MCP6273-E/P - 2 MHz Rail-to-Rail Op Amp | Microchip
MPN: MCP6273-E/P ✓ ActiveMCP6273-E/P Overview
An operational amplifier, or op amp, is an analog integrated circuit that amplifies the difference between two input voltages while providing high input impedance and low output impedance. The MCP6273 belongs to the operational-amplifier hierarchy within analog ICs and power-management signal conditioning. Rail-to-rail input capability allows the input common-mode voltage to extend close to both supply rails, while rail-to-rail output operation supports low-amplitude signals in low-voltage systems.
The family’s 2 MHz gain-bandwidth product provides useful bandwidth for low-frequency precision and general-purpose analog signal paths. A 65-degree phase margin supports stable operation in common feedback configurations. The typical 170 uA quiescent current reduces the standing power requirement of battery-operated equipment, and the 2.0 V minimum single-supply operation makes the amplifier compatible with modern low-voltage rails. The MCP6273-E/P is specified in an 8-pin PDIP package for through-hole PCB assembly.
This amplifier is intended for signal paths that need more bandwidth than a micropower comparator but do not require the drive or speed of a high-performance precision amplifier. Its rail-to-rail behavior is particularly valuable when the usable input range must cover much of the supply voltage. Designers should still evaluate output-current capability, noise, input bias current, common-mode limits, and stability under the intended loading before fixing a gain or output stage.
Typical uses include low-frequency sensor conditioning, portable measurement systems, audio input stages, current-sense buffers, and general-purpose analog gain blocks. The MCP6273-E/P can also form the active element in filters and instrumentation amplifiers when component tolerances and operating bandwidth support the required accuracy. The 2.0 V operating supply and 170 uA typical quiescent current are particularly attractive for compact battery-powered products.
The principal design consideration is stable feedback compensation. Keep the feedback network close to the amplifier, avoid excessive capacitive loading at the output, and confirm the selected gain against the 2 MHz gain-bandwidth product and 65-degree phase margin. The manufacturer datasheet should be used to assign the eight package pins, select input and output capacitors, and verify operating limits.
This product page combines package information, searchable technical attributes, verified commercial availability, replacement guidance, and practical analog-design notes in one searchable reference. It helps engineers distinguish the MCP6273-E/P from related package and amplifier options before committing a PCB footprint or low-voltage power budget.
Drop-in alternatives for MCP6273-E/P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
MCP6283-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
MCP6273-E/P Maximum Ratings & Electrical Characteristics
| Amplifier Type | Single operational amplifier |
| Gain-Bandwidth Product | 2 MHz |
| Phase Margin | 65 degrees |
| Quiescent Current | 170 uA typical |
| Minimum Single-Supply Voltage | 2.0 V |
| Input Type | Rail-to-rail |
| Output Type | Rail-to-rail |
| Number of Circuits | 1 |
| Package | 8-pin PDIP |
| Mounting Type | Through-hole |
MCP6273-E/P 8-pin pdip Pin Configuration Guide
Pin configuration for MCP6273-E/P (8-pin pdip 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 MCP6273-E/P.
Refer to the datasheet for full pin configuration.
Typical Applications
MCP6273-E/P is suitable for 6 applications: Portable Sensor Signal Conditioning, Battery-Powered Measurement Module, Low-Frequency Active Filter, Audio Input Preamplifier, Current-Shunt Buffer, Industrial Low-Voltage Control Signal.
Portable Sensor Signal Conditioning
The MCP6273-E/P fits portable sensor interfaces that operate from a supply as low as 2.0 V and need amplification of slow analog signals. Its 170 uA typical quiescent current limits standing power demand, while the 2 MHz gain-bandwidth product provides useful bandwidth for moderate-gain stages. Place it in a non-inverting or differential signal-conditioning path where rail-to-rail input capability improves usable dynamic range. Check the sensor output impedance and the amplifier’s input bias current because high source resistance can create input-voltage errors. Output loading and sensor drive requirements must also remain within the electrical limits listed in the manufacturer datasheet.
Recommended
Battery-Powered Measurement Module
The MCP6273-E/P is well suited to battery-powered measurement modules because it operates from a single supply as low as 2.0 V and has 170 uA typical quiescent current. Rail-to-rail input and output behavior helps preserve signal amplitude when the available supply headroom is limited. Use the amplifier to condition sensor or bridge signals before conversion by an ADC. The 2 MHz gain-bandwidth product supports moderate-bandwidth measurement channels, but total battery life also depends on the ADC, sensor, pull networks, and switching activity elsewhere in the module.
