NE5534D - 30V, 10MHz Low-Noise Audio Op Amp | Texas Instruments
料号： NE5534D ✓ 量产中NE5534D 概述
An operational amplifier is an analog integrated circuit that uses high open-loop gain and negative feedback to amplify or buffer a voltage difference. Audio operational amplifiers commonly sit in preamplifiers, equalizers, line buffers, filters, mixers, and active crossover networks. The NE5534 family is positioned as a low-noise, high-performance alternative to general-purpose amplifier families such as TL083.
The NE5534D provides 3.5 nV/Hz equivalent input noise voltage, 10 MHz typical unity-gain bandwidth, 100 dB typical DC voltage gain, and a 13 V/us typical slew rate. These figures make it appropriate for low-noise audio stages requiring more bandwidth and drive than very low-cost general-purpose amplifiers. Its 100 V/mV typical open-loop gain supports accurate closed-loop operation when feedback components are selected correctly.
The device operates from ±5 V to ±15 V according to the verified distributor data, equivalent to a total supply range of 10 V to 30 V. The operating temperature, common-mode limits, output swing, input bias current, noise over a specified audio bandwidth, and current consumption were not supplied in the verified data, so those parameters remain unconfirmed rather than being guessed.
Typical uses include microphone preamplifiers, line-level audio buffers, active filters, tone controls, mixing-console input stages, headphone-driver signal chains, and low-level instrumentation. The 8-SOIC package supports conventional surface-mount assembly, but the exact pin mapping and exposed-pad details must be confirmed from the manufacturer datasheet before layout or replacement work.
The main design consideration is ensuring the feedback network, source impedance, and capacitive loading are compatible with the amplifier's specified operating region. Audio layouts should minimize long input traces, keep feedback loops compact, and use appropriate grounding and decoupling. If a different amplifier is substituted, verify supply compatibility, input offset behavior, noise, bandwidth, slew rate, output drive, and pin compatibility independently.
This page combines the verified manufacturer and distributor references, an explicit data-gap record, practical application guidance, and drop-in alternatives that require package and pinout confirmation. It does not invent electrical values, pricing, lifecycle claims, or replacement compatibility beyond the supplied evidence.
直接替换替代料： NE5534D ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： NE5534D （相同外形与封装尺寸） ——差异在于 Slew Rate, Package, Amplifier Type, DC Voltage Gain, Equivalent Input Noise Voltage.
NE5534D 最大额定值与电气特性
| Product Type | Single low-noise operational amplifier |
| Manufacturer | Texas Instruments |
| Number of Circuits | 1 |
| 封装 | 8-SOIC |
| 安装类型 | Surface Mount |
| Total Supply Voltage | 10 V to 30 V |
| Equivalent Input Noise Voltage | 3.5 nV/Hz |
| Unity-Gain Bandwidth | 10 MHz typical |
| DC Voltage Gain | 100 dB typical |
| Slew Rate | 13 V/us typical |
| Open-Loop Voltage Gain | 100 V/mV typical |
| Supply Configuration | ±5 V to ±15 V |
| Common-Mode Rejection Ratio | 100 dB typical |
| Peak-to-Peak Output Voltage Swing | 32 V typical at ±18 V |
NE5534D 8-soic 引脚配置指南
NE5534D（8-soic 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： NE5534D.
请参阅 数据手册 以查看完整引脚配置。
典型应用
NE5534D 适用于 6 应用s: Microphone Preamplifier, Line-Level Audio Buffer, Active Equalizer, Audio Mixers and Summing Amplifiers, Active Crossover and Filter, Headphone and Line Output Driver.
Microphone Preamplifier
The NE5534D fits low-level microphone preamplifier stages because its verified 3.5 nV/Hz equivalent input noise voltage supports a low-noise signal path, while 100 V/mV typical open-loop gain supports stable closed-loop gain. The 10 MHz typical unity-gain bandwidth and 13 V/us typical slew rate provide ample speed for audio-band stages. Place the amplifier close to the microphone input, keep the feedback network compact, and verify biasing, phantom power, source impedance, and output loading against the manufacturer datasheet.
