MC3403P - Quad 36V 1MHz Operational Amplifier | onsemi
N.º de pieza: MC3403P ✓ ActivoMC3403P Descripción general
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. The MC3403 belongs to the general-purpose bipolar operational-amplifier family within the broader amplifier IC and semiconductor hierarchy. Unlike circuits built around the classic UA741, the MC3403 was designed with practical single-supply operation in mind. True differential inputs also allow the amplifier to reject common-mode signals when suitable feedback networks and operating conditions are used.
The MC3403P provides internally compensated amplifiers, short-circuit-protected outputs, and a Class AB output stage designed for minimal crossover distortion. Maximum input bias current is specified at 500 nA, making the device practical for higher-impedance sensing paths when leakage and bias-current errors are controlled. Its internally compensated architecture removes the need for an external compensation capacitor in the standard closed-loop configurations shown in typical applications.
Each of the four amplifier sections supports common inverting, non-inverting, summing, and difference-amplifier arrangements. The 1 MHz gain-bandwidth product means bandwidth decreases as closed-loop gain increases; designers should therefore account for gain-bandwidth behavior when targeting precision, pulse, or audio-frequency signals. The 36 V maximum supply also provides ample headroom for industrial and educational circuits, although the actual common-mode and output-swing limits must be observed at lower supply voltages.
Typical uses include low-frequency audio amplification, active filtering, sensor signal conditioning, waveform generation, and general instrumentation. The four independent amplifiers can implement a complete signal chain in one package, reducing board space compared with four separate single or dual amplifier ICs. In AC-coupled audio and instrumentation circuits, input and feedback components can be selected around the required gain and bandwidth rather than relying on a fixed internal compensation network.
Designers should verify the MC3403P pinout before PCB assembly and observe the datasheet limits for input voltage, common-mode range, output swing, supply current, and temperature. A stable bypass capacitor near the supply pins is advisable, and the unused amplifier sections should be configured according to the manufacturer’s recommended practice rather than left floating. Because this is a through-hole DIP device, insertion and soldering require adequate clearance around the package and between adjacent board components.
This product record combines verified manufacturer and distributor information, same-footprint alternatives, package and pinout details, and practical selection guidance. It is intended to help engineers identify the MC3403P quickly for legacy industrial, audio, education, and prototype designs while making package constraints and replacement limits explicit.
Alternativas directas para MC3403P — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MC3403P (mismo factor de forma y huella) — difiere en Package, Maximum Supply Voltage, Product Type, Gain-Bandwidth Product, Amplifier Count.
MC3403N
✅ Sustitución directaConsulte el precio
Ver hoja de datos →LM324N
✅ Sustitución directaConsulte el precio
Ver hoja de datos →LM224N
✅ Sustitución directaConsulte el precio
Ver hoja de datos →MC34074P
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC3403P Valores máximos y características eléctricas
| Number of Amplifiers | 4 amplifiers |
| Amplifier Type | General-purpose bipolar operational amplifier |
| Input Configuration | True differential inputs |
| Maximum Supply Voltage | 36 V |
| Dual-Supply Operating Range | ±18 V |
| Single-Supply Operation | Supported |
| Gain-Bandwidth Product | 1 MHz |
| Maximum Input Bias Current | 500 nA |
| Compensation | Internally compensated |
| Output Protection | Short-circuit protected outputs |
| Output Stage | Class AB |
| Crossover Distortion | Minimal |
| Encapsulado | 14-pin plastic DIP (14-PDIP) |
| Tipo de montaje | Through-hole |
Configuración de pines de MC3403P
| Pin 1 | OUT 1 — Amplifier 1 output |
| Pin 2 | IN 1- — Amplifier 1 inverting input |
| Pin 3 | IN 1+ — Amplifier 1 non-inverting input |
| Pin 4 | V- — Negative supply connection |
| Pin 5 | IN 2+ — Amplifier 2 non-inverting input |
| Pin 6 | IN 2- — Amplifier 2 inverting input |
| Pin 7 | OUT 2 — Amplifier 2 output |
| Pin 8 | OUT 3 — Amplifier 3 output |
| Pin 9 | IN 3- — Amplifier 3 inverting input |
| Pin 10 | IN 3+ — Amplifier 3 non-inverting input |
| Pin 11 | V+ — Positive supply connection |
| Pin 12 | IN 4+ — Amplifier 4 non-inverting input |
| Pin 13 | IN 4- — Amplifier 4 inverting input |
| Pin 14 | OUT 4 — Amplifier 4 output |
Aplicaciones típicas
MC3403P es adecuado para 6 aplicacións: Low-Frequency Audio Signal Conditioning, Active Filters and Equalizers, Sensor Signal Conditioning, Industrial Control and Instrumentation, Waveform Generation and Function Building, Legacy Educational and Prototype Circuits.
Low-Frequency Audio Signal Conditioning
The MC3403P is suitable for low-frequency audio preamplification because it combines four short-circuit-protected, Class AB operational amplifiers with internal compensation and a 1 MHz gain-bandwidth product. The four sections can implement input buffering, gain stages, active tone control, and output drive within one 14-pin DIP package. Its maximum 36 V supply rating provides headroom for higher-voltage analog systems, although the actual output swing must be checked at the chosen rail voltage. AC coupling, feedback resistance, and output loading should be selected to control bass response and prevent clipping.
