MCP607-I/SN - Dual 155 kHz CMOS Op Amp | Microchip
MPN： MCP607-I/SN ✓ 啟用中MCP607-I/SN 概覽
A CMOS operational amplifier is a voltage-feedback amplifier that uses complementary metal-oxide-semiconductor transistors to provide high input impedance, low bias current, and low power consumption. Operational amplifiers belong to the broader amplifier IC and analog signal-conditioning categories. Their principal roles include amplifying weak sensor signals, buffering voltage references, driving analog-to-digital converter inputs, and implementing filters or analog feedback loops in electronic control systems.
The MCP607 family's key characteristics include unity-gain stability, low input bias current, high open-loop gain, and rail-to-rail output swing. Its 155 kHz gain-bandwidth product supports moderate-bandwidth signal chains, while the 18.7 uA typical operating current helps limit power use in battery-operated or portable equipment. The offset voltage below 250 uV supports applications requiring low DC error when the amplifier operates near its output reference.
Microchip's advanced CMOS process provides the low bias current and rail-to-rail output behavior required for single-supply operation. Two amplifiers in one package reduce board area, and the common package simplifies component placement and inventory management. The 2.5 V minimum supply supports low-energy systems, while operation up to 6.0 V provides compatibility with conventional 3.3 V and 5 V rails. Unity-gain stability makes the device suitable for voltage followers, non-inverting amplifiers, and standard inverting amplifier configurations.
Typical uses include portable sensor interfaces, low-frequency filter stages, battery monitoring, programmable instrumentation, audio preamplification, and general-purpose analog signal conditioning. The device is particularly appropriate when low quiescent current is more important than wide bandwidth. For applications requiring substantially greater bandwidth or rail-to-rail input capability, a higher-speed amplifier family may be a better architectural fit.
When designing around the MCP607-I/SN, keep input and output signals within the amplifier's valid common-mode and output-swing limits, even though the output can swing close to the supply rails. Place input-biasing, feedback, and decoupling capacitors close to their associated pins. Avoid operating near the supply limits when maximum output swing, noise performance, or output-drive margin is important.
This product record combines manufacturer specifications, package information, sourcing guidance, replacement constraints, and application-oriented engineering notes. It also distinguishes genuine pin-compatible alternatives from higher-bandwidth or different-package devices, helping designers make a controlled replacement decision without changing the PCB footprint.
直接替換替代品，適用於 MCP607-I/SN — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MCP607-I/SN （相同外形與佔位） — 差異在於 Package, Mounting Type, Output Swing, Typical Operating Current, Amplifier Type.
MCP607-I/ST
✅ 直接替換聯絡詢價
查看資料表 →MCP607-I/SNVAO
✅ 直接替換📋 參考替代品（不在目錄中）
MCP607-I/SN 最大額定值與電氣特性
| Amplifier Type | Dual voltage-feedback operational amplifier |
| Number of Channels | 2 channels |
| Supply Voltage Range | 2.5 V to 6.0 V |
| Typical Operating Current | 18.7 uA |
| Gain-Bandwidth Product | 155 kHz |
| Typical Input Offset Voltage | <250 uV |
| Output Swing | Rail-to-rail |
| Unity-Gain Stability | Yes |
| Process Technology | Advanced CMOS |
| 封裝 | 8-pin SOIC |
| 安裝類型 | Surface mount |
| Operating Mode | Single supply |
MCP607-I/SN 8-pin soic 腳位配置指南
MCP607-I/SN（8-pin soic 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： MCP607-I/SN.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCP607-I/SN 適用於 6 應用s: Portable Sensor Signal Conditioning, Low-Power Voltage Reference Buffer, Battery Voltage Monitoring, Low-Frequency Active Filtering, Portable Audio Preamplification, Programmable Instrumentation.
Portable Sensor Signal Conditioning
The MCP607-I/SN suits low-frequency sensor front ends where every milliampere matters. Its 18.7 uA typical operating current helps constrain amplifier overhead in portable or battery-powered equipment, while the offset voltage below 250 uV limits DC error at the amplifier input. The device can buffer a resistive sensor such as a thermistor, potentiometer, or strain-gauge bridge stage before the signal reaches an ADC. Unity-gain stability simplifies follower implementation, and the 8-pin SOIC package keeps the dual circuit compact. The 155 kHz gain-bandwidth product is appropriate for slow sensor signals rather than wideband waveform capture, so designers should band-limit the path to avoid unnecessary amplification of high-frequency noise.
Low-Power Voltage Reference Buffer
The MCP607-I/SN can buffer a low-current voltage reference for use by analog-to-digital converters, data converters, or measurement circuits. Its low offset voltage below 250 uV helps preserve reference accuracy, and the rail-to-rail output allows the buffered output to approach the available supply range. The 18.7 uA typical operating current is valuable in precision instruments that spend substantial time between measurements. Because the MCP607 is unity-gain stable, it can be used as a direct voltage follower without an additional compensation network. Layout should place the reference source and bypass capacitor close to the amplifier inputs, while keeping output traces away from high-current switching nodes to preserve reference stability.
