OPA689P - 720MHz High-Gain Voltage Feedback Amp | TI
部品番号: OPA689P ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.93 | $2.93 |
| 10 | $2.93 | $29.30 |
| 100 | $2.93 | $293.00 |
| 500 | $2.93 | $1,465.00 |
| 1,000 | $2.93 | $2,930.00 |
OPA689P 概要
What is a voltage-feedback operational amplifier? It is an analog linear amplifier that uses negative feedback to set closed-loop gain from external resistors. In the broader semiconductor hierarchy, an operational amplifier belongs to the linear amplifier, analog IC, and signal-conditioning categories. Its bandwidth and slew rate determine how quickly it can amplify small differential signals while preserving amplitude and phase accuracy.
The verified device data identifies the OPA689P as a voltage-feedback amplifier with one circuit, 720 MHz gain-bandwidth product, 1600 V/us slew rate, 280 MHz minus-3 dB bandwidth, 8 uA input bias current, and 1 mV input offset voltage. The listed supply current is 15.8 mA, while the exact supply-voltage range and detailed electrical limits require manufacturer datasheet confirmation.
OPA689P applications include broadband analog instrumentation, pulse and waveform conditioning, video or communications interface stages, high-gain signal amplification, and laboratory test systems. Its 1600 V/us slew rate can support fast transitions, but the circuit must still observe package, bandwidth, output-swing, stability, and thermal constraints documented by the manufacturer.
For PCB implementation, use a short, controlled feedback path and minimize parasitic capacitance and inductance. Place compensation, gain-setting, and decoupling components close to the relevant pins. Avoid long traces or unterminated cable runs at high frequency; controlled impedance and suitable source and load terminations are important. The exact pinout and recommended operating conditions are marked when absent from the supplied verified records.
This page combines the supplied distributor and manufacturer-search information with packaging, lifecycle, sourcing, and design guidance. It is intended to support initial component selection while engineers verify the official datasheet and application requirements before production release.
ドロップイン代替品: OPA689P — 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: OPA689P （同一形状・フットプリント） — 相違点: Input Offset Voltage, Mounting Type, Package, Slew Rate.
クイック比較ツール — 並列比較する代替部品を選択:
NE5532P
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
価格はお問い合わせください
データシートを見る →OPA689P 最大定格＆電気的特性
| Amplifier Type | Voltage Feedback Amplifier |
| Number of Circuits | 1 |
| Gain Bandwidth Product | 720 MHz |
| -3 dB Bandwidth | 280 MHz |
| Slew Rate | 1600 V/us |
| Input Bias Current | 8 uA |
| Input Offset Voltage | 1 mV |
| 電源電流 | 15.8 mA |
| パッケージ | 8-PDIP (0.300 inch, 7.62 mm) |
| 実装タイプ | Through-hole |
| AEC-Q100 Qualification | not_applicable |
| ライフサイクル状態 | Obsolete |
OPA689P 8-pdip (0.300 inch, 7.62 mm) ピン配置ガイド
OPA689P (8-pdip (0.300 inch, 7.62 mm) パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: OPA689P.
詳細は データシート をご参照ください。
主な用途
OPA689P の用途: 6 件s: Broadband Instrumentation, Pulse and Waveform Conditioning, Communications Interface, Video and Display Signal Conditioning, Laboratory Signal Generators, High-Gain Analog Signal Conditioning.
Broadband Instrumentation
OPA689P fits broadband instrumentation front ends when the signal chain needs substantial bandwidth and fast transient response. Its verified 720 MHz gain-bandwidth product and 1600 V/us slew rate can support high-frequency measurement and signal-conditioning stages, provided the closed-loop gain, output swing, and load are compatible with the manufacturer’s limits. Place the feedback network close to the device and use controlled impedance to prevent parasitic feedback or ringing. Because the part is obsolete and several operating limits are [DATA_NEEDED: supply and output parameters], validate the complete operating envelope before production use.
