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STMicroelectronics LM358APT
- Part No.:
- LM358APT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM358APT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,994
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Product details
Overview
LM358APT from STMicroelectronics is a low-power dual operational amplifier designed for single-supply operation (3–30 V), featuring 100 dB large-signal voltage gain, 1.1 MHz unity-gain bandwidth, 2 mV input offset voltage, 20 nA input bias current, and rail-to-rail output swing down to 0 V - enabling transducer amplification and DC gain blocks in industrial sensor interfaces and 5 V logic-compatible analog front-ends.
For engineers reviewing the LM358APT datasheet, LM358APT pinout, LM358APT application, or LM358APT equivalent, this device supports single-supply signal conditioning where ground-referenced inputs and near-rail outputs are required - especially in cost-sensitive embedded systems with limited PCB area and thermal budget.
Technical Context
The LM358APT integrates two independent, internally frequency-compensated op amps optimized for stable unity-gain operation across temperature (−40 °C to +105 °C) and supply voltage (3–30 V). Its PNP-input stage enables input common-mode range extending to the negative rail, while the NPN output stage delivers 40 mA source/20 mA sink capability with 0 V to (VCC − 1.5 V) output swing.
It exhibits 70–85 dB common-mode rejection and 65–100 dB supply voltage rejection over full operating conditions, with 0.3–0.6 V/µs slew rate and 0.7–1.1 MHz gain-bandwidth product - confirming suitability for DC-coupled instrumentation, active filtering, and low-frequency signal buffering without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - supports direct interface with 5 V logic rails and higher-voltage industrial supplies without level-shifting. |
| Input Offset Voltage | 2 mV (typ.) - enables accurate DC amplification of millivolt-level sensor signals without nulling circuitry. |
| Large-Signal Voltage Gain | 100 dB (typ.) - ensures high closed-loop accuracy in precision gain stages (e.g., ×100 transducer amplifiers). |
| Unity-Gain Bandwidth | 1.1 MHz (typ.) - sufficient for audio-band filtering, active anti-aliasing, and slow-control loop compensation. |
| Input Bias Current | 20 nA (typ.) - minimizes voltage error across high-impedance sources like thermistors or photodiodes. |
| Output Swing | 0 V to (VCC − 1.5 V) - allows full-scale digitization by 0–5 V ADCs when powered from 5 V. |
| Quiescent Current per Channel | 0.6 mA (typ. at 5 V) - enables battery-powered operation with multi-day runtime in low-duty-cycle sensing nodes. |
Pinout & Package
TSSOP8 package: 8-pin thin shrink small outline package (3.0 mm × 4.4 mm × 1.05 mm height), surface-mount, lead-free, ECOPACK® compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output - drives loads up to 40 mA source / 20 mA sink; swing limited to 0 V to (VCC − 1.5 V). |
| 2 | Inverting Input A | High-impedance differential input node for amplifier A - accepts signals down to ground with no phase reversal. |
| 3 | Non-inverting Input A | High-impedance differential input node for amplifier A - supports rail-to-rail common-mode range including VEE. |
| 4 | VEE (GND) | Negative supply terminal - referenced to system ground in single-supply configurations; must be low-impedance. |
| 5 | Non-inverting Input B | High-impedance differential input node for amplifier B - electrically isolated from channel A; identical specs. |
| 6 | Inverting Input B | High-impedance differential input node for amplifier B - supports same input voltage range and bias behavior as pin 2. |
| 7 | Output B | Amplifier B output - independently buffered; channel separation >120 dB prevents crosstalk in dual-channel designs. |
| 8 | VCC | Positive supply terminal - accepts 3–30 V; quiescent current per channel remains stable across this range. |
Key Features
| Feature | Design Value |
|---|---|
| Internally frequency-compensated | Guarantees stable unity-gain operation without external capacitors - reduces BOM count and layout sensitivity. |
| Rail-to-rail input common-mode range | Includes VEE (ground) - enables direct connection of grounded sensors (e.g., RTDs, strain gauges) without level shifters. |
| Low input offset drift | 7–15 µV/°C - maintains DC accuracy over industrial temperature ranges without recalibration. |
| High CMRR & PSRR | ≥70 dB CMRR, ≥65 dB PSRR - rejects noise from shared power rails and common-mode interference in noisy environments. |
| Robust ESD protection | 300 V HBM - withstands handling and board assembly without additional protection circuitry. |
Applications
| Temperature Sensor Interface | Industrial 4–20 mA Transmitter |
|---|---|
|
Use Scenario: Amplifying output of a PT100 RTD bridge in factory-floor temperature monitoring systems. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier - one op amp configures as Wheatstone bridge buffer, the other as programmable gain stage. Use Value: 2 mV offset and 20 nA bias current minimize measurement error on high-resistance bridges; 0 V output swing enables direct interfacing with 12-bit SAR ADCs. |
Use Scenario: Converting 0–5 V process controller output into standardized 4–20 mA current loop for PLC communication. IC Role / Device Role / Timing Role: Precision current-source driver - one op amp forms transconductance stage, the other provides feedback sensing and error correction. Use Value: 100 dB open-loop gain ensures <0.1% current regulation accuracy; 30 V max supply accommodates 24 V loop power with headroom. |
