LM358S-13 - Dual Low-Power Op Amp, 3-32V | Diodes Incorporated
N.º da peça: LM358S-13 ✓ AtivoLM358S-13 Visão geral
An operational amplifier is an analog signal-processing IC that compares voltages applied to its inverting and non-inverting inputs and amplifies the difference between them. The LM358 family belongs to the dual operational amplifier category within the broader hierarchy of amplifiers, analog ICs, and semiconductor devices. Its internally compensated architecture simplifies closed-loop design because no external compensation components are required for ordinary voltage-feedback operation.
The principal benefits of the LM358S-13 are its wide single-supply operating range, dual-channel integration, low-power designation, and internally frequency-compensated architecture. Two independent amplifiers in one package reduce component count and board area compared with two separate single operational amplifiers. Its 3 V minimum supply supports lower-voltage systems, while the 32 V maximum permits connection to conventional higher-voltage industrial rails when appropriate protection and signal limits are respected.
The LM358 series was designed specifically for operation from a single power supply. In a single-supply circuit, the common or supply-return node is the reference for signal inputs, so input and output voltages must remain within the device's operating limits. Grounding inputs near the common node is important when processing small signals because the output cannot swing below the lower rail. The second amplifier can complement the first as an inverter, comparator, transimpedance amplifier, or buffer in the same package.
Typical applications include low-voltage sensor interfaces, DC signal amplification, threshold detection, loop-error amplification, transducer buffering, and general dual-channel analog conditioning. The 8-pin SO package is suitable for compact surface-mount PCB assemblies, although exact connector and test-point placement should follow the manufacturer's pin configuration. Decoupling capacitors should be placed close to the supply pins, and sensitive analog traces should remain away from switching nodes and high-current return paths.
Design trade-offs must be checked against the complete electrical characteristics before production use. In particular, input common-mode range, output swing, input bias current, input offset voltage, supply-current behavior, noise, and output-current capability determine whether a particular application is electrically suitable. This page combines the confirmed product identity and electrical headline values with package guidance, drop-in comparison information, application patterns, and practical layout recommendations for faster engineering evaluation.
Alternativas drop-in para LM358S-13 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com LM358S-13 (mesmo formato e footprint) — diferindo em Package, Amplifier Type, Gain Bandwidth Product, Input Offset Voltage, Slew Rate.
LM358S
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
LM358SNG
✅ Drop-InConsulte o preço
Ver ficha técnica →LM2904DR
✅ Drop-InConsulte o preço
Ver ficha técnica →LM2904P3
✅ Drop-InConsulte o preço
Ver ficha técnica →LMV358IDT
✅ Drop-In✗ Fora de estoque
$0.13 / unidade
Ver ficha técnica →MC1458DR
✅ Drop-InConsulte o preço
Ver ficha técnica →LM358S-13 Classificações máximas e características elétricas
| Product Type | Dual operational amplifier |
| Number of Amplifier Channels | 2 |
| Amplifier Type | Low-power operational amplifier |
| Supply Voltage Range | 3 V to 32 V |
| Gain Bandwidth | 100 dB |
| Architecture | Independent, high-gain, internally frequency-compensated amplifiers |
| Supply Configuration | Single supply |
| Encapsulamento | 8-SO |
| Tipo de montagem | Surface mount |
| Channel Independence | 2 independent amplifier channels |
| Compensation | Internal frequency compensation |
Configuração de pinos do LM358S-13
| Pino 1 | OUT1 — Output of amplifier channel 1 |
| Pino 2 | IN1− — Inverting input of amplifier channel 1 |
| Pino 3 | IN1+ — Non-inverting input of amplifier channel 1 |
| Pino 4 | V− — Negative supply or ground connection |
| Pino 5 | IN2+ — Non-inverting input of amplifier channel 2 |
| Pino 6 | IN2− — Inverting input of amplifier channel 2 |
| Pino 7 | OUT2 — Output of amplifier channel 2 |
| Pino 8 | V+ — Positive supply connection |
Aplicações típicas
LM358S-13 é adequado para 6 aplicaçãos: Low-Voltage Sensor Signal Conditioning, DC Voltage Comparator and Threshold Detection, Feedback Control and Error Amplification, Transducer Buffering and Active Filtering, Audio and Communication Interface Amplification, Portable and Battery-Powered Analog Circuits.
Low-Voltage Sensor Signal Conditioning
The LM358S-13 fits sensor conditioning because it combines two independent, internally frequency-compensated amplifiers with a confirmed 3 V to 32 V single-supply range. One channel can amplify a sensor signal while the other provides gain, offset, or level conversion in the same 8-SO package. Place a precision bias network at the non-inverting input when a zero-centered signal must sit above the lower supply rail. The amplifier channel does not eliminate sensor errors, so the design should still account for input offset voltage, bias current, common-mode limits, and the required closed-loop gain. The dual-channel arrangement reduces board area and component count compared with two separate single amplifiers.