Recomendado
Active Filters and Equalizers
The MC3403P can implement active low-pass, high-pass, band-pass, or shelving-filter sections when the required closed-loop gain and signal bandwidth fit the amplifier’s 1 MHz gain-bandwidth product. Four internally compensated amplifiers allow one package to implement a multi-section filter or equalizer while reducing the number of external ICs. Component tolerances will directly affect pole and zero placement, so 1% resistors and suitable capacitor tolerances are preferable in precision audio or measurement networks. Prototype circuits should also be checked for stable operation and acceptable output swing.
Recomendado
Sensor Signal Conditioning
The MC3403P fits low-level sensor conditioning requiring amplification, offset adjustment, buffering, and active filtering around one sensor output. Its maximum input bias current of 500 nA is useful when the source impedance is high enough that amplifier bias current could otherwise create a significant error voltage. True differential inputs are also compatible with systems that require rejection of a common-mode signal. The designer must still verify input bias-current cancellation, common-mode range, offset drift, and output-swing margin at the selected supply voltage.
Recomendado
Industrial Control and Instrumentation
The MC3403P is appropriate for general industrial control and instrumentation circuits that operate from a single supply and require multiple amplified control signals. Its four short-circuit-protected amplifier sections can condition feedback signals, buffer sensor outputs, and implement error amplifiers within one package. The 36 V maximum supply rating is useful in 24 V-oriented systems, provided transient protection and supply regulation keep the actual voltage within limits. Grounding, bypass capacitors, input filtering, and isolation from high-energy switching nodes remain essential for reliable measurement accuracy.
Recomendado
Waveform Generation and Function Building
The MC3403P can serve as the active element in relaxation oscillators, integrators, differentiators, and waveform-shaping circuits used in test and educational equipment. Internally compensated amplifiers simplify standard closed-loop arrangements, while the 1 MHz gain-bandwidth product supports many low- and mid-frequency functions. Four sections allow a complete generator chain—such as an oscillator followed by a shaper, inverter, and buffer—to share one package. Component tolerances and amplifier slew rate will determine timing and waveform accuracy, so simulated and measured results should be compared before production use.
Recomendado
Legacy Educational and Prototype Circuits
The MC3403P is well suited to educational laboratories and legacy prototype boards that use a through-hole quad operational amplifier. The 14-pin plastic DIP package is straightforward to inspect, socket, and replace, while four independent amplifiers simplify demonstration of inverting, non-inverting, summing, comparator-like, and active-filter configurations. The 36 V maximum supply supports classroom power-supply arrangements, but beginners should still use current-limited supplies and confirm that all input and output voltages remain within the datasheet limits.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC3403P — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC3403N | LM324N | LM224N | MC34074P |
|---|---|---|---|---|---|
| Brand | onsemi | onsemi | Texas Instruments | Texas Instruments | onsemi |
| Package | 14-PDIP | 14-PDIP | 14-PDIP | 14-PDIP | 14-PDIP |
| Number of Amplifiers | 4 | 4 | 4 | 4 | 4 |
| Amplifier Category | General-purpose bipolar operational amplifier | MC3403-family general-purpose operational amplifier | Quad single-supply operational amplifier | Quad single-supply operational amplifier | Quad differential amplifier |
| Maximum Supply Voltage | 36 V | 36 V | Not provided in verified data | 32 V | Not provided in verified data |
| Gain-Bandwidth Product | 1 MHz | 1 MHz | Not provided in verified data | Not provided in verified data | Not provided in verified data |
| Input Bias Current | 500 nA maximum | 500 nA maximum | Not provided in verified data | Not provided in verified data | Not provided in verified data |
| Input Configuration | True differential inputs | True differential inputs | Not provided in verified data | True differential inputs | Differential inputs |
| Single-Supply Operation | Supported | Supported | Supported | Supported | Not provided in verified data |
| Output Stage | Class AB with short-circuit protection | Class AB with short-circuit protection | Not provided in verified data | Not provided in verified data | Not provided in verified data |
Diferenciadores clave
- True-differential input architecture (frente a LM324N)
- Class AB output with short-circuit protection (frente a LM224N)
- Higher verified maximum supply rating (frente a LM224N)
- Four internally compensated amplifiers in one DIP (frente a MC34074P)
Notas de diseño
Treat the verified 36 V maximum as an absolute device limit, not a nominal operating target. Account for supply tolerance, startup overshoot, and switching transients so the amplifier never exceeds its maximum rating. Use a stable, low-impedance supply and place bypass capacitance close to the supply pins. Because the verified data does not specify the exact recommended capacitor values, use the manufacturer application guidance rather than generic values.
Keep input and feedback traces short and connect each decoupling capacitor directly to the relevant supply and ground pins. In a quad device, neighboring amplifier sections can share a package but should not share long, high-impedance input routes. Maintain the DIP footprint and lead spacing shown by the package drawing, and verify pin 1 orientation against the board silkscreen before assembly.
Do not assume that a generic quad op amp can replace the MC3403P without checking offset voltage, bias current, bandwidth, output swing, common-mode range, noise, and stability. In particular, a valid 14-pin footprint does not guarantee identical DC behavior. Review the unused-section configuration and avoid floating inputs, then verify the completed circuit at the minimum and maximum intended supply voltages.
Información de cumplimiento
The verified search results do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status for the MC3403P. AEC-Q100 is treated as not applicable because the part is a general-purpose analog IC rather than an automotive-qualified device in the supplied evidence.
