MCP602-I/ST - 2.8 MHz Dual CMOS Op Amp | Microchip
部品番号: MCP602-I/ST ✓ 生産中MCP602-I/ST 概要
An operational amplifier, or op amp, is a voltage-controlled differential amplifier whose inverting and non-inverting inputs determine an amplified output. In the broader electronics hierarchy, an op amp belongs to the linear amplifier and analog integrated-circuit families, where it functions as a core building block for sensor interfaces, filters, buffers, comparators, and gain stages. The dual MCP602 integrates two amplifier channels into one package, reducing component count while retaining independent signal paths.
The MCP602-I/ST combines a 2.8 MHz typical gain-bandwidth product with a 230 uA typical operating current per amplifier. Its rail-to-rail output allows the output voltage to approach the supply limits, which is useful when the usable signal range must be maximized in low-voltage systems. The input offset voltage is specified below 2 mV, while the device offers a typical CMRR of 90 dB and a typical slew rate of 2.3 V/us. Unity-gain stability supports straightforward voltage-follower and non-inverting amplifier configurations.
The device uses advanced CMOS technology to balance speed, low bias current, high open-loop gain, and rail-to-rail output swing. Its 2.7 V minimum supply permits battery-powered operation, and its 5.5 V maximum supply supports conventional 3.3 V and 5 V rails. The dual configuration can be used for two independent amplifier channels, a differential amplifier, an instrumentation-style front end, or a combined filter and buffer. A bypass capacitor close to the supply pins remains essential for stable operation and low-noise performance.
Typical applications include low-power sensor signal conditioning, battery-operated instrumentation, audio preamplification, active filtering, and general-purpose dual-amplifier circuits. The MCP602-I/ST is particularly suitable where two low-power amplifier channels are needed without allocating two separate packages. Designers should verify signal bandwidth, output-current requirements, input common-mode range, and stability requirements against the manufacturer datasheet for the selected operating point.
The primary design trade-off is speed versus power: the 2.8 MHz gain-bandwidth product is sufficient for many general-purpose analog blocks, but it is not intended for high-frequency video, high-speed instrumentation, or demanding precision applications. Keep input and output routing short, use stable compensation for capacitive loads, and avoid placing the amplifier where its 2.3 V/us typical slew rate limits large-signal settling.
This page combines verified manufacturer and distributor information with package-specific pin assignment, design guidance, application analysis, and drop-in replacement screening. It distinguishes verified electrical characteristics from parameters that still require confirmation from the complete manufacturer datasheet, helping engineers make a more defensible low-power analog design decision.
ドロップイン代替品: MCP602-I/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。
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: MCP602-I/ST （同一形状・フットプリント） — 相違点: Gain-Bandwidth Product, Package.
MCP602-E/ST
✅ 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 →MCP602-I/ST 最大定格＆電気的特性
| Amplifier Configuration | 2 channels |
| Product Type | CMOS operational amplifier |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Gain-Bandwidth Product | 2.8 MHz typical |
| 静止電流 | 230 uA typical per amplifier |
| Input Offset Voltage | Less than 2 mV |
| Input Bias Current | 60 uA maximum |
| Common-Mode Rejection Ratio | 90 dB typical |
| Slew Rate | 2.3 V/us typical |
| Output Swing | Rail-to-rail |
| Unity-Gain Stability | Stable |
| 動作温度範囲 | -40 C to +85 C |
| パッケージ | 8-TSSOP |
| Package Width | 4.40 mm |
| 実装タイプ | Surface mount |
| RoHS ステータス | unknown |
| REACH Status | unknown |
MCP602-I/ST ピン構成
| ピン 1 | OUTA — Amplifier A output |
| ピン 2 | INA- — Amplifier A inverting input |
| ピン 3 | INA+ — Amplifier A non-inverting input |
| ピン 4 | V- — Negative supply or ground connection |
| ピン 5 | INB+ — Amplifier B non-inverting input |
| ピン 6 | INB- — Amplifier B inverting input |
| ピン 7 | OUTB — Amplifier B output |
| ピン 8 | V+ — Positive supply connection |
主な用途
MCP602-I/ST の用途: 6 件s: Battery-Powered Sensor Conditioning, Low-Power Audio Preamplification, Precision Active Filtering, Data Acquisition and Buffering, Industrial Control Signal Interface, Portable Instrumentation.
Battery-Powered Sensor Conditioning
The MCP602-I/ST fits low-energy sensor interfaces because it operates from a single 2.7 V to 5.5 V supply and consumes only 230 uA typical current per amplifier. Two independent channels can amplify or buffer two sensor signals without requiring two separate packages, reducing board area and power. Its rail-to-rail output is valuable when the conditioned signal must span much of a low-voltage supply range. Place the amplifier close to the sensor connector and provide local supply bypassing to minimize noise pickup. The primary limitation is bandwidth: the 2.8 MHz gain-bandwidth product suits general-purpose sensors rather than high-speed sensing, while the 2.3 V/us slew rate may restrict large-signal settling.
おすすめ
Low-Power Audio Preamplification
The dual MCP602-I/ST can provide two low-noise signal-conditioning channels in portable audio equipment operating from a 3 V or 5 V rail. Its low 230 uA typical operating current per amplifier reduces the load on a battery, while the rail-to-rail output maximizes usable signal amplitude at low supply voltages. One channel can amplify a microphone or line input and the other can provide gain or buffering before an ADC. Confirm that the input common-mode range covers the source amplitude and verify noise performance against the manufacturer characterization data. The 2.8 MHz bandwidth is adequate for many voice and general audio blocks, but it is not a substitute for a dedicated wideband audio amplifier.