Recommended
Low-Frequency Active Filter
The MCP6273-E/P can implement low-frequency active filters and gain stages because its 2 MHz gain-bandwidth product provides bandwidth above many sensor-band signals and its 65-degree phase margin supports conventional feedback configurations. Rail-to-rail input and output capability is useful when the filter operates close to the supply rails. Select resistor and capacitor values around the desired cutoff or center frequency while accounting for finite gain-bandwidth and load effects. Verify stability, output swing, and noise with the manufacturer’s recommended application methods before production.
Recommended
Audio Input Preamplifier
The MCP6273-E/P can serve as a low-level audio input amplifier in compact, single-supply equipment. Its rail-to-rail input and output swing support small-signal stages operating near the supply limits, while the 2 MHz gain-bandwidth product is adequate for many general-purpose audio preamplifier paths. The 170 uA typical quiescent current also suits portable equipment. Designers should verify input noise, input bias current, output drive into the next stage, and distortion at the intended signal level, since those parameters are not established by the gain-bandwidth figure alone.
Recommended
Current-Shunt Buffer
The MCP6273-E/P can buffer the output of a low-value current-sense shunt when the required signal bandwidth is within its 2 MHz gain-bandwidth capability. Its low typical quiescent current of 170 uA helps preserve efficiency in portable supply-control systems, and operation from 2.0 V supports low-voltage current monitoring. Keep shunt and feedback routing compact to minimize parasitic resistance, and verify input offset, bias current, common-mode range, and output swing against the smallest expected measurement. The amplifier should not exceed the electrical and thermal limits for the shunt current.
Recommended
Industrial Low-Voltage Control Signal
The MCP6273-E/P can amplify low-level control signals in compact industrial instrumentation when the design operates from a 2.0 V or higher supply. The 2 MHz gain-bandwidth product and 65-degree phase margin provide a practical basis for moderate-bandwidth feedback stages, while the PDIP package supports through-hole assembly and prototype rework. Confirm the device’s operating-temperature rating, noise behavior, output-current capability, and immunity to the exact noise and transient environment before using it in safety-critical or high-emissions equipment.
Recommended
Recommended Products Summary
Engineering reference data for MCP6273-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCP6283-E/P |
|---|---|---|
| Package | 8-pin PDIP | 8-pin PDIP |
| Brand | Microchip Technology | Microchip Technology |
| Input Swing | Rail-to-rail | Rail-to-rail |
| Output Swing | Rail-to-rail | Rail-to-rail |
| Mounting Type | Through-hole | Through-hole |
Key Differentiators
- Low-voltage single-supply operation (vs MCP6283-E/P)
- Defined family bandwidth and stability margin (vs MCP6283-E/P)
- Through-hole serviceability (vs MCP6283-E/P)
Design Notes
Do not treat the 2 MHz gain-bandwidth product as an unconditional operating-frequency limit for every gain setting. Use the 65-degree phase margin and the manufacturer’s stability guidance to select the feedback topology, then verify the intended closed-loop response with the actual source resistance and capacitive load. Excess output capacitance can reduce stability, so avoid long unprotected PCB traces and add resistance close to the output when the load requires it.
Budget 170 uA typical quiescent current before adding load and external-circuit consumption. Estimated: at a 2.0 V supply, the quiescent-only power is approximately 2.0 V multiplied by 170 uA, or 0.34 mW. Actual current varies with supply voltage, operating state, output load, and process conditions, so use the manufacturer minimum and maximum electrical characteristics for worst-case battery-life calculations.
Keep the differential input traces short, symmetric, and away from switching nodes and high-current return paths. Connect the feedback resistors close to the amplifier pins and provide a low-impedance ground reference for the bypass connection. Because the MCP6273-E/P supports operation from 2.0 V, confirm bypass-capacitor voltage rating and stability with the manufacturer’s recommended values rather than extrapolating from a higher-voltage circuit.
Compliance Information
No specific compliance declaration is stated for the exact MCP6273-E/P ordering code in the accessible product information. Confirm RoHS, REACH, halogen-free, conflict-minerals, and automotive-qualification status on the manufacturer product page or in the current material-declaration documentation.