推荐
Line-Level Audio Buffer
The NE5534D is appropriate for line-level buffering when a source impedance and cable load require more drive than a basic low-cost amplifier. Its 13 V/us typical slew rate and 10 MHz typical unity-gain bandwidth help preserve audio transients, while the 100 V/mV typical open-loop gain supports accurate voltage following when the feedback connection is clean. Check the actual load, output swing, and stability with cable capacitance because those details are not fully specified in the supplied verified data.
推荐
Active Equalizer
The NE5534D can be used in an active EQ or tone-control network when low noise and adequate bandwidth are more important than minimum cost. The verified 3.5 nV/Hz noise figure is useful with relatively high source impedances, while the 10 MHz typical bandwidth leaves margin above audio frequencies. Select resistor and capacitor values around the intended gain, keep the feedback loop compact, and validate maximum output swing and distortion at the actual supply voltage and load.
推荐
Audio Mixers and Summing Amplifiers
The NE5534D is suitable for a mixer summing or summing-buffer path where multiple low-level audio signals must be combined with controlled gain. Its verified 100 V/mV typical open-loop gain and 13 V/us typical slew rate provide useful gain-bandwidth margin, while low equivalent input noise helps preserve quiet signal handling. The external summing network determines bandwidth and stability, so verify resistor noise, source impedance, output loading, and rail-to-rail headroom in the finished circuit.
推荐
Active Crossover and Filter
The NE5534D can serve in an active audio crossover or low-pass filter where a wide open-loop bandwidth helps the closed-loop network determine the response. The verified 10 MHz typical unity-gain bandwidth and 13 V/us typical slew rate are useful for audio transients, and the 3.5 nV/Hz noise specification supports low-level stages. Choose filter-component tolerances carefully, confirm phase margin and stability from the manufacturer data, and test capacitor tolerance because it can materially change the cutoff frequency.
推荐
Headphone and Line Output Driver
The NE5534D can be used as a line-output driver or headphone-driver element when the load and signal level fit the device's verified capabilities. Its 13 V/us typical slew rate and 10 MHz typical unity-gain bandwidth provide useful transient response, while the 100 V/mV typical open-loop gain supports closed-loop accuracy. Do not assume direct headphone capability: check output-current limits, output swing, stability with cable capacitance, and thermal performance in the full manufacturer datasheet.
推荐
推荐产品汇总
工程参考数据： NE5534D ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | NE5534P | NE5532D |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-SOIC | 8-pin PDIP | SOIC-8 |
| Application Category | Audio operational amplifier | Audio operational amplifier | Audio operational amplifier |
关键差异点
- Single-channel NE5534D form factor （对比 NE5532D)
- Surface-mount implementation （对比 NE5534P)
- Audio-focused speed and noise balance （对比 NE5534P)
设计说明
The verified supply configuration is ±5 V to ±15 V, or 10 V to 30 V total. Check absolute maximum voltage, input common-mode range, output swing, and power dissipation in the complete manufacturer datasheet before selecting bypass capacitors or defining rail limits. Place supply decoupling close to the device and keep the return path short so that supply noise does not appear inside the audio signal band.
For an audio preamplifier or buffer, keep the amplifier input, feedback components, and output route compact to reduce parasitic pickup and high-frequency instability. Connect the decoupling return directly to the relevant ground reference and avoid routing sensitive input traces beside power, clock, or digital-switching nets. If the source is high impedance, use guarded grounding and short traces because connector leakage can dominate the amplifier's specified noise.
Do not treat NE5534D and NE5534P as mechanically interchangeable: the verified data identifies SOIC and PDIP packages. Likewise, verify that any dual amplifier has the same pin functions, supply limits, output-drive behavior, and stability before replacing a single device. Also check the finished circuit's load and cable capacitance; nominal bandwidth and slew rate do not establish safe operation for every external load.
合规信息
No RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status was supplied in the verified data. Compliance must be confirmed from the current manufacturer product documentation and the exact orderable part.