おすすめ
Pulse and Waveform Conditioning
The OPA689P is suitable for pulse conditioning and waveform amplification where edge speed matters. The listed 1600 V/us slew rate provides a concrete starting point for evaluating required rise and fall times, while the 720 MHz gain-bandwidth product determines usable closed-loop bandwidth. Keep source and load impedances controlled, terminate long interconnect paths, and verify output swing against the pulse amplitude. The verified records do not provide the complete output-voltage or supply limits, so the circuit must be checked against the official datasheet before use.
おすすめ
Communications Interface
OPA689P can serve as a high-bandwidth communications interface amplifier when the design requires a voltage-feedback topology and rapid signal transitions. Its verified 720 MHz gain-bandwidth product supports wideband analog stages, but communications designs must also account for input common-mode range, output swing, supply voltage, noise, and stable feedback compensation. Route the high-frequency path with short traces and appropriate terminations to reduce reflections and preserve phase margin. The obsolete lifecycle status makes it more appropriate for existing equipment or controlled legacy supply than for a new platform.
おすすめ
Video and Display Signal Conditioning
OPA689P may be considered in video or display-related signal paths that need a wideband voltage-feedback amplifier and high slew rate. The listed 280 MHz minus-3 dB bandwidth and 1600 V/us slew rate are useful initial indicators for broadband waveform fidelity, although the exact usable bandwidth depends on closed-loop gain and loading. Keep the amplifier close to the source and load, minimize capacitance at high-impedance nodes, and verify settling and distortion requirements. Video systems often demand strict output swing and impedance details, so the missing datasheet values must be resolved before release.
おすすめ
Laboratory Signal Generators
OPA689P is relevant to laboratory signal-generation and test circuits where fast output transitions and high closed-loop bandwidth are useful. The 720 MHz gain-bandwidth product provides a basis for choosing a suitable feedback network, and the 1600 V/us slew rate can reduce rise-time limitation in selected operating points. Designers should still check output compliance, load capacitance, supply headroom, and stability with the exact external resistor and capacitor values. Because the device is obsolete, prototype work should include a planned replacement or supply-risk review rather than relying on indefinite legacy procurement.
おすすめ
High-Gain Analog Signal Conditioning
OPA689P can amplify small differential signals in high-gain analog signal-conditioning stages when high speed is more important than precision offset or low noise. The listed 1 mV input offset voltage becomes increasingly important as closed-loop gain rises, so system error budgets should include it explicitly. The 8 uA input bias current should be checked against source impedance and leakage. Use short, symmetric feedback routing and provide suitable compensation according to the manufacturer’s guidance. Confirm that the target signal bandwidth and output level remain within the unverified [DATA_NEEDED] operating limits.
おすすめ
エンジニアリング参考データ: OPA689P — 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 | NE5532P |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 8-PDIP (0.300 inch, 7.62 mm) | PDIP-8; exact package match not verified |
主な差別化要因
- High gain-bandwidth product （vs NE5532P)
- High slew rate （vs NE5532P)
- Obsolete lifecycle risk （vs NE5532P)
設計ノート
Keep the feedback loop short and place gain-setting resistors close to the amplifier pins. At the verified 720 MHz gain-bandwidth product, PCB trace inductance and capacitance can alter phase margin and cause oscillation. Use a continuous ground reference, minimize routing around the input and feedback nodes, and verify the assembled layout with appropriate high-speed measurement equipment.
Terminate source and load paths deliberately when using the listed 1600 V/us slew rate. Long cables, uncontrolled impedance, and capacitive loading can create reflections or reduce usable bandwidth. The [DATA_NEEDED: input and output impedance values] should be obtained from the manufacturer datasheet before defining source, load, or cable-termination requirements.
Supply bypassing should be placed close to the device and selected using the manufacturer’s recommended values. The verified record lists 15.8 mA supply current, but it does not provide supply voltage limits, output swing, or maximum output current. Those missing values are essential for rail selection and thermal design; do not infer safe limits from the package description alone.
コンプライアンス情報
The supplied verified records do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable to the supplied general-purpose amplifier information.
