NE5534ADRE4 - 10 MHz Low-Noise Op Amp | Texas Instruments
部品番号: NE5534ADRE4 ✓ 生産中NE5534ADRE4 概要
An operational amplifier is an analog integrated circuit that uses high-gain feedback to amplify the difference between its differential inputs. Within the broader hierarchy, the NE5534ADRE4 is a voltage-feedback operational amplifier, a general-purpose amplifier IC, and a member of the power-management and signal-conditioning ecosystem. Its combination of low voltage-noise density, high output-drive capability, broad bandwidth, and low distortion makes it suitable where audio fidelity is more important than minimum cost or minimum power.
Key ratings include 3.5 nV/√Hz typical input-noise density, 10 MHz typical unity-gain bandwidth, 100 dB typical DC voltage gain, 100 V/mV typical peak-to-peak output-voltage swing, and 13 V/ms typical slew rate. The device also supports offset nulling and external compensation. A single amplifier is provided in the 8-SOIC (0.154-inch, 3.90 mm width) package, allowing direct use in conventional analog PCB layouts.
The NE5534 family combines low-noise input stages with the drive required to support relatively low-impedance audio loads. Its 32 V typical peak-to-peak output swing under the stated 18 V and 600 Ω operating condition provides useful headroom for audio stages. The A suffix identifies a version selected for guaranteed noise performance, while the 8-pin SOIC format preserves the familiar NE5534 footprint.
Typical uses include microphone preamplifiers, mixing-console input and summing stages, active analog filters, line-level buffers, audio distribution, and instrumentation requiring low-noise amplification. In each case, the circuit should provide suitable input and output decoupling, observe common-mode and output-swing limits, and avoid relying on excessive capacitive loading or output-current operation.
A key design consideration is stability with the feedback network, source impedance, and load. The manufacturer datasheet supports external compensation, but compensation values and stability boundaries must be selected for the actual gain, load, and source impedance rather than copied without verification. Decoupling capacitors should be placed close to the supply pins, and sensitive audio inputs should use short, shielded routing to minimize added noise.
This page combines the verified manufacturer and distributor information for the NE5534ADRE4 with practical supply, replacement, comparison, and design guidance. It distinguishes verified drop-in options from broader functional substitutes and highlights where package, grade, or sourcing assumptions must still be confirmed before production use.
ドロップイン代替品: NE5534ADRE4 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: NE5534ADRE4 （同一形状・フットプリント） — 相違点: Package, Slew Rate, Common-Mode Rejection Ratio, Manufacturer, Number of Circuits.
NE5534DR
✅ ドロップイン価格はお問い合わせください
データシートを見る →NE5534ADR2
✅ ドロップイン価格はお問い合わせください
データシートを見る →NE5534D
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →NE5534ADR2
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →NE5534ADG
✅ ドロップイン📋 参考代替品（カタログ未掲載）
NE5534ADRE4 最大定格＆電気的特性
| Amplifier Type | Single general-purpose operational amplifier |
| Unity-Gain Bandwidth | 10 MHz typical |
| Input Noise Density | 3.5 nV/√Hz typical |
| DC Voltage Gain | 100 dB typical |
| Open-Loop Gain | 100 V/mV typical |
| Slew Rate | 13 V/ms typical |
| Peak-to-Peak Output Swing | 32 V typical at VCC+ = +18 V and RL = 600 Ω |
| Supply Voltage Range | +3 V to +20 V |
| Total Supply Current | 38 mA per channel |
| Input Bias Current | 500 nA typical |
| Common-Mode Rejection Ratio | 10 dB typical as shown in source snippet |
| Offset Nulling | Supported |
| External Compensation | Supported |
| パッケージ | 8-SOIC (0.154 inch, 3.90 mm width) |
| ピン数 | 8 pins |
| 実装タイプ | Surface mount |
NE5534ADRE4 ピン構成
| ピン 1 | NULL — Offset null |
| ピン 2 | IN- — Inverting input |
| ピン 3 | IN+ — Non-inverting input |
| ピン 4 | V- — Negative supply |
| ピン 5 | NULL — Offset null |
| ピン 6 | OUT — Output |
| ピン 7 | V+ — Positive supply |
| ピン 8 | NC — Not connected |
主な用途
NE5534ADRE4 の用途: 6 件s: Audio Microphone Preamplifier, Mixing Console Input Stage, Active Audio Filter, Line-Level Buffer, Precision Analog Instrumentation, Audio Distribution and Headphone Drive.
Audio Microphone Preamplifier
The NE5534ADRE4 fits low-level microphone amplification because its 3.5 nV/√Hz typical input-noise density preserves small signals without adding substantial broadband voltage noise. Its 10 MHz typical unity-gain bandwidth provides ample bandwidth for audio-band gain stages, while the 13 V/ms typical slew rate supports clean transitions when the gain block drives downstream circuitry. The amplifier is used between the microphone or line source and the mixing or recording stage, normally with the non-inverting input receiving the signal and the inverting input defining closed-loop gain. Designers should confirm bias-current error against source impedance, provide supply bypassing at the IC, and use the manufacturer stability guidance if the source or load is capacitive.
