MC33071P - 3-44V Single Operational Amplifier | onsemi
MPN: MC33071P ✓ AktifMC33071P Ringkasan
An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify the difference between two input voltages. The MC33071 belongs to the precision operational-amplifier hierarchy, combining a wide common-mode input range, single-supply operation, and general-purpose signal handling in one package. Its ability to operate from a 3.0 V supply supports modern low-voltage systems, while the 44 V upper limit accommodates higher-voltage industrial rails.
Key electrical characteristics include a 5 mV maximum input offset voltage and a 4.5 MHz gain-bandwidth product. These specifications make the amplifier useful for low-level AC signal paths where input offset can influence accuracy and where bandwidth determines the range of signals that can be amplified without excessive gain reduction. The 1.9 mA supply current supports power-conscious designs while retaining useful operating speed.
The MC33071P uses a conventional bipolar operational-amplifier architecture. In a typical non-inverting configuration, the input signal is applied to the non-inverting terminal and feedback is returned to the inverting terminal. Its broad supply range allows operation from unregulated or industrial supply sources, although input common-mode and output-swing limits must be respected at each supply voltage.
Typical uses include low-level sensor amplification, transducer buffering, industrial control loops, audio preamplification, and general analog signal conditioning. It can also form active filters and waveform-shaping circuits when the required gain and bandwidth remain within the device's operating limits. Bypass capacitors placed close to the supply pins help reduce noise and stabilize operation in practical layouts.
The primary design trade-off is that a general-purpose bipolar amplifier does not provide the very low offset, low power, or rail-to-rail output performance of specialized modern amplifier families. Confirm common-mode range, output swing, input bias current, and stability requirements against the actual supply voltage before using it in precision or battery-powered systems.
This product record combines the MC33071P electrical characteristics, package information, verified drop-in candidates, application guidance, and PCB design considerations. The comparison and selection material helps engineers distinguish same-family and cross-brand options without overlooking differences in supply range, bandwidth, offset voltage, or package.
Alternatif penggantian untuk MC33071P — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MC33071P (sama faktor bentuk dan footprint) — berbeda di dalam Input Offset Voltage, Mounting Type, Package.
MC33071D
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC34071P
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →OP90GPZ
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
LM741CN/NOPB
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC33071P Rating Maksimal & Karakteristik Listrik
| Product Type | Single operational amplifier |
| Amplifier Classification | General-purpose operational amplifier |
| Number of Circuits | 1 circuit |
| Supply Voltage Range | 3.0 V to 44 V |
| Input Offset Voltage | 5 mV maximum |
| Gain-Bandwidth Product | 4.5 MHz |
| Arus Pemuat | 1.9 mA |
| Offset Voltage Maximum | 7000 uV |
| Paket | 8-pin PDIP |
| Jumlah Pin | 8 pins |
| Tipe Mounting | Through-hole |
| Tipe Output | Single-ended |
Konfigurasi Pin MC33071P
| Pin produk 1 | OFFSET NULL — Offset-voltage adjustment terminal |
| Pin produk 2 | IN- — Inverting input |
| Pin produk 3 | IN+ — Non-inverting input |
| Pin produk 4 | V- — Negative supply or ground |
| Pin produk 5 | OFFSET NULL — Offset-voltage adjustment terminal |
| Pin produk 6 | OUT — Analog output |
| Pin produk 7 | V+ — Positive supply |
| Pin produk 8 | NC — Not connected (per datasheet) |
Aplikasi Umum
MC33071P cocok untuk 6 aplikasis: Industrial Sensor Signal Conditioning, Process-Control Feedback Loop, Audio Preamplifier Stage, Data-Acquisition Front End, Active Filter and Waveform Conditioning, Power-Supply Feedback and Monitoring.
Industrial Sensor Signal Conditioning
The MC33071P fits industrial sensor-conditioning circuits that require one amplifier channel and a broad supply-voltage range. Its 3.0 V to 44 V operating span supports both low-voltage sensor electronics and higher-voltage industrial control systems, while the 4.5 MHz gain-bandwidth product covers many low-frequency process signals. Place the amplifier between the sensor interface and an analog-to-digital converter, checking that the 5 mV maximum input offset voltage remains acceptable for the required measurement resolution. The 1.9 mA supply current also helps control power in distributed monitoring equipment. For field-connected sensors, verify common-mode limits, grounding, surge protection, and isolation requirements before connecting the signal directly to the amplifier.
Direkomendasikan
Process-Control Feedback Loop
The MC33071P can amplify the error signal in an analog process-control loop while operating from a supply selected for the controller's voltage range. Its 4.5 MHz gain-bandwidth product provides more bandwidth than is normally required for slow temperature, pressure, or flow control loops, allowing useful loop shaping with reasonable closed-loop gains. The 5 mV maximum input offset voltage must be small compared with the controller's error range. Use the amplifier in an inverting or non-inverting topology, include compensation appropriate to the loop, and verify output swing at the selected supply voltage. Keep feedback routing short to prevent additional phase delay from degrading control stability.