おすすめ
Precision Active Filtering
The MCP602-I/ST is suitable for first-order or modest-bandwidth active filters built around its dual amplifier channels. Its 2.8 MHz typical gain-bandwidth product leaves useful closed-loop bandwidth above audio and general control frequencies, while unity-gain stability simplifies voltage-follower and non-inverting topologies. A second channel can implement an inverter, buffer, or another filter section. Component tolerances and the amplifier's finite gain-bandwidth and output-current capability determine the achievable accuracy and slew response. Validate the filter response across temperature and supply ranges with SPICE and bench measurements. The 230 uA typical current per channel also makes the device appropriate for compact, battery-powered filter blocks that do not require megahertz-wide precision performance.
おすすめ
Data Acquisition and Buffering
The MCP602-I/ST can buffer sensor outputs and drive inputs of a moderately fast data-acquisition system through its two integrated channels. Rail-to-rail output operation helps preserve ADC input range in 2.7 V to 5.5 V systems, and the low bias current is useful for high-impedance sources. One amplifier channel can buffer a sensor while the other can amplify, invert, or filter the result. The design must account for the 2.8 MHz gain-bandwidth product and 2.3 V/us typical slew rate when setting sample rates and settling time. Confirm input bias-current effects, output-capacitance stability, and common-mode limits from the manufacturer datasheet before using the device with high-impedance or rapidly changing sources.
おすすめ
Industrial Control Signal Interface
The MCP602-I/ST can interface low-level control, feedback, and sensor signals in compact industrial equipment where a single 5 V rail is common. Its -40 C to +85 C operating range covers many indoor industrial environments, and the dual channel provides independent amplification or active filtering without doubling the package count. The rail-to-rail output allows the amplifier to operate near the supply limits, which can simplify signal-range planning. The circuit should still include local bypassing, short feedback routes, and protection against transients or inputs outside the 2.7 V to 5.5 V supply range. For precision measurement, verify offset, bias current, CMRR, and error over temperature rather than relying only on the typical values.
おすすめ
Portable Instrumentation
The MCP602-I/ST is useful in handheld meters and portable test equipment where two low-power analog channels are needed. Operating from 2.7 V to 5.5 V supports single-cell-derived and conventional 3.3 V or 5 V power systems, while 230 uA typical current per amplifier limits battery consumption. The two channels can handle separate sensor inputs or form a buffered differential measurement arrangement. Its 2.8 MHz typical gain-bandwidth product is sufficient for many low-frequency measurements, but precision and high-speed applications require careful error-budget analysis. Use low-leakage resistors where source impedance is high, provide a stable reference for ratiometric measurements, and route sensitive input nodes away from switching supplies and digital peripherals.
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: MCP602-I/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 | MCP602-E/ST |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 8-TSSOP | 8-TSSOP |
| Amplifier Configuration | Dual | Dual |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Gain-Bandwidth Product | 2.8 MHz typical | 2.8 MHz typical |
| Quiescent Current | 230 uA typical per amplifier | 230 uA typical per amplifier |
| Input Offset Voltage | Less than 2 mV | Less than 2 mV |
| Slew Rate | 2.3 V/us typical | 2.3 V/us typical |
主な差別化要因
- Two independent amplifiers in one compact package （vs MCP602-E/ST)
- Low operating current for dual-channel analog conditioning （vs MCP602-E/ST)
- Rail-to-rail output from a 2.7 V minimum supply （vs MCP602-E/ST)
設計ノート
Place a local bypass capacitor at each supply connection and connect it to a low-impedance ground plane. The exact capacitance and ESR range must be selected from the complete Microchip MCP602 manufacturer datasheet because they were not present in the verified excerpts. Keep the V+ and V- routes short, especially when the amplifier drives a capacitive load. The device's 230 uA typical current per amplifier is suitable for low-power operation, but external divider currents and feedback networks can dominate the complete circuit's supply consumption.
Route the two amplifier channels to minimize coupling between high-impedance inputs and outputs. Keep each INA+ and INB+ node short, avoid running input traces beside OUTA or OUTB, and place input-biasing resistors close to the amplifier pins. The 2.8 MHz gain-bandwidth product can amplify small parasitic feedback loops. Ground the bypass return directly beneath the package when practical, and avoid creating a large copper loop between the two supply pins and the system ground.
Do not treat rail-to-rail output as proof that the input common-mode range extends across every supply condition. Verify the input common-mode limits, output-current capability, and stable-load conditions in the complete manufacturer datasheet. Also distinguish the 2.8 MHz gain-bandwidth product from the 2.3 V/us slew rate: the latter can limit large-signal settling even when the small-signal bandwidth appears adequate.
For low-frequency precision signals, use resistor networks that produce manageable noise and resistance values without excessive power dissipation. At higher frequencies, check closed-loop stability and gain against the 2.8 MHz gain-bandwidth product. If the output drives a long cable, isolation resistance, capacitive loading, or protection capacitance, add an appropriate output isolation resistor and validate the response in hardware because long capacitive loads can impair stability.
コンプライアンス情報
The provided verified search results do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements for MCP602-I/ST. The device is a general-purpose operational amplifier, so AEC-Q100 is marked not_applicable rather than qualified.
