MCP602-E/SN - 2.8 MHz Dual RRO Op Amp | Microchip
MPN: MCP602-E/SN ✓ ActiveMCP602-E/SN Overview
An operational amplifier, or op amp, is a voltage-gain stage used to amplify weak signals, buffer sensors, perform active filtering, compare voltages, and drive analog-to-digital or digital-to-analog converters. The MCP602 belongs to the CMOS operational-amplifier hierarchy, combining low bias current, rail-to-rail output swing, unity-gain stability, and relatively high speed in a low-power analog signal-conditioning IC.
The headline features suit compact, low-power analog systems. Its 2.8 MHz gain-bandwidth product supports signal bandwidths well below the unity-gain limit, while the 2.3 V/us typical slew rate provides adequate response for sensor signals and general-purpose instrumentation. Rail-to-rail output swing improves usable output range on low-voltage supplies, and the input range includes ground, allowing operation near the lower supply rail when suitable biasing is applied.
Microchip's advanced CMOS process gives the MCP602 low bias current, high open-loop gain, and low typical operating current of 230 uA per amplifier. The dual configuration provides two amplifiers in one 8-pin SOIC, reducing board area compared with two separate single-amplifier packages. Unity-gain stability permits direct voltage-follower use without an external compensation network.
Typical uses include industrial process-control loops, portable and battery-operated instruments, data-acquisition front ends, test equipment, and low-end audio signal paths. Each channel can amplify a sensor output, buffer a high-impedance source, implement an active filter, or drive a converter input. The combination of low power and rail-to-rail output is especially useful for systems powered from 3.3 V or 5 V supplies.
Designers should verify the input common-mode range, output swing, capacitive-load stability, noise, and output-current capability for the exact operating conditions. Place the bypass capacitor close to the supply pins, use a solid ground reference, and avoid excessive loading on the output. The SOIC outline permits standard surface-mount assembly, but exposed-pad thermal considerations do not apply to this package.
This page combines the manufacturer product information with package, pinout, comparison, selection, and practical circuit guidance to help engineers evaluate the MCP602-E/SN without reconstructing the complete design context from separate catalog entries.
Drop-in alternatives for MCP602-E/SN — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCP602-E/SN (same form factor and footprint) — differing in Gain-Bandwidth Product, Mounting Type, Package, Slew Rate, Typical Operating Current.
MCP602-I/SN
✅ Drop-InContact for price
View Datasheet →MCP602-E/SN Maximum Ratings & Electrical Characteristics
| Amplifier Type | General-purpose operational amplifier |
| Number of Circuits | 2 circuits |
| Technology | CMOS |
| Supply Voltage Range | 2.7 V to 6.0 V |
| Gain-Bandwidth Product | 2.8 MHz typical |
| Slew Rate | 2.3 V/us typical |
| Typical Operating Current | 230 uA per amplifier |
| Offset Voltage | Less than 2 mV |
| Output Swing | Rail-to-rail |
| Input Common-Mode Range | Includes ground |
| Gain Configuration | Unity-gain stable |
| Bias Current | Low bias current |
| Open-Loop Gain | High open-loop gain |
| Package | 8-pin SOIC, 0.154 in and 3.90 mm width |
| Mounting Type | Surface-mount |
| Shipping Package | Tube |
MCP602-E/SN Pin Configuration
| Pin 1 | OUTA — Amplifier A output |
| Pin 2 | INA- — Amplifier A inverting input |
| Pin 3 | INA+ — Amplifier A non-inverting input |
| Pin 4 | V- — Negative supply or ground connection |
| Pin 5 | INB+ — Amplifier B non-inverting input |
| Pin 6 | INB- — Amplifier B inverting input |
| Pin 7 | OUTB — Amplifier B output |
| Pin 8 | V+ — Positive supply connection |
Typical Applications
MCP602-E/SN is suitable for 6 applications: Industrial Sensor Signal Conditioning, Battery-Powered Portable Instruments, Data-Acquisition Front End, Low-End Audio Signal Path, Test and Measurement Buffering, Process-Control Monitoring.
Industrial Sensor Signal Conditioning
The MCP602-E/SN fits low-power industrial sensor conditioning because each channel combines low bias current, a 2.8 MHz typical gain-bandwidth product, and unity-gain stability. One amplifier can buffer a high-impedance sensor while the other provides gain or active filtering, reducing the number of separate analog packages. Its 230 uA typical operating current per amplifier and rail-to-rail output help preserve signal range on 3.3 V or 5 V control boards. Verify the sensor impedance, common-mode range, output loading, and noise requirements before finalizing the gain network.
