MC3403PW - Quad 1MHz 30V Op Amp | Texas Instruments
部品番号: MC3403PW ✓ 生産中MC3403PW 概要
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its two inputs while providing high input impedance, low output impedance, and stable operation with feedback. The MC3403 family combines four amplifiers with a low-power class AB output stage, true differential inputs, internal frequency compensation, and short-circuit protection. It sits within the operational-amplifier category as a general-purpose amplifier for instrumentation, control, and signal-conditioning systems.
Key characteristics include four independent amplifier channels, a 1 MHz gain-bandwidth product, support for single and dual supplies, a true differential input stage, and internal frequency compensation. The -25°C to 85°C operating-temperature range supports industrial and commercial equipment when the surrounding system provides suitable thermal conditions. Its 14-pin TSSOP also reduces board area compared with four separate single-amplifier packages.
Each amplifier is frequency compensated, so applications using voltage gain do not require an external compensation network. The class AB output stage is designed to support linear operation while the short-circuit-protection feature improves resilience in feedback-controlled circuits. Because the device is intended for general-purpose signal amplification, external precision resistors, compensation, output isolation, and protection components may still be needed when driving loads, extending bandwidth, or meeting application-specific noise and accuracy targets.
Typical uses include low-frequency sensor conditioning, feedback-control loops, current-voltage signal conversion, analog summing and difference circuits, and four-channel buffer arrangements. The integrated quad structure is especially useful where several independent analog paths must fit on a compact PCB, such as industrial measurement modules, instrumentation interfaces, and embedded control systems.
PCB layout should keep feedback resistors close to their corresponding amplifier pins, provide a solid ground return, and route high-impedance input nodes away from switching nodes. Decoupling capacitors should be placed close to the supply pins. Designers should verify output swing, input common-mode range, load capability, stability, and supply limits for the intended operating points using the manufacturer datasheet.
This page combines the manufacturer product information, distributor product records, package details, application guidance, and available same-footprint comparison information to support component selection and board-level planning. It also identifies which electrical parameters require confirmation from the complete Texas Instruments datasheet before final design release.
ドロップイン代替品: MC3403PW — 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: MC3403PW （同一形状・フットプリント） — 相違点: Frequency Compensation, Operating Temperature Range, Package.
MC3403PWR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC3303PWR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC3403PW 最大定格＆電気的特性
| Number of Amplifier Channels | 4 circuits |
| Gain-Bandwidth Product | 1 MHz |
| Maximum Supply Voltage | 30 V |
| 動作温度範囲 | -25°C to 85°C |
| パッケージ | 14-pin TSSOP |
| Package Width | 4.40 mm |
| 実装タイプ | Surface Mount |
| Output Stage | Class AB |
| Frequency Compensation | Internal |
| Short-Circuit Protection | Yes |
| Input Architecture | True differential input stage |
| Supply Configuration | Single or dual supply |
MC3403PW 4.40 mm ピン配置ガイド
MC3403PW (4.40 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: MC3403PW.
詳細は データシート をご参照ください。
主な用途
MC3403PW の用途: 6 件s: Industrial Sensor Signal Conditioning, Audio Preamplifier and Mixer, Embedded Feedback Control, Data Acquisition Front End, Power Supply Feedback and Monitoring, General-Purpose Analog Interface.
Industrial Sensor Signal Conditioning
The MC3403PW is suitable for conditioning outputs from low-frequency industrial sensors because its four amplifier channels provide multiple gain, filtering, and buffering paths within one 14-pin TSSOP package. The 1 MHz gain-bandwidth product supports signal processing beyond basic audio frequencies, while the 30 V maximum supply rating accommodates suitably protected industrial interfaces. Designers can use one channel to amplify a sensor output, another for active filtering, and the remaining channels for offset correction or reference buffering. Resistor ratios determine the closed-loop gain, so tolerance and noise must be matched to the measurement accuracy. The complete input common-mode range and output swing must also remain inside the device limits throughout the operating range.
おすすめ
Audio Preamplifier and Mixer
The MC3403PW can implement several low-frequency audio preamplifier, summing, and mixing stages when the circuit remains within its 1 MHz gain-bandwidth product and output-swing limits. Its four class AB amplifiers allow a compact design with four signal paths instead of four separate packages. An inverting summing amplifier, non-inverting gain stage, active low-pass filter, and output buffer are practical arrangements. The package should be positioned away from high-current switching nodes and digital timing signals because feedback-loop bandwidth does not prevent interference from coupling through the PCB. Adequate supply decoupling and a stable return path are necessary to maintain clean operation near the amplifier bandwidth limit.
