MCP6274-E/P - 2 MHz Rail-to-Rail Quad Op Amp | Microchip Technology
Артикул: MCP6274-E/P ✓ АктивенMCP6274-E/P Обзор
An operational amplifier is an integrated analog amplifier that uses differential input voltage to control an output voltage or current. The MCP6274 belongs to the operational-amplifier hierarchy within analog and mixed-signal semiconductors, commonly used to amplify weak sensor signals, buffer high-impedance sources, perform analog filtering, and establish stable voltage references. The MCP6274-E/P is the quad version of the MCP6271/1R/2/3/4/5 family, allowing four amplifiers in one package and reducing board area in multi-channel systems.
The MCP6274-E/P provides a typical gain-bandwidth product of 2 MHz, typical supply current of 170 uA, and a typical slew rate of 0.9 V/us. Its rail-to-rail input and output capability is useful when signal levels approach the positive or negative supply limits. The extended-temperature option is intended for operating temperatures up to +125 C, as identified in the family documentation, making the device suitable for industrial and instrumentation environments when its full electrical limits are respected.
The device is specified as a general-purpose amplifier with four circuits in a 14-DIP package measuring 0.300 inch, or 7.62 mm, pitch. The DIP format is useful for prototyping, through-hole industrial equipment, and designs that favor a large package with generous pin spacing. The 14-pin arrangement contains four amplifier channels and their associated supply and ground connections, allowing convenient point-to-point wiring or socketed implementation.
Typical uses include low-frequency sensor conditioning, current-to-voltage conversion, audio preamplification, instrumentation buffering, active filtering, and general signal amplification. Because the amplifier is intended for single-supply operation, system designers should establish the input common-mode range, output swing, load current, stability, and noise margins around the actual supply voltage. The manufacturer family documentation identifies a 2 MHz GBWP and 65 degree phase margin as characteristic of the family.
For PCB implementation, place the device so that each power and ground pin connects to low-impedance supply planes, keep input and feedback traces short, and provide bypassing capacitance close to the supply pins. Avoid placing high-current return paths beneath the input circuitry. When substituting parts, confirm the exact 14-DIP pinout, operating voltage, input common-mode range, output swing, slew rate, and stability requirements rather than relying only on the advertised bandwidth.
This page combines the MCP6274-E/P manufacturer specifications, package information, pricing evidence, application guidance, and drop-in replacement considerations into a practical engineering reference for selecting and implementing the device.
Аналоги без доработки для MCP6274-E/P — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
MCP6274-E/CH
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MCP6274-E/P Максимальные параметры и электрические характеристики
| Amplifier Type | General Purpose |
| Number of Circuits | 4 circuits |
| Gain Bandwidth Product | 2 MHz typical |
| Ток потребления | 170 uA typical |
| Slew Rate | 0.9 V/us typical |
| Напряжение питания | To 5.5 V |
| Input Type | Rail-to-Rail |
| Тип выхода | Rail-to-Rail |
| Рабочая температура | To +125 C |
| Корпус | 14-DIP, 0.300 inch / 7.62 mm pitch |
| Channel Count | 4 |
| Phase Margin | 65 degrees |
| Тип монтажа | Through-hole |
Конфигурация выводов MCP6274-E/P
| Контакт 1 | OUTA — Output of amplifier A |
| Контакт 2 | IN-A- — Inverting input of amplifier A |
| Контакт 3 | IN-A+ — Non-inverting input of amplifier A |
| Контакт 4 | V+ — Positive supply |
| Контакт 5 | IN-B+ — Non-inverting input of amplifier B |
| Контакт 6 | IN-B- — Inverting input of amplifier B |
| Контакт 7 | OUTB — Output of amplifier B |
| Контакт 8 | OUTC — Output of amplifier C |
| Контакт 9 | IN-C- — Inverting input of amplifier C |
| Контакт 10 | IN-C+ — Non-inverting input of amplifier C |
| Контакт 11 | V- — Negative supply |
| Контакт 12 | IN-D+ — Non-inverting input of amplifier D |
| Контакт 13 | IN-D- — Inverting input of amplifier D |
| Контакт 14 | OUTD — Output of amplifier D |
Типичное применение
MCP6274-E/P подходит для 6 применениеs: Low-Power Sensor Signal Conditioning, Current-Sense Amplification, Portable Audio Preamplification, Active Filtering and Analog Control, Industrial Instrumentation Buffering, Embedded ADC Interface.
Low-Power Sensor Signal Conditioning
The MCP6274-E/P is well suited to conditioning sensor outputs when the design needs several analog channels without a large power budget. Its four integrated operational amplifiers can buffer resistive sensors, amplify bridge-related signals, and provide gain stages for an ADC input. The 2 MHz gain-bandwidth product is ample for many temperature, pressure, and position sensors operating at low-to-moderate bandwidth, while the 170 uA typical supply current helps preserve battery life. Rail-to-rail input and output stages are useful when sensor signals occupy much of the available single-supply range. Keep sensor return paths away from switching currents and use local supply bypassing to prevent the amplifier from amplifying ground noise.
