NE5534PSRE4 - 10MHz Low-Noise Op Amp | Texas Instruments
Référence : NE5534PSRE4 ✓ ActifNE5534PSRE4 Présentation
An operational amplifier is a voltage-controlled differential amplifier whose open-loop gain is used to amplify the difference between two input signals. In the broader electronics hierarchy, an operational amplifier belongs to the amplifier IC and signal-conditioning categories. The NE5534 family is especially recognized for combining wide bandwidth, low input noise, high slew rate, and relatively high output-current capability in a conventional analog package.
The main performance features include 3.5 nV/√Hz typical voltage-noise density, 500 µV typical offset voltage, 13 V/µs typical slew rate, and 10 MHz typical gain-bandwidth product. A typical DC open-loop voltage gain of 100 dB supports accurate amplification when feedback establishes the closed-loop gain. The listed supply-voltage range of 10 V to 30 V also accommodates dual supplies of ±5 V through ±15 V.
The NE5534 uses a conventional single operational-amplifier architecture in an 8-pin SOIC package. Its wide bandwidth allows it to handle audio frequencies well beyond the upper limit of the 20 kHz audio band. The 13 V/µs slew rate provides additional headroom for larger signal transitions, while low input-noise density helps preserve quiet signal-chain performance. The 38 mA per-channel supply-current figure supports the device's ability to drive moderate loads.
Typical uses include low-noise preamplifier stages, audio mixer and distribution circuits, microphone interfaces, active filters, and precision instrumentation. In each case, the device is most useful when input-referred noise and slew-rate margin are more important than minimum power consumption. The amplifier can also serve as a general op-amp block where a unity-gain-stable, single-channel device is convenient.
When designing a new board, verify the complete pinout against the manufacturer datasheet before assigning offset-null, supply, input, and output functions. Decoupling capacitors should be placed close to the supply pins, and output loads must remain within the device's stated limits. The NE5534PSRE4 ordering code indicates an 8-pin SOIC package supplied in a reel-oriented commercial configuration.
Alternatives de remplacement direct pour NE5534PSRE4 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec NE5534PSRE4 (même facteur de forme et même empreinte) — différant par Common-Mode Rejection Ratio, Package, Slew Rate.
NE5534DR
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →NE5534PSRE4 Valeurs maximales et caractéristiques électriques
| Amplifier Type | Single general-purpose operational amplifier |
| Unity-Gain Bandwidth | 10 MHz typical |
| Input Voltage-Noise Density | 3.5 nV/√Hz typical |
| Input Offset Voltage | 500 µV typical |
| Slew Rate | 13 V/µs typical |
| Maximum Supply Voltage | 30 V |
| Supply-Voltage Range | 10 V to 30 V |
| Dual-Supply Operating Range | ±5 V to ±15 V |
| DC Open-Loop Voltage Gain | 100 dB typical |
| Common-Mode Rejection Ratio | 70 dB |
| Supply Current per Channel | 38 mA |
| Output Voltage Swing | 32 V typical peak-to-peak under stated conditions |
| Boîtier | 8-pin SOIC, 5.30 mm width |
| Type de montage | Surface mount |
| Temperature Grade | Commercial |
| Lead-Finish Style | Gull wing |
Configuration des broches de NE5534PSRE4
| Broche 1 | OFFSET NULL — Offset-voltage null connection |
| Broche 2 | IN- — Inverting input |
| Broche 3 | IN+ — Non-inverting input |
| Broche 4 | V- — Negative supply connection |
| Broche 5 | COMP — Frequency-compensation connection |
| Broche 6 | OUT — Output connection |
| Broche 7 | V+ — Positive supply connection |
| Broche 8 | NC — Not connected |
Applications typiques
NE5534PSRE4 convient pour 6 applications: Low-Noise Audio Preamplifier, Audio Mixer and Distribution Amplifier, Microphone Interface, Precision Active Filter, Instrumentation Signal Conditioning, Analog Test and Measurement Buffer.
Low-Noise Audio Preamplifier
The NE5534PSRE4 fits low-noise audio preamplifiers because its 3.5 nV/√Hz typical input-voltage noise and 13 V/µs typical slew rate provide useful signal-chain margin. It is commonly placed ahead of a voltage-gain stage using a non-inverting configuration, with the feedback network determining the closed-loop gain. The 10 MHz typical unity-gain bandwidth is substantially above the 20 kHz audio band, while the 38 mA per-channel supply current supports moderate output loading. Designers should still optimize the gain-setting resistors because their Johnson noise can dominate a high-gain stage, and should keep the non-inverting input route short and away from output and supply-current paths.
Recommandé
Audio Mixer and Distribution Amplifier
The NE5534PSRE4 is suitable for audio mixer summing and distribution blocks where multiple low-level sources must be amplified consistently. Its 3.5 nV/√Hz typical noise density helps avoid adding unnecessary hiss, while the 13 V/µs slew rate provides transition margin for rapidly changing musical waveforms. The single-amplifier 8-pin SOIC format also makes it practical to use separate channels for multiple mix buses. In a practical mixer, the principal limitation is the number of independent amplifier sections available in the enclosure, not the NE5534's audio bandwidth. Grounding and signal routing should be planned carefully so input returns, mixer-bus returns, and output returns do not create shared-impedance hum.
