LT318AN8#PBF - 15MHz 70V/us Op Amp | Analog Devices
部品番号: LT318AN8#PBF ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.46 | $3.46 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LT318AN8#PBF 概要
A high-speed operational amplifier is a voltage-feedback amplifier designed to amplify small signal variations while maintaining useful bandwidth and slew performance. In the electronics hierarchy, an operational amplifier belongs to the amplifier-IC family and the broader semiconductor category. The LT318A's combination of bandwidth, slew rate, and general-purpose classification makes it relevant where signal response must be faster than that of conventional precision or low-noise amplifiers.
The verified data identifies the LT318A as a 15 MHz high-speed amplifier with a 70 V/us slew rate. These two specifications describe different dynamic limits: gain-bandwidth product controls small-signal response, while slew rate controls how rapidly the output can move under large-signal conditions. The 8-DIP package measures 0.300 inches, or 7.62 mm, according to the distributor specification listing, and the product is supplied in a tube.
The LT318AN8#PBF is categorized by DigiKey as a standard, general-purpose amplifier with one circuit. Its 8-terminal PDIP construction and through-hole form factor distinguish it from surface-mount operational amplifiers, making it useful where component insertion, socket use, or manual replacement is preferred. Because high-speed amplifiers can oscillate or produce unstable outputs when layout and compensation conditions are poor, feedback routing, grounding, bypassing, and load capacitance require careful attention.
Typical uses include low-frequency instrumentation signal paths, laboratory test equipment, communications-related signal conditioning, analog control blocks, and educational or prototyping circuits. The verified data does not provide input-offset voltage, input-bias current, noise density, common-mode range, supply range, output swing, or stability-versus-capacitance values, so those specifications should be confirmed in the LT318A manufacturer datasheet before final design release.
The principal design consideration is to preserve high-speed behavior without introducing excessive instability. Keep feedback components close to the amplifier, use a compact ground-return path, bypass supply pins at the circuit, and avoid long unprotected traces. If the load is capacitive or the feedback network is electrically long, compare the simulated result against the manufacturer's recommended compensation and stability guidance.
This page combines the verified manufacturer and distributor metadata with a practical explanation of package, speed, sourcing, and design-selection questions. It also distinguishes confirmed LT318A attributes from parameters that still require datasheet verification, avoiding unsupported claims while helping engineers plan instrumentation and high-speed analog prototypes.
ドロップイン代替品: LT318AN8#PBF — 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。
クイック比較ツール — 並列比較する代替部品を選択:
LT318AN8#PBF
✅ ドロップイン✓ 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 →LT318AN8
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LT318AN8#PBF
✅ ドロップイン✓ 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 →LT318A
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LT318AN8
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LT318AN8#PBF 最大定格＆電気的特性
| Product Type | High-speed operational amplifier |
| Amplifier Type | General-purpose amplifier |
| Number of Circuits | 1 circuit |
| Gain-Bandwidth Product | 15 MHz |
| Slew Rate | 70 V/us |
| パッケージ | 8-PDIP |
| Package Type | 8-DIP |
| Package Width | 0.300 inch / 7.62 mm |
| Terminals | 8 |
| 実装スタイル | Through-hole |
| Packaging | Tube |
| Temperature Grade | Commercial |
LT318AN8#PBF 0.300 inch / 7.62 mm ピン配置ガイド
LT318AN8#PBF (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: LT318AN8#PBF.
詳細は データシート をご参照ください。
主な用途
LT318AN8#PBF の用途: 6 件s: Laboratory Instrumentation Signal Conditioning, Analog Control and Feedback Loops, Communications Signal Conditioning, Active Filter and Frequency-Shaping Circuits, Test and Measurement Buffer, Educational and Prototype High-Speed Circuits.
Laboratory Instrumentation Signal Conditioning
The LT318AN8#PBF fits instrumentation front ends that need a higher-bandwidth amplifier than ordinary general-purpose op-amps. Its verified 15 MHz gain-bandwidth product supports wider small-signal bandwidth, while the 70 V/us slew rate allows faster large-signal transitions. Place it in a non-inverting or inverting conditioning stage after checking the complete input and output ranges in the manufacturer datasheet. Keep feedback traces short and bypass the supply rails locally. The 8-PDIP package is convenient for prototype boards and lab experiments where through-hole replacement is useful.
