LM358APG4 - Dual Op Amp, 8-PDIP | Texas Instruments
MPN: LM358APG4 ✓ ActiveLM358APG4 Overview
An operational amplifier, commonly called an op amp, is an analog integrated circuit that amplifies the voltage difference between its two input terminals. Its place in the analog signal-chain hierarchy is amplifier IC → operational amplifier → analog signal-conditioning IC. The LM358APG4 combines two general-purpose amplifier channels in one package, reducing component count compared with separate single-channel amplifiers where the electrical and layout requirements allow it.
The principal implementation features are its dual-circuit architecture, general-purpose classification, and 8-pin PDIP package. The DIP format remains useful in educational systems, laboratory prototypes, legacy control equipment, through-hole assembly, and repair products where socketed DIP devices or hand assembly are preferred. Because the commercial part is intended for a 0°C to 70°C ambient range, it should not be treated as an automotive or extended-temperature selection without selecting a part explicitly rated for those conditions.
The LM358 family is commonly positioned for general-purpose signal amplification, buffering, feedback networks, analog comparisons, and control-loop functions. In a practical circuit, the selected device, external resistors, and any feedback network establish gain and bandwidth, while the power-supply voltage determines the available common-mode and output-voltage range. Designers should therefore verify voltage rails, input signal range, output swing, load conditions, and stability requirements against the manufacturer datasheet for the exact ordering code.
Typical LM358APG4 applications include sensor-signal conditioning, low-frequency analog amplification, instrumentation interfaces, industrial control modules, educational electronics, and service or repair assemblies. The DIP package can simplify through-hole prototyping and socket-based replacement, although it occupies more PCB area than an equivalent surface-mount dual op amp and generally does not support automated reflow assembly.
The primary design consideration is package and temperature fit rather than channel count. Verify that the board accepts an 8-pin PDIP footprint, confirm the pin orientation, and review the manufacturer pin-description table before assigning amplifier inputs, outputs, power, and compensation connections. Avoid assuming that every generic LM358-compatible part has identical electrical limits or temperature qualification.
This product page consolidates the exact LM358APG4 package and ordering information, practical temperature considerations, pin-compatible replacement candidates, and application-oriented design guidance. It supports faster engineering comparison while keeping final component selection tied to the manufacturer datasheet and verified cross-reference information.
Drop-in alternatives for LM358APG4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LM358APG4 (same form factor and footprint) — differing in Package, Maximum Supply Voltage, Number of Amplifiers.
LM358N
✅ Drop-InContact for price
View Datasheet →LM2904P
✅ Drop-InContact for price
View Datasheet →RC4558
✅ Drop-In📋 Reference alternative (not in catalog)
SGMI8358
✅ Drop-In📋 Reference alternative (not in catalog)
TP358
✅ Drop-In📋 Reference alternative (not in catalog)
BP358
✅ Drop-In📋 Reference alternative (not in catalog)
LM358APG4 Maximum Ratings & Electrical Characteristics
| Product Type | Dual operational amplifier |
| Amplifier Channel Count | 2 circuits |
| Classification | General-purpose amplifier |
| Package | 8-pin PDIP |
| Mounting Type | Through-hole |
| Commercial Ambient Temperature | 0°C to 70°C |
LM358APG4 8-pin pdip Pin Configuration Guide
Pin configuration for LM358APG4 (8-pin pdip package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for LM358APG4.
Refer to the datasheet for full pin configuration.
Typical Applications
LM358APG4 is suitable for 6 applications: Sensor Signal Conditioning, Industrial Control Interfaces, Analog Sensor Interfaces, Power Supply Feedback and Monitoring, Educational and Laboratory Prototyping, Legacy Equipment Repair.
Sensor Signal Conditioning
The LM358APG4 is suitable for conditioning low-frequency sensor outputs in instrumentation and industrial-control boards because it provides two general-purpose amplifier channels in one 8-pin PDIP package. One channel can amplify a sensor signal while the other can provide buffering, gain, or an intermediate stage. The designer must set the gain with external resistors and confirm the exact input offset, bias-current, common-mode range, output swing, and supply limits from the manufacturer datasheet. The DIP format is especially convenient for prototypes, educational circuits, and legacy through-hole assemblies.