おすすめ
Embedded Feedback Control
The MC3403PW fits low-bandwidth embedded control loops where four error amplifiers are needed for power, position, temperature, or actuator feedback. Each internally compensated amplifier can close a loop around a sensor and actuator, provided loop crossover is chosen below the available bandwidth with adequate phase margin. The 1 MHz gain-bandwidth product supports many control signals slower than that limit, while the 30 V maximum supply rating provides headroom for appropriately selected industrial rails. Use short feedback paths and place compensation or output-isolation components only where stability analysis requires them. Verify actuator drive current and output voltage limits because the operational amplifier is designed for signal amplification rather than direct high-power output.
おすすめ
Data Acquisition Front End
The MC3403PW can form the analog front end of a compact data-acquisition module by providing differential amplification, gain stages, active filters, and channel buffers. Four integrated channels allow several sensor inputs to be conditioned before conversion while keeping the 14-pin TSSOP footprint compact. Operation from a single or dual supply helps match different sensor interfaces, subject to the device's common-mode and output limits. The 1 MHz bandwidth is appropriate for many low-rate industrial measurements but may limit higher-bandwidth multiplexed systems. Designers should establish antialias-filter requirements, source impedances, settling time, and channel isolation before using the amplifiers close to a high-speed converter.
おすすめ
Power Supply Feedback and Monitoring
The MC3403PW can monitor and compare low-frequency power rails within systems that stay below its 30 V maximum supply rating. Four channels permit comparison of multiple rails, generation of control signals, and conditioning of remote voltage measurements. The amplifiers do not replace dedicated protection, isolation, or high-side current measurement, but they can amplify divider outputs and provide threshold signals for a controller. Feedback resistors should use a resistance range that limits noise and loading while preserving bias-current error control. The design must also ensure that every monitored node stays within the input common-mode range and that the 1 MHz bandwidth does not introduce unwanted coupling into slower power-control loops.
おすすめ
General-Purpose Analog Interface
The MC3403PW is appropriate for miscellaneous analog interface tasks such as voltage buffering, level shifting within common-mode limits, active filtering, and differential-to-single-ended conversion. Four channels in one 14-pin TSSOP reduce component count in instruments and controller boards where the required signals remain within the 1 MHz bandwidth. The internal frequency compensation simplifies standard gain stages, while true differential inputs support balanced sensor or bridge interfaces when their common-mode voltage is compatible. Designers should not interpret the 30 V supply rating as permission to exceed the input common-mode range. Input protection, resistor power ratings, grounding, and feedback-network scaling must be selected independently of the amplifier's absolute supply rating.
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: MC3403PW — 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 | MC3403PWR | MC3303PWR |
|---|---|---|---|
| Package | 14-pin TSSOP | 14-pin TSSOP | 14-pin TSSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
主な差別化要因
- Four general-purpose amplifiers in one compact package （vs MC3303PWR)
- Documented 1 MHz gain-bandwidth product （vs MC3403PWR)
- Single- and dual-supply operating capability （vs MC3303PWR)
設計ノート
Place the input, feedback, and bypass components directly beside their associated MC3403PW pins. Keep each feedback loop compact to reduce parasitic feedback and improve stability, especially when the selected noise gain is high. Route sensitive input traces away from switching nodes, inductors, and high-current return paths. Use a continuous ground plane and place supply-decoupling capacitors at the device so switching current does not flow through the analog signal ground.
Do not treat the 30 V maximum supply rating as the usable input common-mode range. Before finalizing each channel, verify the input range, output swing, load, source impedance, and operating temperature against the complete manufacturer data sheet. Also check whether the circuit requires output isolation for capacitive loads. The internally compensated architecture removes the need for routine external compensation, but it does not remove the need for a stability and output-capacitance review.
Account for supply-current dissipation and heat in the analog section rather than checking only the nominal voltage. The total power dissipated by the package is the estimated sum of each amplifier's supply contribution multiplied by the applied supply voltage; calculate that sum using the maximum channel activity expected in the design. Provide copper area around the TSSOP and verify the resulting junction temperature under the worst-case supply and loading conditions.
コンプライアンス情報
The manufacturer product page and distributor records do not state the requested environmental and material compliance details for MC3403PW. Confirm the current declarations and material documentation with Texas Instruments.
