NE5534PSRG4 - Low-Noise 10 MHz Op Amp | Texas Instruments
N.º da peça: NE5534PSRG4 ✓ AtivoNE5534PSRG4 Visão geral
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. Operational amplifiers belong to the amplifier IC hierarchy, where NE5534 is positioned as a low-noise general-purpose precision amplifier for audio and signal-conditioning applications. Its input-noise performance is particularly important in circuits where small signals must be amplified without adding excessive broadband noise to the useful signal.
Verified device characteristics include a typical unity-gain bandwidth of 10 MHz, typical common-mode rejection ratio of 100 dB, typical high DC voltage gain of 100 V/mV, typical peak-to-peak output-voltage swing of 32 V under the cited test condition, and typical high slew rate of 13 V/µs. These values make the NE5534 suitable for audio preamplification, active filtering, mixer stages, microphone interfaces, and other circuits requiring low-noise gain with adequate bandwidth.
The NE5534 is designed as a single amplifier rather than a quad-device package. Its internally compensated architecture simplifies many conventional feedback amplifier layouts because no external compensation network is normally required in the standard application configuration. Designers should nevertheless observe the output-voltage, common-mode input-voltage, supply-voltage, and stability limits shown in the manufacturer datasheet.
Typical implementations include low-level microphone preamplifiers, stereo line-stage amplifiers, active equalizers, crossover networks, audio mixing consoles, and instrumentation-style signal-conditioning blocks. In a microphone path, the amplifier converts a small source voltage into a larger signal while the 3.5 nV/√Hz noise figure helps preserve quiet signal information. In active-filter and mixer circuits, its 10 MHz bandwidth and 13 V/µs slew rate provide useful headroom for moderate-frequency audio signals.
A critical design practice is to verify signal amplitude against the available output swing. The verified 32 V peak-to-peak swing is a typical value under a ±18 V supply condition, not a guarantee of rail-to-rail operation. Input and output coupling, grounding, power bypassing, stability margin, and distortion must be evaluated against the target source impedance and signal frequency.
This page consolidates the verified distributor specifications, package information, cross-reference findings, and practical selection guidance for NE5534PSRG4. It also distinguishes the confirmed SOIC-packaged NE5534DR alternative from broader functional substitutes that are not verified as true pin-to-pin drop-ins.
Alternativas drop-in para NE5534PSRG4 — 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 NE5534PSRG4 (mesmo formato e footprint) — diferindo em Number of Circuits, Package, Peak-to-Peak Output Voltage Swing, Slew Rate.
NE5534DR
✅ Drop-InConsulte o preço
Ver ficha técnica →NE5534PSRG4 Classificações máximas e características elétricas
| Number of Circuits | 1 circuit |
| Amplifier Type | Single general-purpose operational amplifier |
| Unity-Gain Bandwidth | 10 MHz typical |
| Input Voltage Noise Density | 3.5 nV/√Hz typical |
| Common-Mode Rejection Ratio | 100 dB typical |
| High DC Voltage Gain | 100 V/mV typical |
| Peak-to-Peak Output Voltage Swing | 32 V typical at VCC+ = +18 V and 600 Ω load |
| Slew Rate | 13 V/µs typical |
| Encapsulamento | 8-pin SOIC, 5.30 mm width |
| Tipo de montagem | Surface mount |
| Terminal Form | Gull wing |
| Temperature Grade | Commercial |
| Number of Terminals | 8 terminals |
Configuração de pinos do NE5534PSRG4
| Pino 1 | OFFSET NULL — Offset-voltage null adjustment terminal |
| Pino 2 | INVERTING INPUT — Inverting input terminal |
| Pino 3 | NON-INVERTING INPUT — Non-inverting input terminal |
| Pino 4 | V- — Negative supply-voltage terminal |
| Pino 5 | OFFSET NULL — Offset-voltage null adjustment terminal |
| Pino 6 | OUTPUT — Amplified output terminal |
| Pino 7 | V+ — Positive supply-voltage terminal |
| Pino 8 | NC — Not connected |
Aplicações típicas
NE5534PSRG4 é adequado para 6 aplicaçãos: Low-Noise Audio Preamplifier, Stereo Line Stage, Active Audio Equalizer, Audio Mixing Console, Active Crossover Network, Instrumentation Signal Conditioning.
Low-Noise Audio Preamplifier
The NE5534PSRG4 fits a low-level audio preamplifier because its 3.5 nV/√Hz typical input-voltage noise density limits added amplifier noise while its 10 MHz typical unity-gain bandwidth supports audio-band signals. The amplifier can provide voltage gain in an inverting or non-inverting feedback topology, subject to its output-swing and stability limits. In a microphone or instrument input, source impedance should be compared with the operating-point data in the manufacturer datasheet, and the output should remain below the verified 32 V peak-to-peak typical swing condition. Short feedback paths, a clean ground reference, and local supply decoupling are more important than raw bandwidth in preserving a quiet signal path.
