MCP601-I/SN - 2.8 MHz Low-Power Op Amp | Microchip
N.º da peça: MCP601-I/SN ✓ AtivoMCP601-I/SN Visão geral
An operational amplifier is a voltage-controlled differential amplifier used to amplify, filter, buffer, or compare analog signals. In the signal-chain hierarchy, the MCP601 belongs to the operational-amplifier family, which falls within analog amplifier ICs and broader analog signal-processing systems. Its CMOS implementation supports low input bias current and low static power while maintaining high open-loop gain and rail-to-rail output capability.
Key electrical characteristics include a 2.8 MHz gain-bandwidth product, 230 uA typical operating current, an offset voltage below 2 mV, and a 2.7 V to 5.5 V single-supply range. Rail-to-rail output swing allows the amplifier to approach the supply rails under suitable load and output-voltage conditions. The 8-pin SOIC package supports conventional surface-mount assembly and provides separate positive-input, negative-input, output, supply, and ground connections.
The advanced CMOS process combines low power consumption with high-speed operation and high open-loop gain. Low input bias current is especially useful when the amplifier is driven by high-impedance sensors or bias networks because it reduces loading-induced errors. The 2.8 MHz gain-bandwidth product is appropriate for general-purpose signal conditioning, audio preamplification, active filtering, and instrumentation rather than high-speed precision applications requiring much wider closed-loop bandwidth.
Typical uses include portable sensor interfaces, industrial process-control modules, low-power battery-operated equipment, data-acquisition systems, test equipment, and low-end audio circuits. In a sensor interface, the MCP601 can buffer a high-impedance source before conversion by an ADC. In an active filter, its bandwidth provides useful operating range at moderate signal frequencies. In audio equipment, rail-to-rail output can improve available output swing compared with a fixed-headroom implementation.
Design the input network and output load carefully because rail-to-rail output behavior does not eliminate all input common-mode limitations or guarantee maximum swing into every load. Confirm settling time, output-current capability, noise, and stability against the required signal bandwidth. Place the device close to its bypass capacitors and route supply and ground returns to minimize high-frequency impedance and unwanted coupling.
This page combines the MCP601-I/SN electrical specifications, manufacturer documentation, application guidance, and verified drop-in replacement information to support faster component selection and PCB-level design decisions.
Alternativas drop-in para MCP601-I/SN — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MCP601-I/SN (mesmo formato e footprint) — diferindo em Package, Gain-Bandwidth Product, Mounting Type, Supply Voltage Range, Typical Operating Current.
MCP601-E/SN
✅ Drop-InConsulte o preço
Ver ficha técnica →MCP601-I/SN Classificações máximas e características elétricas
| Amplifier Type | Single general-purpose operational amplifier |
| Gain-Bandwidth Product | 2.8 MHz |
| Typical Operating Current | 230 uA |
| Typical Offset Voltage | Less than 2 mV |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Output Swing | Rail-to-rail |
| Number of Circuits | 1 circuit |
| Process Technology | Advanced CMOS |
| Encapsulamento | 8-pin SOIC, 3.9 mm width class |
| Tipo de montagem | Surface mount |
Configuração de pinos do MCP601-I/SN
| Pino 1 | NC — Not connected (per datasheet) |
| Pino 2 | IN- — Inverting input |
| Pino 3 | IN+ — Non-inverting input |
| Pino 4 | V- — Negative supply or ground |
| Pino 5 | NC — Not connected (per datasheet) |
| Pino 6 | OUT — Amplifier output |
| Pino 7 | V+ — Positive supply |
| Pino 8 | NC — Not connected (per datasheet) |
Aplicações típicas
MCP601-I/SN é adequado para 6 aplicaçãos: Portable Sensor Signal Conditioning, Industrial Process-Control Signal Conditioning, Battery-Powered Data Acquisition, Low-End Audio Preamplifier, Active Filters and Signal Conditioning, Test and Measurement Buffering.
Portable Sensor Signal Conditioning
The MCP601-I/SN fits portable sensor front ends because its low bias current minimizes loading of high-impedance sensing elements, while its 230 uA typical operating current supports battery-operated operation. Place it as a voltage follower or non-inverting amplifier ahead of an ADC, allowing the sensor source to retain more of its intended amplitude. The 2.8 MHz gain-bandwidth product is substantially higher than the signal bandwidth of many temperature, pressure, and chemical sensors, so the amplifier can provide useful closed-loop bandwidth without operating at a higher quiescent-current level.
Recomendado
Industrial Process-Control Signal Conditioning
The MCP601-I/SN is appropriate for general-purpose process-control modules that scale, buffer, or filter low-level sensor signals. Its 2.8 MHz gain-bandwidth product supports moderate-bandwidth control and measurement paths, while the 2.7 V to 5.5 V supply range accommodates common 3.3 V and 5 V industrial electronics. The 230 uA typical operating current helps limit self-heating in distributed measurement nodes, although the exact operating-temperature grade and input common-mode limits must be checked before deployment.
