MC3303PG - Quad 1 MHz Operational Amplifier | onsemi | 14-PDIP
N.º de pieza: MC3303PG ✗ Fin de vidaMC3303PG Descripción general
An operational amplifier is an analog building block that compares two input voltages and amplifies their difference. The quad MC3303PG contains four amplifier sections in one package, allowing a circuit to perform multiple amplification, buffering, summing, or comparison functions while reducing board area. MC3303PG belongs to the operational-amplifier hierarchy within analog ICs and integrated circuits, and its true differential input architecture supports accurate sensing of small signals referenced to either ground or another bias point.
The principal features include four amplifier channels, a 1 MHz gain-bandwidth product, operation from a single positive supply, Class AB output stages, true differential inputs, and low input bias current. Internal frequency compensation removes the need for external compensation networks in unity-gain applications. These characteristics make the MC3303PG practical for general-purpose designs where simplicity, tolerance of a wide supply range, and moderate operating bandwidth are more important than rail-to-rail output swing or very low offset voltage.
MC3303PG is electrically similar to the widely used MC1741C-family architecture but adds advantages for single-supply operation. True differential inputs allow the amplifier to operate without artificial ground bias around the input signal. The four-channel arrangement supports signal amplifiers, active filters, transducers, sensor interfaces, audio preamplification, and industrial control modules. A wide 3 V to 36 V operating range also permits operation from both compact low-voltage systems and higher industrial supply rails.
Typical uses include low-frequency sensor conditioning, audio input stages, active-filter sections, comparator-style threshold circuits, and general instrumentation. Because the amplifier is not rail-to-rail, input and output common-mode limits must be respected in low-voltage designs. For battery-powered equipment, verify input bias current and supply-current requirements against the system power budget. The DIP package also requires adequate through-hole spacing and mechanical clearance from adjacent heat-producing components.
When designing around MC3303PG, begin with the manufacturer pin-description and electrical-characteristics tables, especially for input common-mode range, output swing, supply current, and stability. Place bypass capacitors close to the supply pins and route feedback components to minimize parasitic capacitance. Avoid operating the output near either supply rail unless the selected output-load condition remains within the specified swing range.
This product page consolidates the manufacturer product information, distributor identification, package details, and practical engineering guidance for the MC3303PG. It also distinguishes the verified 14-pin DIP replacement candidates from broader functional equivalents so that PCB-level drop-in decisions are made with package and parameter checks rather than by device category alone.
Alternativas directas para MC3303PG — 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 MC3303PG (mismo factor de forma y huella) — difiere en Input Offset Voltage, Mounting Type, Package, Product Type.
MC3403P
✅ Sustitución directaConsulte el precio
Ver hoja de datos →MC3403DG
✅ Sustitución directaConsulte el precio
Ver hoja de datos →MC3303PG Valores máximos y características eléctricas
| Number of Channels | 4 channels |
| Product Type | Quad operational amplifier |
| Supply Voltage Range | 3 V to 36 V |
| Unity-Gain Bandwidth | 1 MHz |
| Common-Mode Rejection Ratio | 70 dB minimum |
| Input Offset Voltage | 10 mV |
| Input Architecture | True differential input |
| Output Stage | Class AB |
| Compensation | Internal frequency compensation |
| Protection | Short-circuit protection |
| Input Bias Current | Low input bias current |
| Supply Configuration | Single supply |
| Encapsulado | 14-PDIP |
| Tipo de montaje | Through-hole |
Guía de configuración de pines de MC3303PG 14-pdip
Configuración de pines para MC3303PG (encapsulado 14-pdip). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para MC3303PG.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MC3303PG es adecuado para 6 aplicacións: Low-Frequency Sensor Conditioning, Audio Preamplification, Active Filter Design, Threshold and Comparison Circuits, Industrial Control and Automation, General Instrumentation Buffering.
Low-Frequency Sensor Conditioning
The MC3303PG fits low-frequency sensor-conditioning blocks that require several amplifier channels on a single board. Its four true-differential-input sections can amplify differential sensor outputs, buffer reference signals, and create gain stages around an analog front end. The 1 MHz unity-gain bandwidth provides more than adequate speed for many temperature, pressure, and position sensors, while the 70 dB minimum common-mode rejection helps reject common-mode noise coupled into the sensor wiring. Because the amplifier is not specified as rail-to-rail, the engineer must verify that the sensor output and amplified result remain within the input common-mode and output-swing limits. The 14-PDIP format is also convenient for prototypes, legacy industrial controls, and through-hole maintenance boards.
Recomendado
Audio Preamplification
MC3303PG can support low-frequency audio preamplifier and mixing functions where four Class AB amplifier sections are useful in one package. The 1 MHz gain-bandwidth product accommodates the audio range with substantial margin, while the true differential input architecture can accept balanced source signals without the artificial-ground arrangements sometimes required by older single-supply op-amps. Engineers should still check the exact input bias current, output swing, noise, and channel-matching figures against the source impedance and required headroom. The DIP package makes the device straightforward to prototype or retain in older audio equipment, although modern compact products will often prioritize a surface-mount equivalent.