| Audio Signal Preconditioning | DC Motor Speed Feedback |
|
Use Scenario: Low-noise amplification and high-pass filtering of microphone signals in voice-activated edge devices. IC Role / Device Role / Timing Role: Dual AC-coupled non-inverting amplifier - first stage sets gain, second implements 2nd-order active filter. Use Value: 55 nV/√Hz input noise and 1.1 MHz GBW support clean 20 kHz bandwidth; TSSOP8 footprint saves space in compact enclosures. |
Use Scenario: Conditioning tachometer pulses from brushed DC motor back-EMF in HVAC blower control. IC Role / Device Role / Timing Role: Comparator + integrator pair - one op amp shapes noisy zero-crossing edges, the other averages pulse frequency into analog speed voltage. Use Value: Input common-mode range to ground allows direct connection to motor terminals; 0.6 V/µs slew rate handles 10 kHz pulse trains without distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DT | SO8 package, 0–70 °C temp range, identical electrical specs except wider VIO (2–7 mV vs. 1–3 mV for A-grade). | Targeted at commercial-grade consumer electronics; lacks extended temperature qualification. | Select for cost-sensitive, non-industrial applications where ambient temperature stays below 70 °C. |
| LM2904PT | Automotive-qualified (AEC-Q100 Grade 2), same TSSOP8 footprint, tighter VIO (1 mV typ.), higher ESD rating (2 kV HBM). | Required for automotive body electronics, ADAS sensor modules, and safety-critical subsystems. | Select when functional safety compliance, extended lifetime reliability, or harsh-environment operation is mandatory. |
Compared with LM358DT, the LM358APT offers industrial temperature range (−40 °C to +105 °C) and tighter parametric consistency; versus LM2904PT, it trades automotive qualification for lower unit cost while retaining identical pinout and core performance.
Availability
LM358APT is available at Aetrix Electronics and suitable for industrial sensor interfaces, 4–20 mA loop transmitters, and audio signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM358APT 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, designing and manufacturing microcontrollers, power ICs, analog components, and MEMS sensors for industrial, automotive, and consumer markets.
The LM358 series belongs to ST's general-purpose analog op amp product line, engineered for robustness, ease of use, and broad compatibility in cost-sensitive, single-supply embedded systems - particularly where ground-sensing and rail-compatible operation are essential.
FAQ
Can LM358APT operate from a single 3.3 V supply?
Yes. The LM358APT is fully specified for 3 V minimum supply voltage. At 3.3 V, it maintains input common-mode range from ground to ~1.8 V and output swing from 0 V to ~1.8 V, supporting direct interfacing with 3.3 V microcontrollers and ADCs - though gain-bandwidth drops to ~0.7 MHz and output drive capability decreases proportionally.
Does LM358APT require external compensation capacitors?
No. The LM358APT features internal frequency compensation optimized for unity-gain stability across its full operating range (3–30 V, −40 °C to +105 °C). Adding external compensation may degrade phase margin and cause oscillation; the device is validated for stable operation with capacitive loads up to 290 pF.
What is the maximum capacitive load the LM358APT can drive reliably?
The LM358APT maintains stable operation with capacitive loads up to 290 pF, as verified in Figure 18 of the datasheet (phase margin >10° at 290 pF). For loads exceeding 100 pF, a series resistor (10–100 Ω) between output and load is recommended to isolate capacitance and preserve stability in high-precision applications.
How does LM358APT handle input voltages below ground?
The LM358APT input stage includes PNP transistors that forward-bias when inputs drop below ground (≤ −0.3 V), causing temporary output saturation and up to 5 mA input current. This is non-destructive and recovers automatically once input rises above −0.3 V; for sustained sub-ground operation, external clamping diodes are advised.
LM358APT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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 (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
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
LM358APT FAQ
1.How can I place an order for LM358APT through Aetrix?
Please submit a Request for Quotation (RFQ) for LM358APT 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 LM358APT reliable?
The price and inventory of LM358APT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM358APT is usually 5 days.
3.What payment methods are accepted for LM358APT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM358APT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM358APT?
LM358APT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM358APT 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 LM358APT?
For technical support, including LM358APT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM358APT requirements.
6.How does Aetrix verify that LM358APT is sourced from the original manufacturer or authorized distributors?
All LM358APT 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 LM358APT meets industry standards.
7.What is the process for return or replacement of LM358APT?
All LM358APT units undergo pre-shipment inspection (PSI). If there is an issue with LM358APT, 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 LM358APT part is unused and in its original packaging.
Return procedure for LM358APT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM358APT 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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