Recomendado
DC Voltage Comparator and Threshold Detection
The LM358S-13 is suitable for DC threshold detection because its two channels can compare a sensed voltage against a reference or implement complementary limits. With a 3 V to 32 V single-supply range, the device can operate across common low- and higher-voltage systems, but the input and output must remain within their specified common-mode and swing limits. A resistive divider can establish the threshold, and a second amplifier can provide hysteresis or buffer the reference. Because this is a general-purpose operational amplifier rather than a dedicated comparator, switching speed and output-transition behavior must be checked against the required detection interval.
Recomendado
Feedback Control and Error Amplification
The high-gain dual-amplifier configuration of the LM358S-13 supports feedback-control loops in power, actuator, and instrumentation systems. One channel can act as an error amplifier while the other buffers a feedback signal or drives an auxiliary control path. The internally compensated architecture simplifies ordinary closed-loop implementation, while the 8-pin surface-mount package supports compact assemblies. Stable loop design still depends on the plant, compensation network, output loading, and desired crossover frequency. Engineers should use the manufacturer's test and application guidance rather than assume that internal compensation makes every gain, capacitive-load, or feedback topology unconditionally stable.
Recomendado
Transducer Buffering and Active Filtering
The LM358S-13 can buffer high-impedance transducers and implement active analog filters where two related channels are useful. A unity-gain voltage follower protects a sensor from downstream loading, while a second amplifier can form a first- or second-order active filter stage. Single-supply operation simplifies portable instrumentation, although the common-mode input range and output swing determine the usable signal span. Resistor and capacitor selection should establish the intended gain and pole frequency, and the complete datasheet should be consulted for frequency response, noise, input bias current, and output-drive behavior.
Recomendado
Audio and Communication Interface Amplification
The LM358S-13 can provide inexpensive analog gain and buffering in noncritical audio or communication interface circuits. Its two channels can amplify an input and buffer a reference, attenuate a signal, or implement active gain stages in a compact surface-mount package. The low-power designation and wide supply range suit general-purpose equipment, but audio-quality applications should verify noise, distortion, slew rate, output-current capability, and output-swing specifications from the full manufacturer characteristics. Avoid using the device where a high-fidelity audio amplifier specification requires lower noise or greater bandwidth.
Recomendado
Portable and Battery-Powered Analog Circuits
The LM358S-13 fits portable and battery-powered analog circuits because it offers two low-power amplifier channels in one package and can operate from a 3 V single supply. Both channels can serve low-frequency sensor, control, or measurement paths without requiring separate packages. At the minimum supply voltage, designers must account for the restricted output swing and common-mode range, especially when signals approach ground. Battery life also depends on total supply current, load, output state, and the selected operating mode. Confirm quiescent-current and output-state behavior in the manufacturer characteristics before sizing the battery and regulator.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para LM358S-13 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | LM358S | LM358SNG | LM2904 | LM2904P3 | LMV358 | MC1458 |
|---|---|---|---|---|---|---|---|
| Package | 8-SO | 8-SO | 8-SO | 8-SO candidate | 8-SO | 8-SO candidate | 8-SO candidate |
| Brand | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Texas Instruments | Texas Instruments | Texas Instruments | Motorola |
| Number of Amplifiers | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Supply Configuration | Single supply | Single supply | Single supply | Single supply | Single supply | Single supply | Single supply |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface-mount candidate | Surface mount | Surface-mount candidate | Surface-mount candidate |
Principais diferenciais
- Confirmed broad single-supply operating range (vs LMV358)
- Two independent high-gain internally compensated channels (vs MC1458)
- Direct same-family surface-mount ordering options (vs LM358S)
Notas de projeto
Place the supply bypass capacitor directly between the LM358S-13 positive supply pin and the common or V− pin, with the shortest possible trace and ground return. Keep both amplifier channels on the same local return reference when they share a signal domain. Place feedback resistors close to the relevant input and output pins so that the feedback loop encloses the smallest practical area and is less susceptible to switching-node pickup.
Do not allow either input to float. Tie each unused input to a defined reference point through a suitable resistor, normally the common node for a non-inverting follower or the amplifier output for an inverting stage. If the unused channel is configured as a buffer, its output must remain within the output-swing limits. Confirm that every used input remains within the specified common-mode range under supply and tolerance extremes.
A single-supply amplifier cannot produce a true negative output below its lower rail. Biasing around the midpoint is therefore necessary for AC signals centered on zero, and input and output limits must be checked for sensor offsets and resistor tolerance. Avoid substituting LM358N for LM358S-13 without a PCB change because LM358N conventionally uses a through-hole 8-pin DIP footprint rather than the LM358S-13 surface-mount 8-SO footprint.
Keep high-current switching paths, inductive components, and digital return currents physically separated from the non-inverting inputs and feedback nodes. Use a continuous ground reference where practical, but avoid routing sensitive signals over split-plane boundaries. For long input routes, use guarding or differential routing if the source impedance is high, and evaluate the circuit for input bias-current error and capacitive feedback instability.
Informações de conformidade
No definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was present in the cited product information. Confirm current compliance documentation with Diodes Incorporated before procurement.