Battery Voltage Monitoring
The MCP607-I/SN is applicable to battery monitoring circuits that must operate from a low-current supply. Its 18.7 uA typical operating current adds less demand to the battery budget than a higher-current amplifier, while offset voltage below 250 uV supports accurate DC measurement near the supply rails. The rail-to-rail output is useful when the monitoring system must transmit a small measured voltage into an ADC or comparator input. With a 155 kHz gain-bandwidth product, the device is better suited to slow battery-voltage trends than to rapid pulse analysis. Design the input divider and filtering network to remain stable across temperature, and confirm that the measured range stays within the amplifier's valid common-mode and output limits.
Low-Frequency Active Filtering
The MCP607-I/SN can implement first-order and practical higher-order active filters for slow analog signals. A 155 kHz gain-bandwidth product provides useful open-loop gain and bandwidth for low-frequency filtering, while unity-gain stability supports voltage-follower-based filter stages. The rail-to-rail output helps maximize signal range in 2.5 V, 3.3 V, and 5 V systems, and the low 18.7 uA typical operating current supports compact portable instruments. Component tolerances and the amplifier's finite gain should be considered when defining stop-band rejection. Keep the feedback network compact and decouple the supply close to the device so switching or supply ripple does not dominate the filtered signal.
Portable Audio Preamplification
The MCP607-I/SN can provide modest audio preamplification in portable, microphone, or headset signal paths that do not require high bandwidth. Its rail-to-rail output supports efficient use of a low-voltage supply, and the offset voltage below 250 uV helps minimize DC offset introduced ahead of an audio converter. The dual amplifier allows separate handling of left and right channels in a single 8-pin SOIC package. The 155 kHz gain-bandwidth product is suitable for many voice-band and general audio conditioning tasks but not for high-fidelity wideband audio demanding much greater bandwidth. Input shielding, clean grounding, and careful supply decoupling are important when the microphone source is sensitive.
Programmable Instrumentation
The MCP607-I/SN fits low-power programmable measurement equipment that requires buffering between sensors, switches, or multiplexers and an ADC. Its low input bias current supports high-impedance sources, while the 18.7 uA typical operating current helps preserve instrument battery life. The amplifier's offset voltage below 250 uV supports precision DC measurements, and the dual configuration can buffer two channels or combine buffering with gain. The 155 kHz gain-bandwidth product suits slow multiplexed measurements where settling time dominates. Designers should allocate sufficient acquisition time for the amplifier to settle, verify common-mode limits for each input range, and isolate sensitive analog routing from digital control and relay-switching circuitry.
工程參考資料，適用於 MCP607-I/SN — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MCP607-I/ST | MCP607-I/SNVAO |
|---|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Number of Amplifiers | 2 channels | 2 channels | 2 channels |
| Supply Voltage Range | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V |
| Gain-Bandwidth Product | 155 kHz | 155 kHz | 155 kHz |
| Typical Operating Current | 18.7 uA | 18.7 uA | 18.7 uA |
| Typical Input Offset Voltage | <250 uV | <250 uV | <250 uV |
| Output Swing | Rail-to-rail | Rail-to-rail | Rail-to-rail |
| Unity-Gain Stability | Yes | Yes | Yes |
| Process Technology | Advanced CMOS | Advanced CMOS | Advanced CMOS |
主要差異化特點
- Lower typical operating current than the higher-speed MCP6002 family (對比MCP6002-I/SNVAO)
- Direct same-family footprint continuity (對比MCP607-I/ST)
- Dual micropower amplifier in a compact 8-pin SOIC (對比MCP607-I/SNVAO)
設計說明
Place the supply bypass capacitor directly between the MCP607-I/SN supply pin and ground, with a short, low-inductance return path. Keep input-bias resistors, feedback resistors, and compensation components close to the associated amplifier pins. For sensitive sensor inputs, route the input trace away from switching-node copper and the ground current path of the bypass capacitor.
Do not treat the rail-to-rail output specification as permission to drive every input voltage directly below the supply rail. Check the manufacturer input common-mode limits and output-swing conditions at the operating supply voltage. The MCP607-I/SN is optimized for low-frequency, low-power signal conditioning rather than high-speed operation, so excessive closed-loop bandwidth can increase noise and reduce stability margin.
Use the dual amplifier's second channel only after assigning both input pins and the supply ground correctly. An unused amplifier channel should be configured according to the manufacturer's recommendations rather than left floating. For low-level signals, use a common-ground reference, minimize parasitic resistance in the input path, and place filtering close to the source when cable or sensor noise dominates.
合規資訊
No explicit compliance declarations for the exact MCP607-I/SN orderable configuration were established from the cited manufacturer and distributor information.