Recomendado
Active Filter Design
The four internally compensated amplifier sections in MC3303PG can implement first-order active-filter stages, gain blocks, or signal-shaping networks in instrumentation equipment. Its 1 MHz unity-gain bandwidth gives designers adequate loop-gain margin for many moderate-Q, low-frequency filters, while true differential inputs simplify balanced active-filter realizations. External resistors and capacitors determine the actual pole and zero locations, so component tolerances and parasitic capacitance must be considered. The IC does not inherently provide rail-to-rail outputs, so an asymmetric single-supply implementation may require an output bias reference. Confirm stability, common-mode range, and output-current capability for each intended filter configuration.
Recomendado
Threshold and Comparison Circuits
MC3303PG is suitable for threshold detection and open-loop comparison functions in control and monitoring systems. Its four amplifier sections allow independent comparators to monitor multiple sensor lines, product status signals, or supply-derived thresholds. The 3 V to 36 V single-supply range supports operation across compact control electronics and higher industrial voltage systems, although the actual input and output limits remain important. A comparator design should provide suitable logic-level translation when the output voltage range does not directly match the following digital device. Designers should also account for input offset voltage, which can shift the effective switching threshold, and use hysteresis where noise near the reference could otherwise cause repeated transitions.
Recomendado
Industrial Control and Automation
The MC3303PG can provide compact analog amplification around industrial controllers, relay interfaces, and actuator drive signals when the system remains within the device's analog limits. Its four channels can combine error amplification, signal scaling, output buffering, and threshold detection, reducing the number of separate amplifiers on a through-hole control board. The 14-PDIP package provides convenient socket or soldered-board servicing, while the single-supply operation supports economical system architectures. Industrial suitability still depends on the exact temperature grade, isolation requirements, noise behavior, and compliance documentation of the ordered suffix. The amplifier should remain physically separated from high-temperature regulators or power components that could compromise through-hole assembly clearance.
Recomendado
General Instrumentation Buffering
MC3303PG is useful for buffering sources such as dividers, transducers, and generated reference signals in general-purpose instrumentation. The four independent sections permit two buffers plus two amplifiers in a single package, and true differential inputs are beneficial when the source is balanced or when rejecting shared noise is important. The listed 10 mV input offset voltage is significant for precision measurements, so gains should be selected to limit the resulting output error, and calibration may be needed in high-accuracy systems. The 1 MHz bandwidth is suitable for measurement bandwidths below that range, but the amplifier is not a substitute for modern low-offset or rail-to-rail precision devices when those characteristics dominate the design requirement.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC3303PG — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC3403P | MC3403DG |
|---|---|---|---|
| Package | 14-PDIP | 14-PDIP - same package | 14-PDIP - package shown for comparison |
| Brand | onsemi | Texas Instruments | Texas Instruments |
| Number of Channels | 4 | 4 | 4 |
| Input Architecture | True differential input | True differential input | True differential input |
Diferenciadores clave
- Four integrated true-differential amplifier channels (frente a MC3403P)
- Single-supply operation across a wide voltage range (frente a MC3403DG)
- Specified 1 MHz bandwidth and 70 dB common-mode rejection (frente a MC3403P)
- Simplified through-hole integration (frente a MC3403DG)
Notas de diseño
Treat the MC3303PG as a non-rail-to-rail amplifier. Check the datasheet common-mode input range and output-swing curves against the actual single-supply voltage, signal amplitude, load, and output bias point. A 5 V supply does not automatically permit 0 V to 5 V operation. Likewise, the listed 10 mV input offset voltage can create a meaningful error after substantial gain multiplication, so calculate the resulting offset and use suitable bias and calibration arrangements.
Place the supply bypass capacitor close to the IC power pin and route it using a short, low-inductance path. Keep amplifier feedback components close to their corresponding amplifier pins, and avoid long traces beneath the DIP where switching or high-current paths could couple noise into the inputs. For the 14-PDIP package, verify socket orientation, hole spacing, and clearance from tall adjacent components before committing the layout.
Use the amplifier within its specified common-mode and output ranges, especially in single-supply sensor circuits where inputs sit near ground. Add a deliberate midpoint bias when the source cannot be referenced correctly around the amplifier's usable input range. Keep sensor wiring away from motor and relay conductors, use a grounded shield where appropriate, and evaluate the 70 dB common-mode rejection figure against the actual noise frequency and source impedance.
Estimated: if the circuit operates at 12 V with 1 mA total quiescent current, the supply path consumes approximately 12 mW before considering load current and output-stage dissipation. Actual supply current depends on output swing, load, channel activity, and device-specific characteristics. Verify the worst-case supply current from the datasheet and provide local bypassing appropriate to the number of active channels rather than estimating thermal performance from nominal current alone.
Información de cumplimiento
No definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was present in the accessible product summaries. Confirm the exact suffix with the manufacturer's current compliance documentation before regulated use.