おすすめ
Mixing Console Input Stage
The NE5534ADRE4 is suitable for a mixing-console input or summing stage because its A-grade low-noise selection helps maintain signal integrity before attenuation and mixing. Its 100 dB typical DC voltage gain supports accurate closed-loop gain-setting, and its 32 V typical peak-to-peak output swing at the stated 18 V supply and 600 Ω load provides useful drive margin for audio routing networks. In a practical console channel, the device may amplify the line input or drive an active summing and volume-control block. Layout should keep the input path short, return analog ground currents coherently, and avoid sharing sensitive input nodes with digital switching currents.
おすすめ
Active Audio Filter
The NE5534ADRE4 can implement active audio filters where low noise, adequate bandwidth, and output-drive capability are required together. Its 10 MHz typical unity-gain bandwidth provides design margin for filter poles well inside the audio range, while the 13 V/ms typical slew rate helps preserve low distortion for moderately large signals. A second-order equalizer or low-pass stage can use the amplifier with precision feedback resistors and capacitors around the noninverting or inverting topology. Component tolerances should be included in the transfer-function error budget, and the chosen topology should be checked for noise gain, source impedance, load capacitance, and compensation stability.
おすすめ
Line-Level Buffer
The NE5534ADRE4 works as a line-level buffer when a source requires isolation, gain correction, or drive into a following audio block. Its 100 dB typical open-loop gain supports accurate buffered operation, and the 3.5 nV/√Hz typical input noise avoids degrading a conventional line-level signal. A unity-gain voltage follower is one possible implementation, although stability and output loading must be checked against the manufacturer guidance. Decoupling should be placed close to the supply and ground pins, the load should remain within the demonstrated output-current and capacitive-load limits, and the output should not be used as an unrestricted current source.
おすすめ
Precision Analog Instrumentation
The NE5534ADRE4 is useful in low-level precision instrumentation when signal bandwidth remains moderate and voltage noise is important. Its 100 dB typical DC voltage gain and 10 MHz typical unity-gain bandwidth provide a practical operating region for amplifier-based sensor, bridge, and analog-front-end blocks. The amplifier can sit inside a differential or noninverting measurement chain where the system must preserve small signals rather than maximize switching efficiency. Instrument designs should include offset, bias-current, common-mode-range, and output-swing analysis, along with clean grounding and shielding. Because the supplied data does not provide a complete instrumentation-noise model, system noise should be calculated from the actual source impedance and resistor network.
おすすめ
Audio Distribution and Headphone Drive
The NE5534ADRE4 can serve as an audio distribution buffer when its output-drive capability is sufficient for the selected load. The supplied specification lists a 32 V typical peak-to-peak output swing with VCC+ at +18 V and a 600 Ω load, while the 13 V/ms typical slew rate helps maintain signal fidelity through transitions. This makes the device relevant to line-level distribution and carefully designed headphone-buffer circuits, but it is not automatically suitable for every headphone impedance. Designers must verify load current, thermal dissipation, output distortion, and stability, and should add the output series resistance and protection network recommended for the intended downstream stage.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: NE5534ADRE4 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | NE5534DR | NE5534ADR | NE5534D | NE5534A | NE5534ADG |
|---|---|---|---|---|---|---|
| Package | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Noise Grade | NE5534A grade | Standard NE5534 grade | NE5534A grade | Standard NE5534 grade | NE5534A grade | NE5534A grade |
主な差別化要因
- Guaranteed-noise A-grade selection （vs NE5534DR)
- Direct NE5534A family reuse （vs NE5534ADR)
- Cross-brand sourcing option （vs NE5534ADG)
設計ノート
Do not assume that every NE5534-family orderable part provides the same guaranteed-noise selection as NE5534ADRE4. The supplied cross-reference discussion explains that NE5534A is selected from the production line for guaranteed noise performance. If the design requirement depends on that grade, verify the exact suffix, grade markings, and incoming-inspection criteria before approving NE5534DR, NE5534D, or a third-party equivalent.
Place the supply-bypass capacitor close to the V+ and V- pins and connect it through the lowest-impedance return path available. Keep the non-inverting input route short and away from clock, relay, and digital-switching nodes. If offset-null pins are used, route them as short, guarded branches because long exposed traces can collect noise. Confirm the SOIC orientation against the manufacturer pinout rather than relying only on the notch or dot marking.
Evaluate stability with the actual source impedance, feedback resistors, load, and PCB capacitance. The NE5534 family supports external compensation, but the compensation value must correspond to the selected noise gain and load. Avoid adding large load capacitance directly to the output unless the operating conditions are verified. This is particularly important when the amplifier drives a cable, relay, headphone network, or long PCB trace from a mixing console.
Estimated: with a +18 V single supply, a 12 V output, and a 1 mA load, the amplifier power dissipation is approximately (18 V - 12 V) × 0.001 A = 6 mW. This estimate excludes load power and is negligible for the 8-SOIC package. At much higher output current, however, output-drive loss and total dissipation must be recalculated because the stated 32 V swing and 600 Ω condition is not a continuous 600 Ω full-scale load guarantee.
コンプライアンス情報
The supplied search results mention RoHS and REACH in comparison pages but do not provide a definitive status for NE5534ADRE4. AEC-Q100 is not applicable because this is an audio operational amplifier rather than an automotive-qualified device; however, no separate automotive qualification is asserted.