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Current-Sense Amplification
Use the MCP6274-E/P for low-bandwidth current measurement when a shunt resistor produces a small differential voltage that must be amplified before digitization. The quad package provides four amplifier channels for measurement, filtering, and signal-chain support. Its 2 MHz GBWP and 0.9 V/us slew rate provide useful response for many motor, power-supply, and battery-current monitors, while the 170 uA typical supply current is valuable in portable equipment. Rail-to-rail input capability helps when the shunt voltage approaches the supply range. Check common-mode limits, resistor tolerances, amplifier offset, and the ADC input range, and route the Kelvin sense connections away from high-current copper.
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Portable Audio Preamplification
The MCP6274-E/P can provide low-power preamplification for microphone, headphone-buffer, and line-level audio stages where four channels are useful. The 2 MHz gain-bandwidth product supports audio-band signals with ample margin, and the 0.9 V/us slew rate helps preserve waveform transitions. Rail-to-rail input and output stages make the device practical in single-supply systems where signals must remain close to the available output range. The low 170 uA typical supply current is advantageous in battery-powered audio products. Designers should still verify input noise, output swing into the actual load, channel-to-channel matching, and stability when driving capacitive headphone or microphone loads.
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Active Filtering and Analog Control
The MCP6274-E/P is appropriate for active filters and analog control loops that require multiple amplifiers in a compact through-hole package. Each channel can implement a low-pass, high-pass, or other feedback network around the 2 MHz GBWP, enabling signal shaping without an active-filter controller. The 65 degree phase margin described for the family provides a useful margin for conventional feedback layouts, but stability must be checked with the actual capacitor and load values. The 170 uA typical supply current supports low-power control and monitoring systems, and the 14-DIP package simplifies prototyping. Keep filter components close to the relevant pins and avoid long feedback traces.
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Industrial Instrumentation Buffering
The MCP6274-E/P can buffer high-impedance instrumentation signals and provide four channels of gain in industrial measurement equipment. Its typical 170 uA supply current, 2 MHz GBWP, and extended-temperature operation to +125 C support designs where low power and environmental range are both important. Rail-to-rail inputs help preserve signal integrity when the measured node is close to either supply rail, and the 14-DIP package is convenient for through-hole industrial assemblies. The design must still account for input bias current, offset voltage, output drive, noise, and common-mode limits for the selected operating range. Use guarding and short traces for high-impedance sources to minimize leakage and parasitic effects.
Рекомендуется
Embedded ADC Interface
The MCP6274-E/P can serve as an analog interface between sensors and an embedded ADC, particularly when four channels are required and the signal bandwidth is modest. The amplifier's 170 uA typical supply current helps avoid becoming a major load in a battery-operated embedded system, while its 2 MHz GBWP is more than sufficient for many slow sensor conversions. Rail-to-rail input and output stages provide flexibility when the sensor and ADC share a constrained single-supply range. Design the gain so that the output remains within the ADC input limits, account for settling time at the selected gain, and place the amplifier close to the ADC input to reduce noise pickup.
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Справочные инженерные данные для MCP6274-E/P — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MCP6274-E/CH |
|---|---|---|
| Number of Circuits | 4 | 4 |
| Package | 14-DIP, 0.300 inch / 7.62 mm pitch | 14-DIP |
| Brand | Microchip Technology | Microchip Technology |
Ключевые отличия
- Four amplifiers in one 14-DIP package (против MCP6274-E/CH)
- Low typical supply current (против MCP6274-E/CH)
- Rail-to-rail input and output operation (против MCP6274-E/CH)
- 2 MHz gain-bandwidth product (против MCP6274-E/CH)
Заметки по проектированию
Place the 14-DIP device so that the supply and ground pins connect to low-impedance planes, and place bypass capacitance close to the package pins. Keep the four amplifier channels physically separated when high-impedance inputs are used so that output routing on one channel does not couple into another. Confirm pin 1 orientation against the package drawing before soldering.
Do not assume that a matching amplifier type is a drop-in replacement. For the MCP6274-E/P, verify the 14-DIP pin numbering, supply-voltage range, input common-mode limits, output swing, offset, noise, and stability with the intended load. The family also includes single, dual, and quad devices, so a functionally similar part can have a different pinout or channel count.
Keep input and feedback traces short and route them away from switching-node copper and digital return currents. For high-impedance sources, use guarding and clean board surfaces to reduce leakage. When driving capacitive loads, confirm stability with the actual load capacitance and consider an isolation resistor after evaluating the manufacturer's guidance.
The 170 uA typical supply-current figure is useful for initial power budgeting, but design with worst-case conditions rather than the typical value. Include the current consumed by the load, input bias paths, external feedback network, and any unused-channel biasing. A bypass capacitor selected only from the typical-current figure may be inadequate during transient or startup events.
Информация о соответствии
The cited product information does not provide the compliance declarations for MCP6274-E/P. Verify the current manufacturer material-compliance documentation for the exact ordering code. The manufacturer identifies the extended-temperature option as operating to +125 C, but that temperature rating is not an AEC-Q100 qualification claim.
