MCP6041-E/P - 600nA Rail-to-Rail Op Amp | Microchip
N.º da peça: MCP6041-E/P ✓ AtivoMCP6041-E/P Visão geral
An operational amplifier is a voltage-controlled differential amplifier used in the broader hierarchy of analog amplifiers, signal-conditioning ICs, and semiconductor devices. The MCP6041 combines low supply current, wide rail-to-rail input and output operation, and low offset voltage in one amplifier. This makes it useful when the measured signal can approach either supply rail and when battery life is more important than high bandwidth.
According to the Microchip MCP6041 datasheet, the MCP6041 provides a gain-bandwidth product of 14 kHz, a typical quiescent current of 600 nA per amplifier, and offset voltage below 3 mV. The manufacturer describes rail-to-rail input and output capability, wide supply-voltage operation to 6.0 V, and unity-gain stability. The low-current design is particularly valuable for portable equipment, wearable products, battery-operated instruments, and industrial process-control circuits.
The MCP6041-E/P is a standard-grade DIP-8 ordering option. The -E suffix identifies the extended-temperature grade, while -P identifies the PDIP package. The family is available in PDIP, SOIC, and MSOP packages, but the MCP6041-E/P specifically uses the 8-pin PDIP footprint. Its 14 kHz gain-bandwidth product makes it most appropriate for slow sensor signals, current monitoring, and general low-frequency conditioning rather than high-speed waveform or communications paths.
Typical implementations place the amplifier in non-inverting or inverting amplifier stages around resistive sensors, or as a voltage follower for buffering a high-impedance source. For battery-powered systems, the sub-microamp quiescent current helps limit standing power consumption, while the 1.4 V minimum supply permits operation from a single low-voltage cell. The unity-gain-stable configuration also simplifies buffering and gain stages where stability is more important than closed-loop bandwidth.
Designers should verify the input common-mode range, output swing, offset, and bias-current behavior against the actual signal levels before finalizing the circuit. Input and output stability, adequate bypassing, and correct handling of rail-to-rail input stages are important. The low 14 kHz bandwidth also means the amplifier is not a suitable choice for high-speed data acquisition, video, RF, or wideband signal paths.
Alternativas drop-in para MCP6041-E/P — 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 MCP6041-E/P (mesmo formato e footprint) — diferindo em Input Bias Current, Maximum Quiescent Current, Package, RoHS Status, Slew Rate.
MCP6041-I/P
✅ Drop-InConsulte o preço
Ver ficha técnica →MCP6041-E/P Classificações máximas e características elétricas
| Amplifier Type | Single operational amplifier |
| Supply Voltage Range | 1.4 V to 6.0 V |
| Minimum Single Supply | 1.4 V |
| Corrente de repouso | 600 nA typical per amplifier |
| Maximum Quiescent Current | Less than 1.0 uA per amplifier |
| Gain-Bandwidth Product | 14 kHz typical |
| Offset Voltage | Less than 3 mV |
| Input Type | Rail-to-rail input |
| Tipo de saída | Rail-to-rail output |
| Gain Stability | Unity gain stable |
| Slew Rate | 0.003 V/uS |
| CMRR | 80 dB |
| Input Bias Current | 0.0050 uA |
| Temperatura de operação | -40 C to +125 C |
| Encapsulamento | 8-pin PDIP, 0.300 inch, 7.62 mm |
| Tipo de montagem | Through-hole |
| Status RoHS | Compliant |
| Lead-Free Status | Lead-free |
Configuração de pinos do MCP6041-E/P
| Pino 1 | NC — Not connected |
| Pino 2 | -IN — Inverting input |
| Pino 3 | +IN — Non-inverting input |
| Pino 4 | V- — Negative supply or ground connection |
| Pino 5 | NC — Not connected |
| Pino 6 | OUT — Analog output |
| Pino 7 | V+ — Positive supply connection |
| Pino 8 | NC — Not connected |
Aplicações típicas
MCP6041-E/P é adequado para 7 aplicaçãos: Battery-Powered Sensor Conditioning, Battery Current Monitoring, Wearable and Portable Equipment, Industrial Process Control, Low-Voltage Instrumentation, Energy-Harvesting Circuits, Low-Power Signal Buffering.
Battery-Powered Sensor Conditioning
The MCP6041-E/P fits low-energy sensor interfaces because its single supply can extend down to 1.4 V and its typical quiescent current is 600 nA. According to the Microchip MCP6041 datasheet, rail-to-rail input and output operation supports signals that approach the supply limits, making the amplifier useful for resistive sensors, potentiometers, and low-voltage environmental detectors. It can be configured as a non-inverting or inverting amplifier with a resistive feedback network. The principal trade-off is its 14 kHz gain-bandwidth product, which is ample for slow temperature or pressure measurements but unsuitable for fast transients.
Recomendado
Battery Current Monitoring
The MCP6041-E/P is appropriate for amplifying the small voltage produced by a current-sense shunt in battery-powered equipment. Its 600 nA typical quiescent current minimizes the amplifier's contribution to system standby power, while the 14 kHz gain-bandwidth product is suitable for monitoring relatively slow current changes. According to the Microchip datasheet, the amplifier supports single-supply operation from 1.4 V and provides rail-to-rail input and output behavior. Engineers should still verify shunt resistance, common-mode voltage, offset error, and filter requirements at the lowest battery voltage.
