MCP602-I/SN - 2.8MHz Dual CMOS Op Amp | Microchip
料号： MCP602-I/SN ✓ 量产中MCP602-I/SN 概述
An operational amplifier, or op amp, is a high-gain analog building block used to amplify or buffer a differential input. The MCP602 belongs to the CMOS operational-amplifier family, which combines low bias current, low supply current, and rail-to-rail output capability. Its place in the broader hierarchy is operational amplifier, analog amplifier, voltage-feedback amplifier, and then analog semiconductor.
Microchip's advanced CMOS process gives the MCP602 low input bias current, high open-loop gain, 2.8 MHz gain-bandwidth product, and a 2.3 V/us slew rate. Unity-gain stability supports direct use as a buffer. The dual configuration provides two independent amplifiers in one package, reducing board area for balanced filters, sensor interfaces, audio paths, and control loops. Rail-to-rail output swing maximizes usable output range on low-voltage supplies.
Typical applications include portable sensor conditioning, low-voltage audio, active filtering, sensor interfaces, industrial instrumentation, and general-purpose embedded signal processing. The 230 uA typical operating current is particularly useful in battery-powered equipment, while the below-ground common-mode input capability helps process signals that approach the negative supply rail.
Designers should keep the input common-mode and output swing limits in view, provide adequate supply decoupling, and avoid placing sensitive high-impedance inputs beside noisy switching or digital return paths. The SOIC package also requires attention to thermal performance and copper availability when operating continuously at higher frequencies or driving capacitive loads.
This product page combines manufacturer specifications, package and pinout guidance, application-focused design notes, and verified same-footprint alternatives to support faster component selection and PCB planning.
直接替换替代料： MCP602-I/SN ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MCP602-I/SN （相同外形与封装尺寸） ——差异在于 Gain-Bandwidth Product, Mounting Type, Package, Slew Rate, Typical Operating Current.
MCP602-E/SN
✅ 直接替换联系询价
查看数据手册 →MCP6002-E/SNVAO
✅ 直接替换📋 参考替代料（不在目录中）
MCP602-I/SN 最大额定值与电气特性
| Amplifier Configuration | Dual |
| Number of Amplifiers | 2 circuits |
| 工作电源电压 | 2.7 V to 5.5 V |
| Gain-Bandwidth Product | 2.8 MHz |
| Typical Operating Current | 230 uA |
| Input Offset Voltage | Less than 2 mV |
| Slew Rate | 2.3 V/us |
| Common-Mode Rejection Ratio | 90 dB |
| Input Bias Current | 60 uA |
| Unity-Gain Stability | Yes |
| Output Swing | Rail-to-rail |
| Common-Mode Input Range | Includes ground |
| 工作温度 | -40 C to +85 C |
| 封装 | 8-pin SOIC |
| 安装类型 | Surface mount |
MCP602-I/SN 引脚配置
| 引脚 1 | OUTA — Amplifier A output |
| 引脚 2 | INA- — Amplifier A inverting input |
| 引脚 3 | INA+ — Amplifier A non-inverting input |
| 引脚 4 | V- — Negative supply or ground connection |
| 引脚 5 | INB+ — Amplifier B non-inverting input |
| 引脚 6 | INB- — Amplifier B inverting input |
| 引脚 7 | OUTB — Amplifier B output |
| 引脚 8 | V+ — Positive supply connection |
典型应用
MCP602-I/SN 适用于 6 应用s: Battery-Powered Sensor Conditioning, Portable Audio Signal Chain, Low-Power Active Filtering, Industrial Instrumentation, Low-Voltage Data Acquisition, General Embedded Control Interface.
Battery-Powered Sensor Conditioning
The MCP602-I/SN fits battery-powered sensor conditioning because its 2.7 V to 5.5 V single-supply range and 230 uA typical operating current suit compact, low-energy systems. The dual amplifier can condition one sensor channel and provide a second channel for buffering or active filtering. Its below-ground common-mode input support is useful when the measured signal approaches the 0 V reference, while rail-to-rail output swing increases the usable signal range. In a typical design, one channel amplifies a bridge or resistive sensor and the other drives an ADC input. Confirm the exact common-mode and output limits at the selected supply voltage, and keep high-impedance sensor traces away from switching nodes and digital return currents.
推荐
Portable Audio Signal Chain
The MCP602-I/SN is useful in portable audio signal chains that require low supply current without sacrificing gain-bandwidth capability. Its 2.8 MHz gain-bandwidth product provides more bandwidth than strictly required by many audio paths, while the 230 uA typical operating current supports battery operation. Rail-to-rail output swing helps use the available voltage range on a 2.7 V to 5.5 V supply, and the input range extending below ground supports small bipolar signals centered near ground. The two channels can implement an active low-pass or high-pass filter and a unity-gain buffer. Use stable feedback networks, maintain adequate output-load capability, and verify distortion and output-swing behavior in the final audio channel.