Recommended
Industrial Control Interfaces
LM358APG4 can be used in control interfaces that require two analog channels for amplification, error amplification, or feedback functions around a controller. Its 8-pin PDIP package supports straightforward through-hole assembly and socket-based maintenance, while the dual-channel configuration helps conserve board space compared with two separate single amplifiers. For continuous industrial deployment, keep the board within the device’s commercial ambient specification or select an ordering variant explicitly rated for the installation temperature. Verify input range, output drive, stability, and supply limits at the lowest and highest expected signal conditions.
Recommended
Analog Sensor Interfaces
The two amplifier channels in LM358APG4 can support resistive, current-based, or voltage-based sensor interfaces when the circuit operates within the device’s input and output limits. A typical implementation places one channel in a gain stage and uses the second for buffering or active filtering. External resistor and capacitor values determine the closed-loop response, so the final transfer function must be checked against the manufacturer’s bandwidth and stability guidance. The 8-pin PDIP package is well suited to laboratory and through-hole control boards where manual assembly and socket replacement are priorities.
Recommended
Power Supply Feedback and Monitoring
LM358APG4 can assist with low-bandwidth power-supply monitoring by amplifying the difference between a feedback node and a reference, then presenting the result to a controller or comparator stage. The two channels may monitor two rails or provide gain and filtering in a single feedback path. This use requires careful selection of the reference accuracy, resistor network, and compensation values. Review output swing and common-mode behavior at worst-case supply conditions, and confirm that the selected LM358APG4 temperature grade matches the power-supply enclosure environment.
Recommended
Educational and Laboratory Prototyping
The LM358APG4 is well matched to breadboard, trainer-board, and laboratory amplifier exercises because it is a recognizable dual general-purpose op amp in a through-hole 8-pin PDIP package. Students can construct inverting, non-inverting, summing, comparator-style, and feedback experiments while learning how external components define analog behavior. The commercial temperature range supports ordinary classroom environments. Use the manufacturer pinout to prevent package-orientation errors and consult the datasheet before applying input or output voltages outside the device’s supported ranges.
Recommended
Legacy Equipment Repair
The 8-pin PDIP format makes LM358APG4 relevant to repair and modernization of legacy analog boards that use socketed dual-op-amp circuits. The part can support replacement of a failed amplifier channel while preserving the original through-hole layout, provided the exact ordering code and pinout match the failed device. Before installation, inspect socket condition, verify supply polarity, and compare the original part’s temperature grade and electrical limits. DIP construction is mechanically convenient for service work but occupies more board area than a surface-mount alternative.
Recommended
Recommended Products Summary
Engineering reference data for LM358APG4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LM358N | LM2904P | RC4558 | SGMI8358 | TP358 | BP358 |
|---|---|---|---|---|---|---|---|
| Package | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics | SGMC | 3PEAK | SGMC |
| Amplifier Channel Count | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits |
Key Differentiators
- Exact Texas Instruments ordering identity (vs LM358N)
- Two general-purpose channels in a through-hole package (vs SGMI8358)
- Service-friendly through-hole construction (vs TP358)
Design Notes
Use the manufacturer pin-description table when assigning the eight PDIP leads, and preserve the standard counter-clockwise package numbering used for the DIP footprint. Confirm pin 1 orientation from the package marking and schematic rather than from the product image. Leave adequate clearance around the IC for socket access, axial component orientation, and hand soldering. Because the package is through-hole, check lead pitch and row spacing against the PCB library before fabrication.
Verify every input, output, and supply pin against the manufacturer absolute-maximum and recommended operating conditions before energizing the circuit. Decoupling capacitors should be placed close to the power terminals, with the loop formed by each capacitor and its associated supply pin kept as short as practical. Select bypass capacitance using the manufacturer stability and frequency-response guidance. Check output loading and supply tolerance so the amplifier never approaches an unverified current or swing limit.
Calculate the closed-loop gain from the intended feedback network and confirm that the resulting bandwidth is sufficient for the signal path. Keep high-impedance input traces short, shield them from switching nodes, and place the feedback resistor close to the relevant amplifier pins to reduce parasitic feedback and oscillation risk. If the circuit drives a long cable or capacitive load, add output isolation or isolation resistance and verify stability on the assembled board.
The commercial LM358APG4 variant is intended for a 0°C to 70°C ambient range. If the enclosure can exceed that range, choose an explicitly rated ordering variant instead of extrapolating performance. For normal commercial operation, provide normal airflow around the through-hole package and avoid locating it beside a heat source or power regulator. Temperature-related parameter changes should be checked at the expected worst case rather than at room temperature alone.
Compliance Information
The commercial ordering identity, package, channel count, and temperature range were identified, but no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were found.