MCP617-I/SN - Dual 190kHz Micropower Op Amp | Microchip
MPN: MCP617-I/SN ✓ AktifMCP617-I/SN Ringkasan
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its two inputs while using feedback to set the closed-loop gain. The MCP617 belongs to the low-dropout-independent operational-amplifier hierarchy, where micropower rail-to-rail CMOS devices support battery-powered instrumentation, sensor interfaces, and precision analog signal conditioning.
Key features include a 190 kHz gain-bandwidth product, low typical operating current of 19 µA, typical input offset current of 0.3 nA, and maximum input offset voltage of ±150 µV. Its 100 dB typical common-mode rejection ratio helps suppress equal-mode signals when the amplifier processes small differential voltages. A typical slew rate of 0.0800 V/µs provides useful bandwidth for low-frequency precision applications.
The MCP617 uses advanced CMOS technology to combine low bias current, high open-loop gain, and high-speed operation. It is unity-gain stable, allowing direct use as a voltage follower without a compensation network. The input common-mode range and output swing characteristics should be checked against the application’s supply voltage when operating near either rail.
Typical applications include low-power sensor conditioning, portable instrumentation, battery-operated data acquisition, current sensing, and general-purpose analog buffering. Two amplifiers in one package can implement differential, filtering, or gain stages while conserving board area. The 2.3 V to 5.5 V operating range suits systems powered from single-cell lithium-ion cells, regulated low-voltage rails, and mixed analog supply architectures.
Designers should verify input and output common-mode limits, stable capacitor selection, and output-current requirements for the intended load. Because the package is an 8-pin SOIC rather than a lead-free-enhanced package, assembly temperature and soldering-process compatibility should be reviewed before high-volume production.
This product page combines the manufacturer’s principal electrical characteristics with package guidance, application analysis, comparison parameters, and practical design considerations. It supports engineers evaluating the MCP617-I/SN for a low-voltage, low-power, rail-to-rail dual operational-amplifier design.
Pilihan pengganti yang segera untuk MCP617-I/SN — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Tiada pilihan pengganti yang segera untuk produk ini.
Minta AlternatifMCP617-I/SN Penilaian maksimum & Ciri-ciri Elektrik
| Number of Amplifiers | 2 circuits |
| Operating Supply Voltage Range | 2.3 V to 5.5 V |
| Gain-Bandwidth Product | 190 kHz |
| Typical Operating Current | 19 µA |
| Maximum Input Offset Voltage | ±150 µV |
| Typical Input Offset Current | 0.3 nA |
| Common-Mode Rejection Ratio | 100 dB |
| Typical Slew Rate | 0.0800 V/µs |
| Typical Input Noise | 2.2 µVP-P to 10 Hz |
| Output Swing | Rail-to-rail |
| Gain Stability | Unity-gain stable |
| Gambaran Suhu Operasi | -40 °C to +85 °C |
| Kemasan | 8-pin SOIC |
| Process Technology | CMOS |
Panduan Konfigurasi Pin MCP617-I/SN 8-pin soic
Konfigurasi pin untuk MCP617-I/SN (8-pin soic pakai). Komponen analog ini mempunyai pin masukan, keluaran, dan kuasa. Rujuk dokumen pengeluar untuk konfigurasi pengecualian, pemulihan, dan pin aktifkan. Ideal untuk pengawasan isyarat dan litar pengukur.
Tiada data garisan pin yang diperoleh untuk MCP617-I/SN.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
MCP617-I/SN patut untuk 6 aplikasis: Battery-Powered Sensor Conditioning, Portable Medical Signal Acquisition, Low-Power Data Acquisition, Precision Current Sensing, Industrial Process Signal Buffering, Low-Voltage Audio Buffering.
Battery-Powered Sensor Conditioning
The MCP617-I/SN fits low-power sensor interfaces because its 2.3 V to 5.5 V operating range accommodates single-cell and other low-voltage supplies, while its typical operating current is only 19 µA. Two amplifiers in the 8-pin SOIC package can provide gain and active filtering around a resistive or bridge-based sensor. The ±150 µV maximum input offset voltage and typical 0.3 nA input offset current help preserve small-signal accuracy, although input bias current and common-mode limits should be checked against the sensor impedance.