推荐
Low-Power Active Filtering
The MCP602-I/SN fits unity-gain and active-filter designs requiring stable operation from a 2.7 V to 5.5 V supply. Its 2.8 MHz gain-bandwidth product supplies useful bandwidth for audio-band and general-purpose filters, while unity-gain stability allows direct voltage-following use. The dual package supports two filter sections without requiring separate amplifiers. For an Sallen-Key or multiple-feedback filter, calculate component tolerances against the required cutoff frequency and passband gain, then verify noise and phase behavior over the intended signal range. Decoupling should be placed close to the supply pins, and feedback components should remain physically separated from sensitive input traces to reduce parasitic coupling.
推荐
Industrial Instrumentation
The MCP602-I/SN supports low-voltage industrial instrumentation when the signal bandwidth is moderate and low power is valuable. Its -I grade covers an operating temperature range of -40 C to +85 C, while the 230 uA typical operating current and 2.8 MHz gain-bandwidth product support signal conditioning close to the sensor. The dual configuration can amplify and buffer separate measurement channels. Its below-ground input capability is helpful for bipolar sensor signals referenced to analog ground, while rail-to-rail output improves utilization of low-voltage supplies. Validate the full input/output ranges, electromagnetic environment, and isolation strategy for the deployed equipment, and provide local supply bypassing to minimize conducted noise.
推荐
Low-Voltage Data Acquisition
The MCP602-I/SN can serve as the analog front end for a compact data-acquisition system operating from a 2.7 V to 5.5 V supply. Its two channels can condition and buffer two low-bandwidth inputs before conversion, reducing loading on sensors and providing rail-to-rail output drive. The 2.8 MHz gain-bandwidth product is suitable for many precision and general-purpose acquisition tasks, while the 230 uA typical operating current helps manage total system demand. Select external resistor and capacitor values for the desired gain and bandwidth, observe the ADC input range, and account for offset and bias-current error. Place the amplifiers close to the ADC inputs to avoid adding noise or capacitive loading between amplification and conversion.
推荐
General Embedded Control Interface
The MCP602-I/SN is appropriate for general embedded control interfaces that need analog buffering near a microcontroller or sensor node. It can convert a bipolar or near-ground signal into a voltage that better matches the controller's ADC range, and its second channel can provide a reference buffer or auxiliary filter. The single 2.7 V to 5.5 V operation simplifies integration with common embedded supplies, and the 230 uA typical current is useful in power-constrained nodes. Avoid using the amplifier where faster settling, lower noise, higher output current, or rail-to-rail input is required; those demands call for a different device family. Establish the signal bandwidth, output impedance, and shutdown strategy before finalizing the analog front end.
推荐
推荐产品汇总
工程参考数据： MCP602-I/SN ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MCP602-E/SN | MCP6002-E/SNVAO |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-pin SOIC | 8-pin SOIC - same | 8-pin SOIC - same |
| Amplifier Configuration | Dual | Dual | Dual |
关键差异点
- Higher gain-bandwidth capability in the same MCP602 dual-amplifier footprint （对比 MCP6002-E/SNVAO)
- Same core electrical performance with a selectable temperature-grade ordering code （对比 MCP602-E/SN)
- Two independent amplifiers for compact dual-channel signal paths （对比 MCP6002-E/SNVAO)
设计说明
Place the input, output, feedback, and decoupling networks close to the MCP602-I/SN pins. Connect the supply bypass capacitor directly between the V+ and V- pins, and route the V- connection as a low-impedance return rather than sharing a narrow path with motor, relay, or switching-current returns. Keep sensitive input traces away from the SOIC power and adjacent digital signals.
Verify the closed-loop bandwidth and phase margin for the selected gain, component tolerances, and capacitive load rather than treating the 2.8 MHz gain-bandwidth product as a guaranteed usable signal bandwidth. The MCP602-I/SN is unity-gain stable, which permits straightforward buffering, but high noise gain reduces bandwidth and can magnify noise at the input. Add an isolation resistor between the amplifier and unusually capacitive loads when the output stage requires it.
Do not assume that rail-to-rail output automatically means rail-to-rail input or unrestricted common-mode operation. Although the input range extends below ground, check the manufacturer limits for each supply voltage and the output-current condition. Also account for input offset voltage below 2 mV and the 60 uA bias-current figure when designing very high-impedance sources, because those errors can dominate the signal at the amplifier input.
合规信息
No definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified in the cited product listings. The -I industrial temperature grade should not be treated as automotive AEC-Q100 qualification.