おすすめ
Analog Control and Feedback Loops
The LT318AN8#PBF can be used in analog control loops where the system must respond faster than a conventional low-speed amplifier. The 15 MHz gain-bandwidth product determines the useful small-signal response, and the 70 V/us slew rate limits large-signal transition speed. In a feedback design, verify phase margin and loop stability rather than relying on bandwidth alone. Route the feedback network compactly, use a low-impedance reference return, and confirm the amplifier can drive the intended load with the available supply rails.
おすすめ
Communications Signal Conditioning
For communications-related signal conditioning, the LT318AN8#PBF provides verified 15 MHz bandwidth and 70 V/us slew rate for preserving fast signal transitions in suitable interface circuits. Its role would typically be gain adjustment, impedance conversion, or active filtering rather than RF amplification. The supplied data does not confirm noise, common-mode range, or output swing, so verify those specifications before using it on high-fidelity communications links. Through-hole construction also makes it practical for breadboard prototypes and early system validation.
おすすめ
Active Filter and Frequency-Shaping Circuits
The LT318AN8#PBF is suitable to evaluate for active-filter stages where a 15 MHz gain-bandwidth product and 70 V/us slew rate provide response capability beyond ordinary low-bandwidth amplifiers. The actual usable bandwidth depends on the selected closed-loop gain, noise gain, component tolerances, and stability. Use the manufacturer datasheet to confirm unity-gain behavior and allowable capacitive loading. Keep resistor and capacitor connections close to the amplifier, and probe the completed circuit for peaking or ringing at the intended operating frequency.
おすすめ
Test and Measurement Buffer
The LT318AN8#PBF can serve as a fast buffer or gain stage in test and measurement equipment when the source impedance and capacitive load are compatible with the amplifier. Its 15 MHz gain-bandwidth product and 70 V/us slew rate help preserve fast transients, but the verified data does not specify input bias current, output drive, or load stability. Confirm those parameters before connecting probes, long cables, or ADC inputs. The 8-PDIP package allows convenient insertion into prototype and fixture boards during bring-up.
おすすめ
Educational and Prototype High-Speed Circuits
The LT318AN8#PBF is a useful component for educational and prototype circuits that demonstrate amplifier bandwidth, slew rate, feedback, and stability. Its 15 MHz gain-bandwidth product and 70 V/us slew rate make speed-related behavior easier to study than with a conventional slow op-amp, while the through-hole 8-PDIP package simplifies insertion into solderless or perforated prototype boards. Start with a conservative feedback network and power supply, then increase frequency or load only after checking the manufacturer's recommended operating conditions.
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: LT318AN8#PBF — 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 | LT318AN8 | LT318A | LT318AN8 |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 8-PDIP | 8-DIP | 8-DIP family package | 8-DIP |
| Product Type | High-speed operational amplifier | High-speed operational amplifier | High-speed operational amplifier family | High-speed operational amplifier |
主な差別化要因
- Verified high-speed performance （vs LT318AN8)
- Through-hole instrumentation-package format （vs LT318A)
- Single-circuit general-purpose positioning （vs LT318AN8)
設計ノート
Keep the feedback loop physically small and connect the feedback components directly to the amplifier pins. High-speed operation makes loop delay and stray capacitance more significant, so route the non-inverting input, inverting input, output, and ground return with short, controlled paths. Verify the final layout against the manufacturer stability guidance and use a grounded, low-inductance return rather than a long shared ground path.
Place supply-bypass capacitors as close as practical to the amplifier supply pins and use the required decoupling network from the LT318A datasheet. The supplied snippets do not state the supply-voltage range, output swing, or maximum output current, so power-rail selection cannot be finalized from the provided data. Confirm headroom across load, temperature, and process variation before powering the circuit.
Do not select a replacement solely because it also uses an 8-DIP package. Verify pin assignments, supply pins, offset-null terminals, compensation requirements, input range, output swing, and capacitive-load stability for every candidate. The supplied cross-reference data contains search tools but no independently verified drop-in competitor, so use manufacturer documentation and distributor cross-reference tools before changing an existing PCB.
コンプライアンス情報
The supplied manufacturer and distributor snippets do not provide RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification information. AEC-Q100 is treated as not applicable because the verified product description identifies a general-purpose commercial amplifier, not an automotive-qualified device.