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Portable Medical Signal Acquisition
The MCP617-I/SN is appropriate for portable biomedical acquisition stages requiring low supply voltage and low amplifier current. Its 190 kHz gain-bandwidth product is suitable for physiological signals and slow instrumentation rather than high-bandwidth diagnostic front ends, while the rail-to-rail output improves utilization of a 2.3 V to 5.5 V supply. The 19 µA typical operating current reduces power demand, and the ±150 µV maximum offset supports precise low-level conditioning. Medical designs must also apply their own isolation, safety, and signal-integrity requirements.
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Low-Power Data Acquisition
The MCP617-I/SN can condition inputs in compact, battery-operated data-acquisition systems because it combines two amplifiers, a 19 µA typical operating current, and a single 2.3 V to 5.5 V supply capability. One channel can amplify a sensor while the second performs filtering, buffering, or level translation within the available supply range. Its 100 dB common-mode rejection helps reject equal-mode interference in instrumentation systems. The 190 kHz bandwidth should be compared with the highest signal and filter corner frequency to prevent inadequate settling or phase margin.
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Precision Current Sensing
The MCP617-I/SN can amplify the small voltage produced across a low-value shunt resistor in portable current-measurement circuits. Its maximum input offset voltage of ±150 µV and typical input offset current of 0.3 nA limit errors when source impedance is moderate, while unity-gain stability simplifies buffered transimpedance-style stages. The 19 µA operating current is well suited to battery-operated meters, and the 2.3 V minimum supply supports low-energy systems. Shunt heating, common-mode voltage, amplifier input limits, and Kelvin connections remain important system-level checks.
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Industrial Process Signal Buffering
The MCP617-I/SN is suitable for low-voltage industrial process signals when the selected input and output remain within the device’s 2.3 V to 5.5 V supply range. Its dual configuration can buffer two related channels or form an instrumentation stage, while the 190 kHz gain-bandwidth product is adequate for many slow process variables. The typical 0.3 nA input offset current is useful with high-impedance sources, and the 100 dB common-mode rejection can improve rejection of common-mode noise. Field designs should still verify surge protection, isolation, grounding, and channel-to-channel isolation requirements.
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Low-Voltage Audio Buffering
The MCP617-I/SN can serve as a low-level audio buffer in portable or low-voltage signal paths. Its rail-to-rail output can approach the available supply limits, while the two amplifiers permit separate buffering or filtering functions in one 8-pin SOIC package. The 19 µA typical operating current is valuable in battery-operated audio equipment, and unity-gain stability simplifies direct follower configurations. Because the 190 kHz gain-bandwidth product is modest, the device is better suited to low-frequency audio or instrumentation paths than to wideband audio stages requiring substantially greater slew rate and bandwidth.
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Data referensi kejuruteraan untuk MCP617-I/SN — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini |
|---|---|
| Brand | Microchip Technology |
| Package | 8-pin SOIC |
| Number of Amplifiers | 2 circuits |
| Operating Supply Voltage Range | 2.3 V to 5.5 V |
| Gain-Bandwidth Product | 190 kHz |
| Typical Operating Current | 19 µA |
| Maximum Input Offset Voltage | ±150 µV |
| Typical Input Offset Current | 0.3 nA |
| Common-Mode Rejection Ratio | 100 dB |
| Typical Slew Rate | 0.0800 V/µs |
| Output Swing | Rail-to-rail |
| Gain Stability | Unity-gain stable |
Penyeberangsung Jelas
- Low operating current for a dual amplifier (vsMCP617T-I/SN)
- Precision offset performance for low-level signals (vsTLC4502CD)
- Low-voltage operation with rail-to-rail output (vsTLC4502CD)
Catatan Desain
Confirm the complete circuit’s current draw rather than using the 19 µA operating-current figure alone. Sensor bias networks, reference circuits, load currents, and protection leakage can dominate battery life. Also verify that the input common-mode voltage and required output swing remain valid throughout the 2.3 V to 5.5 V supply range, especially when the supply can fall near the lower operating limit.
Place the device close to the protected signal source and place input and output bypass capacitors near their associated pins. Keep sensitive input traces short, avoid routing them beneath noisy power or digital signals, and use a continuous ground reference where practical. For high-impedance sensors, cleanliness and leakage control can be as important as the nominal 0.3 nA input offset current.
Do not assume that rail-to-rail output means the input common-mode range also reaches both rails. Check the input range and output headroom in the Microchip MCP617 datasheet for the exact supply voltage. Likewise, confirm loop stability with the actual source impedance, load capacitance, and feedback network; unity-gain stability does not remove all real-world stability constraints.
Maklumat Kesediaan
No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were identified for this ordering code. The AEC-Q100 field is not applicable because this is an operational amplifier rather than an automotive-qualified device.