) - minimizes voltage error across high-impedance sources like photodiodes and pH electrodes. |
| ESD Protection | 2 kV HBM - enhances robustness during board handling and system integration without external protection diodes. |
Pinout & Package
LM358AWST is housed in an 8-pin MiniSO8 (plastic micropackage), measuring 2.80–3.20 mm × 4.65–5.15 mm with 0.65 mm pitch. This compact, surface-mount package supports high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output 1 | Amplifier A output - drives loads up to 40 mA source / 20 mA sink; swings to 0 V on single supply. |
| 2 | Inverting Input 1 | High-impedance node (20 nA bias) for feedback networks; accepts input down to ground. |
| 3 | Non-inverting Input 1 | DC-coupled input with common-mode range from ground to VCC−1.5 V - enables direct sensor connection. |
| 4 | VCC− (GND) | Ground reference for both amplifiers - required for single-supply operation and rail-to-rail output compliance. |
| 5 | Non-inverting Input 2 | Independent second amplifier input - supports dual-channel signal paths (e.g., differential pair, dual sensor inputs). |
| 6 | Inverting Input 2 | Second amplifier feedback node - allows separate gain configuration per channel without crosstalk. |
| 7 | Output 2 | Amplifier B output - electrically isolated from Output 1; shares same supply and ground pins. |
| 8 | VCC+ | Positive supply rail (3–30 V) - powers both amplifiers; supply current remains stable across voltage range. |
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 - eliminates need for split supplies in portable and industrial systems. |
| Low input bias current | 20 nA typical - preserves signal integrity when interfacing with high-impedance sources such as piezoelectric sensors and RC filter networks. |
| Internal frequency compensation | Unity-gain stable without external components - simplifies design of inverting/non-inverting amplifiers, active filters, and voltage followers. |
| Temperature-compensated parameters | Input offset voltage drift ≤7 µV/°C and input offset current drift ≤10 pA/°C - maintains accuracy over 0–70 °C operating range. |
| Rail-to-rail output capability | Sinks to 20 mV above ground under 10 kΩ load - enables direct interface with 0 V–reference ADCs and digital comparators. |
Applications
| Transducer Signal Conditioning | Single-Supply Sensor Interface |
|---|---|
|
Use Scenario: Amplifying low-level output from a 10 mV/V load cell in a weighing scale. IC Role / Device Role / Timing Role: Dual op-amp configured as instrumentation amplifier front-end and low-pass filter stage. Use Value: Input common-mode range includes ground allows direct connection to bridge center-tap; 2 mV offset ensures <0.2% full-scale error at 100 mV input. |
Use Scenario: Converting thermistor resistance changes into linearized voltage for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Non-inverting amplifier with fixed gain (10×) and AC-coupled buffer for noise rejection. Use Value: 1.1 MHz bandwidth supports >10 kHz anti-aliasing; 20 nA bias current prevents loading of high-resistance thermistor network. |
| Industrial Analog I/O Module | Consumer Audio Pre-amplifier |
|
Use Scenario: Providing programmable gain and offset adjustment for 4–20 mA loop receiver circuitry. IC Role / Device Role / Timing Role: Dual op-amp used for current-to-voltage conversion and subsequent level-shifting to 0–3.3 V range. Use Value: Output swing to 0 V enables full utilization of 3.3 V ADC reference; 100 dB gain supports precise calibration trimming. |
Use Scenario: Boosting microphone output (−40 dBV) to line-level (−10 dBV) in USB-C audio dongle. IC Role / Device Role / Timing Role: Inverting amplifier with 33 kΩ/3.3 kΩ feedback network and DC-blocking capacitor. Use Value: 2 kV ESD protection safeguards against user-handling discharge; low THD (0.02%) preserves audio fidelity at 1 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DT | SO8 package, same electrical specs, wider operating temperature (0–70 °C), no automotive qualification. | Preferred for cost-sensitive PCBs where MiniSO8 density is unnecessary and SO8 reflow compatibility is required. | Select when board space permits larger footprint and legacy SO8 tooling is in use. |
| TLV2372IDR | Rail-to-rail input/output, lower supply current (120 µA/amp), but reduced GBW (1.5 MHz) and higher offset (3 mV max). | Better suited for battery-powered devices needing ultra-low quiescent current and full rail compliance on both input and output. | Choose only if rail-to-rail input is mandatory and supply current <250 µA is critical - not drop-in compatible due to different pinout. |
Compared with LM358DT, LM358AWST saves board area via MiniSO8 while maintaining identical performance; versus TLV2372IDR, it trades rail-to-rail input for proven stability, lower cost, and direct pin compatibility in legacy designs.
Availability
LM358AWST is available at Aetrix Electronics and suitable for transducer signal conditioning, single-supply sensor interfaces, and industrial analog I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LM358AWST 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 innovative silicon solutions for automotive, industrial, and consumer markets since 1987.
The LM358W series belongs to ST's general-purpose analog op-amp product line, engineered for reliability, ease of use, and broad compatibility in cost-sensitive linear signal processing applications - especially where single-supply operation and ground-sensing capability are essential.
FAQ
Is LM358AWST pin-compatible with standard LM358 variants?
Yes - LM358AWST uses the industry-standard dual-op-amp pinout (SO8/MiniSO8/TSSOP8): Pin 1 = Out1, Pin 2 = In−1, Pin 3 = In+1, Pin 4 = GND, Pin 5 = In+2, Pin 6 = In−2, Pin 7 = Out2, Pin 8 = VCC+. This matches LM358DT, LM358PT, and LM358WST, enabling direct substitution in MiniSO8 footprints.
What is the maximum capacitive load LM358AWST can drive without instability?
LM358AWST remains stable with capacitive loads up to 100 pF when configured as a unity-gain follower, per Figure 17 in the datasheet. For loads exceeding 100 pF, a series resistor (≥100 Ω) between output and capacitance is recommended to maintain phase margin above 45°.
Can LM358AWST be used as a comparator?
Yes - though not optimized for speed, LM358AWST functions reliably as a slow comparator (response time ~1 µs) when operated open-loop. Its input common-mode range includes ground and output swings to 0 V, supporting direct interface with digital logic thresholds. Avoid sustained saturation to minimize recovery delay.
Does LM358AWST require external compensation components?
No - LM358AWST features internal frequency compensation, making it unity-gain stable without external capacitors or resistors. This simplifies design of inverting/non-inverting amplifiers, active filters, and voltage followers across its full 3–30 V supply range.
LM358AWST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
LM358AWST FAQ
1.How can I place an order for LM358AWST through Aetrix?
Please submit a Request for Quotation (RFQ) for LM358AWST 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 LM358AWST reliable?
The price and inventory of LM358AWST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM358AWST is usually 5 days.
3.What payment methods are accepted for LM358AWST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM358AWST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM358AWST?
LM358AWST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM358AWST 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 LM358AWST?
For technical support, including LM358AWST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM358AWST requirements.
6.How does Aetrix verify that LM358AWST is sourced from the original manufacturer or authorized distributors?
All LM358AWST 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 LM358AWST meets industry standards.
7.What is the process for return or replacement of LM358AWST?
All LM358AWST units undergo pre-shipment inspection (PSI). If there is an issue with LM358AWST, 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 LM358AWST part is unused and in its original packaging.
Return procedure for LM358AWST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM358AWST Tags
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LM358DT
STMicroelectronics
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