MCP6272-E/P - Dual 2MHz RRO Op Amp | Microchip
MPN: MCP6272-E/P ✓ ActiveMCP6272-E/P Overview
An operational amplifier, commonly abbreviated op amp, is an analog integrated circuit that amplifies the difference between two input voltages. A dual op amp contains two amplifier channels in one package, allowing simultaneous amplification or the construction of differential, filtering, comparator, and feedback circuits. The MCP6272 family combines a 2 MHz gain-bandwidth product with 65° phase margin and rail-to-rail input and output characteristics, making it suitable for general-purpose low-power signal conditioning.
Key features include two amplifier channels, 2 MHz typical gain bandwidth, 170 µA typical supply current, and operation from a single supply to 5.5 V. The input offset voltage is 3 mV, while the common-mode rejection ratio is at least 70 dB. Rail-to-rail input and output behavior allows the amplifier to process signals near the low and high ends of its supply range. The extended-temperature capability reaches +125 °C, supporting applications with a wider environmental range than standard commercial-grade devices.
The 2 MHz gain-bandwidth product defines the approximate frequency range available for useful closed-loop gain. For example, a 10-times voltage gain would place the amplifier near 200 kHz based on the 2 MHz gain-bandwidth product. The 65° phase margin provides stability-oriented design guidance for common feedback configurations. These figures make the MCP6272 practical for low-to-moderate-frequency instrumentation, sensor interfaces, audio preamplification, filtering, and general embedded analog signal paths rather than demanding high-speed video or RF amplification.
Typical uses include battery-powered sensor conditioning, buffered ADC inputs, low-frequency active filters, audio input stages, and general dual-channel analog interfaces. The low 170 µA typical supply current is particularly useful in compact embedded systems where each additional milliamp can affect battery life. Two channels also reduce component count when a board needs paired amplification, differential buffering, or independent signal paths.
Design should account for the 5.5 V maximum supply, input common-mode range, output swing, load capacitance, and stability requirements. Place the bypass capacitor close to the supply pins and route feedback components to minimize parasitic effects. Confirm the intended operating temperature and package constraints against the manufacturer datasheet before releasing a production PCB.
This product page combines manufacturer specifications, package information, sourcing guidance, application fit, and engineering-focused design notes. It also distinguishes true same-package drop-in replacements from nearby family variants in other packages, helping designers avoid substitutions that require PCB or footprint changes.
Drop-in alternatives for MCP6272-E/P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
No drop-in alternatives available for this product.
Request AlternativesMCP6272-E/P Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 channels |
| Product Type | Operational amplifier |
| Gain-Bandwidth Product | 2 MHz typical |
| Supply Current | 170 µA typical |
| Maximum Supply Voltage | 5.5 V |
| Input and Output Operation | Rail-to-rail |
| Input Offset Voltage | 3 mV |
| Common-Mode Rejection Ratio | 70 dB minimum |
| Phase Margin | 65° |
| Extended Temperature Range | to +125 °C |
| Package | 8-DIP (0.300 inch, 7.62 mm) |
| Number of Pins | 8 pins |
| Mounting Type | Through-hole |
MCP6272-E/P 8-dip (0.300 inch, 7.62 mm) Pin Configuration Guide
Pin configuration for MCP6272-E/P (8-dip (0.300 inch, 7.62 mm) package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for MCP6272-E/P.
Refer to the datasheet for full pin configuration.
Typical Applications
MCP6272-E/P is suitable for 6 applications: Battery-Powered Sensor Conditioning, ADC Input Buffering, Low-Frequency Active Filtering, Audio Preamplification, Industrial Control Signal Interfaces, Portable Instrument Front Ends.
Battery-Powered Sensor Conditioning
The MCP6272-E/P is well suited to battery-powered sensor interfaces because it combines two amplifier channels with a 170 µA typical supply current. A channel can amplify a sensor output while the second channel buffers a reference or produces a complementary signal. Its 2 MHz typical gain-bandwidth product provides useful bandwidth for many temperature, pressure, and inertial sensors operating at low or moderate signal frequencies. Rail-to-rail input and output behavior is useful when the sensor signal occupies much of a low-voltage supply range. The design should still confirm input bias current, offset voltage, noise, common-mode range, and output drive against the particular sensor and power budget.
ADC Input Buffering
The MCP6272-E/P can provide buffering between a sensing element and an ADC, particularly in systems where source impedance or ADC sampling behavior requires an active input stage. Its 2 MHz typical gain-bandwidth product supports low-to-moderate-frequency signal paths, while the 3 mV typical input offset voltage and 70 dB minimum common-mode rejection ratio are relevant to precision conditioning. The dual package allows one channel to amplify the sensor signal and another to handle a reference or auxiliary input. Before implementation, verify the ADC sampling rate, required settling time, input capacitance, allowable offset, and the amplifier output capability into the converter.