Direkomendasikan
Audio Preamplifier Stage
The MC33071P is suitable as a general-purpose audio preamplifier when its 4.5 MHz gain-bandwidth product exceeds the signal bandwidth and the circuit does not require rail-to-rail output swing. A non-inverting configuration can provide moderate voltage gain for line-level sources, while an inverting configuration supports active mixing and impedance conversion. The single-supply range from 3.0 V to 44 V permits use with different source-amplifier rails, although the output and input common-mode limits determine the usable signal range. The 5 mV offset specification should be checked against the required low-frequency fidelity. Add suitable input and output coupling or biasing as required by the signal source, and test the circuit for output clipping at the selected supply.
Direkomendasikan
Data-Acquisition Front End
The MC33071P provides a practical first-stage amplifier for a data-acquisition board carrying low-bandwidth analog measurements. Its single-amplifier configuration allows independent conditioning of one channel without sharing bias or feedback networks with neighboring channels. The 4.5 MHz gain-bandwidth product supports acquisition rates well above many temperature, pressure, and level signals, while the 5 mV maximum offset helps limit DC measurement error. Place the amplifier close to the sensor connector, maintain a return path for common-mode current, and keep sensitive input traces away from switching nodes. Confirm input bias current, input capacitance, output swing, and settling behavior against the acquisition bandwidth and selected acquisition rate.
Direkomendasikan
Active Filter and Waveform Conditioning
The MC33071P can implement first- and higher-order active filters when the signal frequency and required closed-loop gain remain within its 4.5 MHz gain-bandwidth product. Practical uses include anti-alias filters, low-frequency amplifiers, and waveform-shaping stages that need active rather than passive gain. Because closed-loop bandwidth decreases as noise gain increases, select the topology and resistor values around the intended operating frequency rather than relying only on the transistor-level gain-bandwidth figure. The 5 mV maximum offset voltage may be significant in a filter passing very small DC or low-frequency signals. Validate capacitor tolerances, source impedance, load impedance, and stability at the intended supply voltage using the manufacturer's typical application guidance.
Direkomendasikan
Power-Supply Feedback and Monitoring
The MC33071P can serve as a general-purpose amplifier in power-supply feedback, current-sense, or supervisory signal-conditioning paths. Its supply range of 3.0 V to 44 V allows operation across many industrial rail levels, and the 4.5 MHz bandwidth is suitable for many feedback-control and monitoring signals. The amplifier does not replace a dedicated differential current-sense amplifier, so the sensing method and common-mode environment must be compatible with its input limits. Keep the high-current path physically separate from the sensitive input and feedback traces. Use local supply bypassing, verify output saturation margins during startup and fault conditions, and ensure that the 5 mV offset specification does not dominate the monitored error budget.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC33071P — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC33071D | MC34071P | OP90GPZ | LM741CN/NOPB |
|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | Analog Devices | Texas Instruments |
| Package | PDIP-8 | PDIP-8 | PDIP-8 | PDIP-8 | PDIP-8 |
| Amplifier Type | General-purpose operational amplifier | General-purpose operational amplifier | General-purpose operational amplifier | Operational amplifier | General-purpose operational amplifier |
| Number of Circuits | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit |
| Output Configuration | Single-ended | Single-ended | Single-ended | Single-ended | Single-ended |
Diferensiator Kunci
- Broad single-supply operating range (vsOP90GPZ)
- Higher stated gain-bandwidth product than the classic LM741 (vsLM741CN/NOPB)
- Same-family replacement path with an 8-pin PDIP footprint (vsMC33071D)
Catatan Desain
Place the supply-bypass capacitor at the MC33071P power pins and connect it directly to the ground reference with a short, low-inductance path. Keep the non-inverting and inverting inputs away from the supply and output routing to reduce coupled noise. Because the MC33071P is a through-hole PDIP device, pay particular attention to copper-trace width, thermal-current capacity, and the ground-return arrangement when the amplifier drives a higher current or shares a board with switching circuitry.
Do not treat the 44 V maximum supply as the usable input or output range. Verify input common-mode limits and output swing at the actual supply voltage, especially in single-supply circuits where the output cannot necessarily reach either rail. Leave pin 8 unconnected and avoid using pins 1 and 5 unless offset adjustment is intentional. When replacing the MC33071P, confirm the alternative's complete pin description because functionally similar operational amplifiers do not always share identical offset-null or compensation connections.
Evaluate closed-loop stability at the highest operating frequency and noise gain required by the design. The 4.5 MHz gain-bandwidth product is the small-signal amplifier specification, not a guarantee that every inverting gain configuration remains stable. Keep feedback-component leads short, place compensation or filtering capacitors close to their associated pins, and account for probe capacitance and load capacitance during validation. Add input filtering when sensor leads can introduce high-frequency noise or ESD events.
Estimated: with a 12 V supply, a 5 V output, and a 1.9 mA supply current, the approximate amplifier dissipation is (12 V - 5 V) × 1.9 mA = 13.3 mW, excluding load current in the output stage. This estimate does not include power dissipated by an attached load. Confirm the complete power budget at the actual load current and ensure the supply-decoupling network prevents oscillation or unwanted supply interaction with other analog stages.
Informasi Konformitas
Compliance declarations are not stated in the product documents linked on this page. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification status with onsemi for the exact ordering suffix.