MCP604-E/ST - 4-Channel 2.8MHz CMOS Op Amp | Microchip
部品番号: MCP604-E/ST ✓ 生産中MCP604-E/ST 概要
A CMOS operational amplifier is a voltage-controlled, differential active device used to amplify voltage differences, buffer analog signals, and implement feedback-based control and filtering circuits. The MCP604 belongs to the broader operational-amplifier hierarchy, where it combines low bias current, low quiescent current, and rail-to-rail operation. Its four amplifiers share one package, making it useful when a design needs several similar analog channels without allocating four separate packages.
The MCP604-E/ST provides 2.8 MHz typical gain-bandwidth, 2.3 V/µs slew rate, 75 dB minimum common-mode rejection, and 2 mV typical input-offset voltage. Rail-to-rail output and input stages support signal levels extending toward the supply rails, while 230 µA typical operating current per amplifier limits power demand in battery-operated or multi-channel systems. Unity-gain stability also simplifies direct buffering and basic gain configurations.
The advanced CMOS implementation supports low bias current, high open-loop gain, and low power consumption. Because all four channels share one package, supply routing and bypassing must support the aggregate channel load. Decoupling capacitance should be placed close to the power pins, and sensitive analog inputs should remain short and away from switching nodes. The device is intended for precision control and general-purpose analog processing rather than high-speed video or high-voltage operation.
Typical applications include sensor-signal conditioning, current measurement, analog filtering, voltage buffering, instrumentation, and precision control loops. Four integrated channels can support repeated sensing, multi-axis control, or parallel signal conditioning while simplifying assembly. The low typical operating current is particularly useful in portable instrumentation, while the 6 V maximum supply supports conventional 3.3 V and 5 V analog systems.
The main design consideration is confirming that the input and output common-mode ranges cover the actual signal excursion. Rail-to-rail operation reduces headroom concerns, but output current, load capacitance, noise, and output-voltage limits still require verification for the chosen gain and frequency. Input offset voltage and bias current should also be included in error budgets for precision measurements.
This page combines verified manufacturer and distributor information with same-package drop-in alternatives, parameter comparisons, application guidance, and practical design notes. The alternatives are presented as footprint-compatible engineering options, but production use still requires validation of supply voltage, temperature grade, electrical limits, and lifecycle status against the original design requirements.
ドロップイン代替品: MCP604-E/ST — 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。
MCP604-E/STVAO
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCP604T-E/STVAO
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCP6004-I/ST
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCP6004T-I/ST
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCP604-E/SL
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCP604-E/ST 最大定格＆電気的特性
| Amplifier Type | Quad CMOS operational amplifier |
| Number of Channels | 4 channels |
| Supply Voltage Range | 2.7 V to 6 V |
| Gain-Bandwidth Product | 2.8 MHz typical |
| Slew Rate | 2.3 V/µs |
| Typical Operating Current | 230 µA per amplifier |
| Input Offset Voltage | 2 mV |
| Common-Mode Rejection Ratio | 75 dB minimum |
| Input Common-Mode Range | Rail-to-rail, including ground |
| Output Swing | Rail-to-rail |
| Gain Configuration | Unity-gain stable |
| パッケージ | 14-pin TSSOP |
| 実装タイプ | Surface mount |
| Process Technology | Advanced CMOS |
| Lead Time | 2 weeks standard lead time |
| ライフサイクル状態 | Active |
| RoHS ステータス | Compliant |
| Lead-Free Status | Lead-free |
MCP604-E/ST 14-pin tssop ピン配置ガイド
MCP604-E/ST (14-pin tssop 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: MCP604-E/ST.
詳細は データシート をご参照ください。
主な用途
MCP604-E/ST の用途: 6 件s: Sensor Signal Conditioning, Current Sensing, Precision Analog Filtering, Voltage Buffering, Precision Control Loops, Portable Instrumentation.
Sensor Signal Conditioning
The MCP604-E/ST is well suited to conditioning four sensor channels because each amplifier combines a 2.8 MHz typical gain-bandwidth product with 230 µA typical operating current. The four amplifiers can amplify weak sensor outputs, buffer high-impedance sources, or implement active filters without requiring four separate packages. Rail-to-rail input operation including ground helps preserve usable signal range in low-voltage systems, while the 2.7 V to 6 V supply range supports 3.3 V and 5 V designs. Designers should still include the amplifier's 2 mV typical input-offset voltage in the measurement error budget and verify that the selected gain produces acceptable bandwidth and output swing.
おすすめ
Current Sensing
The MCP604-E/ST can serve as a transimpedance or voltage buffer in current-sensing circuits where low power and multiple analog channels are useful. Its 2.8 MHz typical gain-bandwidth provides useful bandwidth for moderate-speed measurements, while 230 µA typical operating current per amplifier limits the penalty of keeping four channels active. Rail-to-rail input and output stages can improve utilization of a 3.3 V or 5 V supply. The practical trade-off is that input offset voltage, input bias current, and output settling affect accuracy, so resistor and capacitor values must be checked with the complete shunt and amplifier specifications.