Recomendado
Stereo Line Stage
The NE5534PSRG4 is appropriate for a stereo line stage where low input noise, high open-loop gain, and adequate bandwidth are needed. A 100 V/mV typical high DC voltage gain supports useful closed-loop gain, while 100 dB typical common-mode rejection helps reject common-mode disturbances coupled into the audio path. Its 13 V/µs typical slew rate provides margin for reproducing moderate-level transient waveforms without requiring a much faster amplifier. Designers should choose feedback resistors that preserve the intended gain and verify source loading, output loading, supply headroom, and distortion with the actual preamplifier and load. The same op-amp topology can be duplicated for left and right channels with close attention to grounding.
Recomendado
Active Audio Equalizer
The NE5534PSRG4 can serve as the active gain element in an audio equalizer because its 10 MHz typical unity-gain bandwidth gives ample frequency range around the audio band and its 13 V/µs typical slew rate supports moderate signal amplitudes. The 3.5 nV/√Hz typical noise density is valuable when each equalizer band amplifies a small source signal. Stable operation still depends on the selected closed-loop gain, feedback topology, load impedance, and printed-board layout. A practical design should calculate expected peak output against supply limits, reserve adequate loop gain at the lowest useful frequency, and test distortion with the hardest channel combination. Decoupling capacitors should be located near the device rather than at the amplifier output.
Recomendado
Audio Mixing Console
The NE5534PSRG4 is well suited to gain stages inside an audio mixing console because the verified 10 MHz bandwidth, 13 V/µs slew rate, 100 dB typical common-mode rejection ratio, and low 3.5 nV/√Hz noise density support clean signal handling. It can be used around channel preamplifiers, summing interfaces, or line-level buffers where low added noise is important. Console routing, potentiometer loading, and long unscreened interconnects can increase noise or reduce stability margin, so each board should use short feedback paths and a solid analog-ground arrangement. Output headroom must be checked with worst-case signal and control settings, especially because the verified 32 V peak-to-peak swing is a typical condition rather than a rail-to-rail guarantee.
Recomendado
Active Crossover Network
The NE5534PSRG4 can implement active crossover and tone-shaping networks when the target frequencies remain comfortably below its 10 MHz typical unity-gain bandwidth. Its high typical open-loop gain of 100 V/mV supports effective closed-loop amplification, while the 13 V/µs typical slew rate helps preserve waveform shape in crossover bands. Low input noise is useful when the network processes signals already attenuated by passive filters. Component tolerances in the frequency-selective network must be included in the response calculation because amplifier bandwidth alone does not determine cutoff accuracy. The design should also be checked for phase margin, capacitive loading, and output-voltage headroom. Compact SMD packaging supports dense crossover boards, although exposed power-return paths remain essential.
Recomendado
Instrumentation Signal Conditioning
The NE5534PSRG4 can be used for low-level instrumentation signal conditioning when the application requires low noise, high open-loop gain, and modest bandwidth rather than rail-to-rail operation. The 3.5 nV/√Hz typical noise density, 100 dB typical common-mode rejection ratio, and 100 V/mV typical high DC voltage gain are the principal advantages for amplifying small differential signals. Sensor leads should be kept short or shielded because amplifier noise performance does not eliminate interference picked up before the input pins. The designer must verify the input common-mode range, output swing, supply noise sensitivity, and stability with the actual sensor capacitance. An RC or differential filtering stage ahead of the amplifier can reject out-of-band interference when its cutoff is chosen without degrading the intended signal.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para NE5534PSRG4 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | NE5534DR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 8-pin SOIC | 8-pin SOIC |
| Amplifier Configuration | Single amplifier | Single amplifier |
Principais diferenciais
- Confirmed same-brand SOIC replacement path (vs NE5534DR)
- Low-noise performance for audio signal paths (vs NE5534DR)
- Useful bandwidth and transient response (vs NE5534DR)
Notas de projeto
Do not treat every generic NE5534 as a true pin-compatible replacement. The supplied cross-reference discussion specifically notes that trimming and compensation arrangements can differ, and a manufacturer support example identifies pin 5 as a potential incompatibility point. Before substituting, compare the complete SOIC pin map, offset-null connections, supply range, compensation method, and absolute maximum ratings. The confirmed NE5534DR option is preferable because it is a Texas Instruments ordering option in the same 8-pin SOIC format.
Place the input, feedback, and decoupling connections so that the critical loop contains as little PCB area as possible. Keep the offset-null pins available for bias-current compensation where required, but avoid long traces that can collect noise. Connect the supply return directly to a low-impedance ground plane, place bypass capacitance close to pins 4 and 7, and isolate the amplifier return from high-current output paths. These layout practices are important because low input noise does not correct interference or instability introduced through poor grounding.
Verify output headroom at the worst expected signal level and load. The verified 32 V peak-to-peak output swing is a typical value under a specified +18 V supply and 600 Ω condition, not a rail-to-rail limit. For AC-coupled audio stages, calculate maximum source amplitude after gain and attenuation, then add margin for clipping, load variation, and control-position extremes. Confirm stability with the actual source impedance and cable capacitance because added capacitance can alter frequency response even when the nominal 10 MHz bandwidth is unchanged.
Informações de conformidade
The supplied distributor results identify NE5534PSRG4 as a commercial-grade Texas Instruments operational amplifier but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These fields remain unknown rather than inferred.