Low-Frequency Active Filtering
The MCP6272-E/P is appropriate for active filters and frequency-shaping networks requiring more bandwidth than a very-low-frequency precision amplifier while retaining low supply current. Its 2 MHz typical gain-bandwidth product and 65° phase margin provide a practical basis for Sallen-Key or other moderate-Q topologies. The 170 µA typical supply current helps limit power use in portable equipment. Filter values must account for the closed-loop gain, noise gain, op-amp bandwidth, input and output limits, and component tolerances. Verify stability and settling behavior with the manufacturer’s recommended circuit and the final source and load impedances.
Audio Preamplification
The MCP6272-E/P can serve as a low-level audio preamplifier when the application requires dual-channel amplification, modest bandwidth, and low supply current. The 2 MHz gain-bandwidth product is ample for many microphone, line-input, and headphone-driver interface stages operating below 20 kHz. Rail-to-rail input and output operation can simplify biasing around a single low-voltage supply. Audio performance still depends on the selected gain, input-referred noise, distortion, input bias current, and output load. A microphone preamplifier should account for source impedance and the resulting bias-error contribution, while a line stage should verify acceptable distortion and output swing.
Industrial Control Signal Interfaces
The MCP6272-E/P can condition low-frequency control and measurement signals in industrial equipment, provided its operating range and environmental limits match the design. The two channels can handle separate sensor outputs or form a differential stage, while the 170 µA typical supply current supports compact low-power circuitry. Its 5.5 V maximum supply and extended-temperature capability to +125 °C are important constraints when selecting it for industrial equipment. Confirm minimum operating temperature, input common-mode behavior, transient protection, noise immunity, and output load requirements. External protection may still be necessary at connector boundaries where surge or ESD exposure exceeds the device’s rated conditions.
Portable Instrument Front Ends
The MCP6272-E/P is useful in portable measurement instruments where two low-power analog channels are needed on a small board. Its 170 µA typical supply current reduces the contribution of the analog front end to total battery consumption, and the 2 MHz typical gain-bandwidth product handles many slow sensor, transducer, and control signals. The 8-DIP package also simplifies through-hole prototyping and educational instrumentation. For metrology applications, evaluate offset and bias drift, noise, CMRR, input impedance, and the required settling behavior. The manufacturer datasheet should be used to confirm the exact temperature range and electrical limits for production use.
Engineering reference data for MCP6272-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 8-DIP (0.300 inch, 7.62 mm) |
| Brand | Microchip Technology |
| Number of Channels | 2 channels |
| Gain-Bandwidth Product | 2 MHz typical |
| Supply Current | 170 µA typical |
| Maximum Supply Voltage | 5.5 V |
| Input Offset Voltage | 3 mV |
| Common-Mode Rejection Ratio | 70 dB minimum |
| Input and Output Operation | Rail-to-rail |
| Phase Margin | 65° |
Key Differentiators
- Dual-channel integration reduces the number of amplifier packages needed for paired analog functions. (vs OPA2343UA)
- The MCP6272-E/P combines low supply current with moderate gain bandwidth. (vs MCP6272-E/SN)
- Rail-to-rail input and output operation supports signal conditioning on a single low-voltage supply. (vs MCP6272T-E/SN)
Design Notes
Use a local bypass capacitor from the supply pin to ground and keep the connection short. The device's 170 µA typical supply current makes low quiescent-current operation possible, but bypass layout still matters when an upstream converter or sensor line can inject disturbance into the analog rail. Confirm the recommended capacitor value and voltage rating in the manufacturer datasheet, and account for capacitor DC-bias derating if ceramic capacitors are used.
Preserve a quiet return path and place the power-bypass capacitor adjacent to the MCP6272-E/P supply pin. Route output and feedback traces away from high-current switching nodes and connector edges. The 8-DIP footprint permits a relatively large pin pitch, which can make routing convenient, but adequate copper clearance and grounding remain important for analog signal integrity. Review the package drawing and recommended layout before finalizing the PCB.
Do not treat the nearby MCP6272-E/SN or MCP6272T-E/SN as direct replacements for the DIP package. Those are 8-SOIC variants and require a different PCB footprint. Likewise, confirm that the operating signal remains within the rail-to-rail input and output operating region and that the supply never exceeds the 5.5 V limit. Validate offset, bias current, noise, and load drive against the specific application before production release.
Choose feedback resistors and capacitors to keep the closed-loop bandwidth comfortably below the 2 MHz typical gain-bandwidth product. The family phase margin is 65°, which supports conventional feedback configurations, but high closed-loop gain, capacitive loading, or very low feedback resistance can change stability. Check the manufacturer’s recommended operating range and simulate the final source impedance, load, and filter network when the signal path is sensitive to settling or ringing.
Compliance Information
The accessed product information identifies RoHS details but does not provide an unambiguous compliance statement. AEC-Q100 is not applicable because the verified product information does not identify MCP6272-E/P as an automotive-qualified variant. Current manufacturer declarations should be obtained for regulated production requirements.