Recommended
Battery-Powered Portable Instruments
The MCP602-E/SN is appropriate for portable instruments where each amplifier operates from only 230 uA typical while delivering a 2.8 MHz typical gain-bandwidth product. The dual amplifier can form a gain-and-filter stage or two independent low-power signal paths in one 8-pin SOIC. Rail-to-rail output improves utilization of a 3.3 V battery rail, and the input range includes ground supports signals near the lower rail. Account for input bias-current error, output-current demand, shutdown requirements, and battery leakage during final design review.
Recommended
Data-Acquisition Front End
The MCP602-E/SN provides a practical analog front end for slow and moderate-speed data-acquisition channels because its 2.8 MHz typical gain-bandwidth product is substantially above the bandwidth of many multiplexed sensor systems. The two channels can amplify a sensor and buffer an ADC input, while 230 uA typical current per amplifier supports distributed low-power measurement. Check settling behavior for the selected gain, ADC input capacitance, converter input range, and sampled signal bandwidth. Use short, guarded routing from the amplifier output to the converter to reduce noise pickup.
Recommended
Low-End Audio Signal Path
The MCP602-E/SN can handle low-end audio preamplification, buffering, and active filtering where rail-to-rail output maximizes the available signal swing. Its 2.3 V/us typical slew rate and 2.8 MHz typical gain-bandwidth product cover many small-signal audio stages, while the dual configuration supports left and right channels in one 8-pin SOIC. The 230 uA typical current per amplifier suits compact systems, although it is not a specialized low-noise audio amplifier. Confirm distortion, noise, channel matching, and load-driving requirements with the application measurements.
Recommended
Test and Measurement Buffering
The MCP602-E/SN is useful for input buffering and active filtering in compact test and measurement equipment. The 2.8 MHz typical gain-bandwidth product supports moderate-bandwidth analog nodes, while low bias current helps when probing resistive dividers or sensor-like sources. Its dual layout allows one channel to buffer the unknown input and the other to amplify a reference or provide filtering. The unity-gain-stable architecture simplifies voltage-follower use. Confirm input bias current, capacitive loading, output-current limits, and the required settling time for the test bandwidth.
Recommended
Process-Control Monitoring
The MCP602-E/SN fits process-control monitoring circuits requiring two general-purpose analog functions in one compact SOIC. A channel can condition a scaled sensor voltage, while the other can buffer a reference or drive a monitoring threshold stage. With 230 uA typical operating current per amplifier, the device supports distributed low-power monitoring, and its 2.8 MHz typical gain-bandwidth product exceeds the bandwidth of many process signals. Confirm the control-loop bandwidth, input common-mode range, output drive, noise, and isolation requirements before selecting external resistor and capacitor values.
Recommended
Recommended Products Summary
Engineering reference data for MCP602-E/SN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCP602-I/SN |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 8-pin SOIC | 8-pin SOIC - same |
| Number of Amplifiers | 2 circuits | 2 circuits |
| Supply Voltage Range | 2.7 V to 6.0 V | 2.7 V to 6.0 V |
| Gain-Bandwidth Product | 2.8 MHz typical | 2.8 MHz typical |
| Typical Operating Current | 230 uA per amplifier | 230 uA per amplifier |
| Offset Voltage | Less than 2 mV | Less than 2 mV |
| Output Swing | Rail-to-rail | Rail-to-rail |
| Temperature Grade | E grade | I grade |
Key Differentiators
- Two amplifiers in one compact SOIC (vs MCP602-I/SN)
- Low-power operation for portable analog systems (vs MCP602-I/SN)
- Rail-to-rail output on low-voltage supplies (vs MCP602-I/SN)
Design Notes
Decouple the supply pins with a local ceramic bypass capacitor and connect it directly to the ground plane. Place the capacitor as close to the V+ pin as practical to limit supply impedance at high frequencies. The specified 230 uA typical current applies per amplifier, so the approximate combined current is 460 uA when both channels are active. Calculate the actual worst-case dissipation from supply voltage and output-current demand before validating the thermal margin.
Route the two channels symmetrically where possible, maintain a continuous ground reference beneath the SOIC, and keep feedback components close to their associated input pins. Avoid placing long, high-impedance feedback traces beside switching or digital signals. The MCP602 is unity-gain stable, but high source capacitance and heavy capacitive loading can still affect stability. Check the output against the load and include isolation resistance when driving long cables or large capacitances.
Do not interpret rail-to-rail output as unrestricted input range. Although the MCP602 input range includes ground, each input must remain within the limits specified for the actual supply voltage, output state, and temperature grade. Also account for offset error in precision gain stages and check settling at the selected closed-loop gain. The 2.8 MHz gain-bandwidth product is a typical small-signal value and should not be treated as guaranteed usable bandwidth for every gain and load condition.
Compliance Information
The manufacturer product page does not expose a complete environmental or material-compliance declaration in its product summary. Verify current RoHS, REACH, lead-free, halogen-free, and conflict-minerals documentation with Microchip before production release.