おすすめ
Precision Analog Filtering
Active filters can use the unity-gain-stable MCP604-E/ST to implement gain, low-pass, or multi-stage analog conditioning. Its 2.8 MHz typical gain-bandwidth and 2.3 V/µs slew rate are sufficient for many low- and medium-frequency control and measurement channels, while four amplifiers allow a filter bank or repeated signal processing stages in one 14-pin TSSOP. Rail-to-rail output swing is useful when filter signals occupy much of the available supply range. Component tolerances, amplifier noise, offset, and the finite bandwidth must be included in the filter transfer-function design.
おすすめ
Voltage Buffering
The MCP604-E/ST can buffer up to four voltage sources without introducing the complexity of a discrete transistor buffer at each node. Its unity-gain stability supports direct voltage-follower use, while the 2.8 MHz typical gain-bandwidth and 2.3 V/µs slew rate provide sufficient performance for low-frequency sensor, control, and instrumentation signals. Rail-to-rail input and output behavior reduces the required headroom around ground and the upper supply rail. Buffer stability should be checked against capacitive loading, and the 230 µA typical current per amplifier should be included in the system's power budget.
おすすめ
Precision Control Loops
In precision control and feedback systems, the MCP604-E/ST provides four low-power amplifier channels with 2.8 MHz typical gain-bandwidth and rail-to-rail operation. The bandwidth can support servo, actuator-control, and setpoint-conditioning loops operating below the amplifier's practical closed-loop limits, while 75 dB minimum common-mode rejection helps reject common-mode disturbance on feedback signals. The principal trade-off is the 2 mV typical input-offset voltage, which can affect the control setpoint or error amplifier. System-level accuracy should therefore be calculated with offset, bias current, output swing, and load effects included.
おすすめ
Portable Instrumentation
The MCP604-E/ST is appropriate for portable instrumentation where four measurement or control channels must be packaged efficiently and powered from a limited source. Each amplifier has a typical operating current of 230 µA, and the device operates from 2.7 V to 6 V, allowing use with low-voltage battery-regulated rails. Four integrated channels reduce component count and simplify routing for sensor amplifiers, buffer stages, and active filters. Because no numeric price was supplied in the verified data, cost should be obtained through a current distributor quote, while battery life should be evaluated with actual duty cycle and load behavior.
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: MCP604-E/ST — 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 | MCP604-E/STVAO | MCP604T-E/STVAO | MCP6004-I/ST | MCP6004T-I/ST |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin TSSOP | 14-pin TSSOP | 14-pin TSSOP | 14-pin TSSOP | 14-pin TSSOP |
| Number of Channels | 4 channels | 4 channels | 4 channels | 4 channels | 4 channels |
主な差別化要因
- Four amplifiers share one 14-pin TSSOP package （vs MCP6004-I/ST)
- Low-power operation with 230 µA typical current per amplifier （vs MCP604-E/STVAO)
- Rail-to-rail operation includes the ground rail （vs MCP604T-E/STVAO)
設計ノート
Place the supply bypass capacitor immediately beside the MCP604-E/ST power pins and connect it to a low-impedance ground plane. Four amplifier channels share the package supply pins, so transient demand is the aggregate of all active channels rather than one 230 µA channel. Route sensitive inputs away from power converters, clock lines, and high-current return paths. The verified data confirms a 14-pin TSSOP package, but the authoritative pin numbers and exposed-pad arrangement must be taken from the current Microchip package drawing before layout release.
Use short, guarded traces for high-impedance sensor inputs because input bias current and leakage can create measurable voltage errors. The MCP604-E/ST is specified with 2 mV typical input-offset voltage and 75 dB minimum common-mode rejection, but neither rating removes errors caused by leakage or inadequate grounding. If a source impedance is high, calculate the bias-current-induced error against the actual input-bias-current limit and consider guarding or a nearby low-input-bias-current alternative.
Design the 2.7 V to 6 V supply so that transients remain below the absolute maximum rating and the signal does not exceed the amplifier's common-mode range. Rail-to-rail input and output operation improves low-voltage headroom, but it does not remove output-current, output-voltage, or load limitations. For a 3.3 V system, verify that the measured output can reach the required logic or sensor levels while maintaining the intended gain and load.
Do not substitute the MCP604-E/SL or MCP6024-E/P ordering options without verifying their package and pinout. The confirmed MCP604-E/ST is a 14-pin TSSOP device, and a shared amplifier function does not prove a shared land pattern. Likewise, suffix changes such as T, I, or VAO can encode temperature, packaging, or production distinctions. Before approving any replacement, compare the ordering tables, pin functions, common-mode range, offset, bandwidth, bias current, and temperature grade.
コンプライアンス情報
RoHS compliance and lead-free status are explicitly reported in the verified component data. The supplied data does not establish REACH, halogen-free, AEC-Q100, or conflict-minerals status.