Recomendado
Wearable and Portable Equipment
The MCP6041-E/P suits wearable and portable products where continuous amplifier current can shorten operating time between charges. According to the Microchip product page, the device targets portable equipment and wearable products, combining a 600 nA typical operating current with a 1.4 V minimum single supply. Rail-to-rail input and output can improve utilization of a small battery-powered signal range, while unity-gain stability permits simple voltage-following or moderate-gain stages. Layout should minimize leakage and contamination paths because board-level contamination can dominate a design whose supply current is measured in hundreds of nanoamperes.
Recomendado
Industrial Process Control
The MCP6041-E/P can condition low-frequency process signals when the system emphasizes low power and rail-to-rail operation rather than wide bandwidth. Its -E grade is specified for -40 C to +125 C operation, and the 8-pin PDIP package supports through-hole assembly and serviceable industrial hardware. According to the Microchip MCP6041 datasheet, the device operates from 1.4 V to 6.0 V, has a 14 kHz typical gain-bandwidth product, and is unity-gain stable. It is appropriate for slow sensor loops, but protection, grounding, noise filtering, and supply partitioning should be addressed for factory environments.
Recomendado
Low-Voltage Instrumentation
The MCP6041-E/P can buffer or amplify low-level signals in compact instrumentation powered by a low-voltage source. According to the Microchip datasheet, its typical offset voltage is below 3 mV, its common-mode rejection is 80 dB, and its input bias current is 0.0050 uA, all of which are relevant to high-impedance source conditioning. The 14 kHz bandwidth is suitable for slow measurement channels rather than precision wideband acquisition. Designers should calculate source-impedance error, resistor-generated noise, and output-swing margin at the actual supply voltage and temperature.
Recomendado
Energy-Harvesting Circuits
The MCP6041-E/P is well suited to energy-harvesting front ends because it can operate from 1.4 V and draws 600 nA typically. According to the Microchip MCP6041 datasheet, this low-current CMOS operational amplifier supports rail-to-rail input and output operation for compact harvested-power systems. It can buffer an envelope detector or scale a sensor signal before digitization. The main engineering constraint is the 14 kHz gain-bandwidth product, so a low-bandwidth filter is generally preferable to demanding wideband response from the amplifier itself.
Recomendado
Low-Power Signal Buffering
The MCP6041-E/P works as a voltage follower when a high-impedance source requires isolation from a downstream ADC or switch network. According to the Microchip family datasheet, unity-gain stability and rail-to-rail output operation simplify this configuration, while the 600 nA typical quiescent current limits static load. The rail-to-rail input characteristic is useful when the source occupies much of the available 1.4 V to 6.0 V supply range. Designers should confirm capacitive loading at the output and include a small isolation resistor if required to maintain stability in the completed circuit.
Recomendado
Dados de referência de engenharia para MCP6041-E/P — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MCP6041-I/P |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 8-pin PDIP | 8-pin PDIP - same |
| Amplifier Count | 1 | 1 |
| Supply Voltage Range | 1.4 V to 6.0 V | 1.4 V to 6.0 V |
| Quiescent Current | 600 nA typical | 600 nA typical |
| Gain-Bandwidth Product | 14 kHz typical | 14 kHz typical |
| Offset Voltage | Less than 3 mV | Less than 3 mV |
| Input and Output | Rail-to-rail input and output | Rail-to-rail input and output |
Principais diferenciais
- Low-power single-amplifier implementation (vs MCP6041-I/P)
- Rail-to-rail signal handling from a 1.4 V supply (vs MCP6041-I/P)
- Unity-gain-stable low-frequency conditioning (vs MCP6041-I/P)
Notas de projeto
Do not treat rail-to-rail input and output wording as unlimited range. Verify the input common-mode behavior and output swing in the Microchip MCP6041 datasheet at the lowest supply voltage, highest temperature, and expected load. The device can operate from 1.4 V, but practical headroom remains necessary for the output to stay in its linear region. This is especially important in battery systems because the operating voltage may fall below the nominal rail during discharge.
Place the supply bypass capacitor close to V+ and connect the ground reference directly to V-. Because the typical quiescent current is only 600 nA, leakage from contaminated PCB surfaces, moisture, connector cleanliness, and high-value feedback resistors can materially change the current budget. Use conductive-anodic-aluminum resistors where very high impedance values are unavoidable, and route the sensitive input away from switching nodes and high-impedance leakage paths.
The 14 kHz typical gain-bandwidth product limits the useful closed-loop bandwidth as gain increases. For a noninverting gain of 100, the approximate closed-loop bandwidth is 140 Hz; for a gain of 1000, it is approximately 14 Hz. These are bandwidth estimates based on the verified 14 kHz gain-bandwidth product, not guaranteed datasheet limits. Use the required signal bandwidth, settling time, offset, and noise together when choosing the feedback network.
Use a low-voltage supply only when the full circuit can tolerate the resulting output headroom and common-mode limits. According to the manufacturer datasheet, MCP6041 operation extends down to 1.4 V and quiescent current is less than 1.0 uA maximum. Add the output-load current, feedback-divider current, input-bias effect, and board leakage to determine the real standby consumption. A single-cell or energy-harvesting design should be evaluated at minimum battery voltage rather than only its nominal voltage.
Informações de conformidade
The supplied FindIC result identifies MCP6041-E/P as RoHS compliant and lead-free. REACH, halogen-free, conflict-minerals, and automotive-qualification status were not provided in the verified data.