Recomendado
Battery-Powered Data Acquisition
The MCP601-I/SN fits battery-powered data-acquisition systems that require continuous analog amplification without the power consumption of a higher-bandwidth amplifier. At 230 uA typical operating current, the device provides meaningful headroom for sensors, an ADC, and digital control while operating from a 2.7 V to 5.5 V supply. Its low input bias current reduces errors when the source impedance is high, and its 2.8 MHz gain-bandwidth product permits filtering and gain stages above typical low-frequency measurement bandwidths.
Recomendado
Low-End Audio Preamplifier
The MCP601-I/SN can serve in low-end audio preamplifier and line-buffer circuits where rail-to-rail output improves available signal swing. Its 2.8 MHz gain-bandwidth product is well above the 20 kHz audio band, allowing moderate closed-loop gains with additional bandwidth margin. The 230 uA typical operating current is useful in portable audio equipment, but engineers should verify output swing, distortion, noise, stability, and drive capability for the selected gain and load in the manufacturer datasheet.
Recomendado
Active Filters and Signal Conditioning
The MCP601-I/SN is suitable for active low-pass, high-pass, and band-pass stages operating below its 2.8 MHz gain-bandwidth limit. The amplifier's low operating current supports compact analog sections, while its low bias current reduces disturbance to high-impedance filter networks. Keep the closed-loop gain low enough to preserve response and stability margin, and check the manufacturer characteristics for the required noise, output-swing, and capacitive-load conditions before finalizing component values.
Recomendado
Test and Measurement Buffering
The MCP601-I/SN can buffer instrument sources, sensor outputs, and ADC inputs in compact test and measurement equipment. Its low bias current reduces source-loading errors, and its 2.8 MHz gain-bandwidth product handles many general-purpose measurement signals while its 230 uA typical operating current limits the amplifier's contribution to system power. The device is best used where moderate bandwidth and low noise are sufficient; precision or wideband instrumentation may require a lower-noise or higher-bandwidth amplifier.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MCP601-I/SN — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MCP601-E/SN |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 8-pin SOIC | 8-pin SOIC |
| Amplifier Type | Single general-purpose operational amplifier | Single general-purpose operational amplifier |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Gain-Bandwidth Product | 2.8 MHz | 2.8 MHz |
| Typical Operating Current | 230 uA | 230 uA |
| Typical Offset Voltage | Less than 2 mV | Less than 2 mV |
| Output Swing | Rail-to-rail | Rail-to-rail |
| Process Technology | Advanced CMOS | Advanced CMOS |
Principais diferenciais
- Combines moderate bandwidth with low operating current (vs MCP601-E/SN)
- Single-amplifier SOIC-8 implementation (vs MCP602-I/SN)
- Single-supply operation for portable systems (vs MCP601-E/SN)
Notas de projeto
Place the MCP601-I/SN close to its supply bypass capacitor and connect the bypass return directly to the device ground pin. Keep the input traces short and away from switching nodes because the low-bias-current architecture can benefit from high-impedance nodes, while long PCB traces may add pickup and capacitance. For stable operation, follow the manufacturer output-load and stability guidance for the selected gain, output capacitance, and supply decoupling.
Use the 2.8 MHz gain-bandwidth product as the upper limit for practical closed-loop bandwidth rather than expecting full gain-bandwidth performance at high closed-loop gain. Additional phase margin may be needed when driving capacitive loads. Confirm gain, settling, slew rate, and output-capacitance limits in the Microchip manufacturer datasheet before using the amplifier in precision step-response or long-cable interfaces.
The 230 uA typical operating current makes MCP601-I/SN suitable for low-power systems, but the complete power budget must include input bias current, output-current demand, and the quiescent current of surrounding circuitry. A 3.3 V rail at 230 uA corresponds to an estimated amplifier supply consumption of 0.759 mW using the stated typical current and voltage. Verify the actual operating mode and load before assigning it to a battery-life target.
Do not assume that rail-to-rail output swing means the input accepts every common-mode voltage near either supply rail. Check the input common-mode range, output swing under the intended load, input offset behavior, noise, and stability requirements in the manufacturer datasheet. Also avoid changing the amplifier count when selecting family relatives: MCP602 and MCP604 provide multiple amplifiers in different packages and are not footprint-compatible substitutes.
Informações de conformidade
The manufacturer product page identifies the MCP601 family as intended for industrial, portable, data-acquisition, test, and low-end audio equipment. Specific RoHS, REACH, lead-free, halogen-free, conflict-minerals, and AEC-Q100 statements require confirmation from the manufacturer product documentation or declaration.