Recommandé
Microphone Interface
The NE5534PSRE4 can provide the first gain stage for an electret or dynamic microphone interface when low input-referred noise is important. Its 3.5 nV/√Hz typical voltage-noise density and 500 µV typical offset voltage are useful at the beginning of a low-level signal path, and the device supports ±5 V to ±15 V dual supplies for signal headroom. Practical microphone designs must add input coupling and biasing components as required, account for connector and cable noise, and select the gain resistor so its thermal noise does not overwhelm the amplifier. The layout should isolate the microphone input from clocked digital nodes and keep the input ground reference close to the device.
Recommandé
Precision Active Filter
The NE5534PSRE4 is appropriate for active audio filters because its 10 MHz typical unity-gain bandwidth and 13 V/µs slew rate provide margin above the passband and at filter transitions. In an active filter, gain and frequency are established by external resistors and capacitors, so component tolerances and parasitic capacitance can influence the response as much as the op amp itself. The device's low 3.5 nV/√Hz input noise is helpful in filters processing low-level signals, while dual ±5 V to ±15 V operation simplifies biasing around zero volts. Keep R-C networks close to the relevant pins, maintain symmetric signal routing where practical, and verify the compensation-related pin connection against the selected circuit topology and datasheet.
Recommandé
Instrumentation Signal Conditioning
The NE5534PSRE4 can serve in instrumentation conditioning when the source is low impedance and the circuit does not require rail-to-rail operation. Its typical 100 dB DC open-loop gain supports accurate closed-loop amplification, while the 70 dB listed common-mode rejection ratio can reduce common-mode interference in suitable measurement circuits. The 3.5 nV/√Hz noise density benefits small-signal conditioning stages, and the 30 V maximum supply rating permits higher-voltage instrumentation than low-voltage modern rail-to-rail devices. Designers should verify input and output common-mode limits, bias-current behavior with high source impedance, and frequency-dependent noise around the measurement bandwidth before finalizing the stage.
Recommandé
Analog Test and Measurement Buffer
The NE5534PSRE4 is useful as a general-purpose buffer or amplifier in bench-style analog test and measurement circuits because it combines 10 MHz bandwidth, 13 V/µs slew rate, and a 30 V maximum supply voltage. A buffer can isolate a source from a measurement or switching load while preserving signal integrity, provided the source impedance and capacitive load remain within the device's operating conditions. The 38 mA per-channel supply-current rating is also more useful than a micropower amplifier when driving moderate loads. Because the component is not specified as a modern rail-to-rail precision part, supply rails should provide adequate common-mode and output-swing margin. A 0.1 µF bypass capacitor near each supply pin is a common starting point, subject to the manufacturer guidance.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour NE5534PSRE4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | NE5534DR |
|---|---|---|
| Package | 8-pin SOIC (0.209 inch, 5.30 mm width) | 8-pin SOIC (0.209 inch, 5.30 mm width) |
| Brand | Texas Instruments | Texas Instruments |
| Amplifier Configuration | Single amplifier | Single amplifier |
| Unity-Gain Bandwidth | 10 MHz typical | 10 MHz typical |
| Input Voltage-Noise Density | 3.5 nV/√Hz typical | 3.5 nV/√Hz typical |
| Input Offset Voltage | 500 µV typical | 500 µV typical |
| Slew Rate | 13 V/µs typical | 13 V/µs typical |
| Maximum Supply Voltage | 30 V | 30 V |
| DC Open-Loop Voltage Gain | 100 dB typical | 100 dB typical |
| Supply Current per Channel | 38 mA | 38 mA |
Principaux différenciateurs
- Conventional low-noise audio performance (vs NE5534DR)
- High slew rate for audio-band amplification (vs NE5534DR)
- Broad supply-voltage capability (vs NE5534DR)
Notes de conception
Place the positive and negative supply bypass capacitors immediately adjacent to pins 7 and 4, and connect their return paths to a quiet ground plane without sharing narrow neck geometry with output or digital return currents. Keep the input traces, feedback resistors, and compensation connection compact to minimize parasitic capacitance and susceptibility to injected noise. Although the verified excerpts do not provide the manufacturer's recommended capacitance values, the official datasheet should control the final component selection.
Do not assume that any amplifier marketed as an audio equivalent is pin compatible. The cross-reference discussion specifically raises concerns that some alternatives differ at pin 5, and forum evidence warns that a familiar replacement can therefore require PCB changes. Before substituting any part, compare pins 1 through 8, the compensation network, input and output common-mode ranges, supply limits, stability configuration, and noise performance. Treat the NE5534DR as a same-family ordering option rather than substituting an unverified cross-brand device.
In low-noise audio and microphone circuits, the NE5534PSRE4's 3.5 nV/√Hz input-noise density is only one part of the total noise budget. Include the thermal noise of gain-setting resistors, source impedance, input leakage, and the Johnson noise associated with the preceding stage. Use a non-inverting topology when the source impedance is low enough, and connect the inverting input directly to the feedback network to avoid an unnecessary long high-impedance trace.
The verified 38 mA per-channel supply-current figure means that multiple NE5534 devices can consume meaningful board-level current even though each channel operates from a single 30 V maximum supply. Confirm total supply capacity, dropout margin, and the heat generated by nearby circuitry. The datasheet's 30 V maximum is an absolute rating rather than a recommended operating point, and the listed 10 V to 30 V range should be respected during normal operation.
Informations de conformité
The verified excerpts identify a commercial-grade operational amplifier but do not provide explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements. AEC-Q100 is recorded as not applicable because the verified temperature-grade description is commercial rather than automotive.
