MCP618-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
MCP618-I/P is a rail-to-rail op-amp from Microchip with 190 kHz bandwidth, 100 dB typical CMRR, and a 2.3 V to 5.5 V single-supply range in an 8-pin PDIP package. Designed for low-power sensor signal conditioning. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP618-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7980(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output swings from 2.3 V to 5.5 V maximize dynamic range on single-supply 3.3 V and 5 V microcontroller systems
- 100 dB nominal CMRR (80 dB minimum) rejects common-mode interference from power-supply coupling and electromagnetic noise in sensor interfaces
- 190 kHz gain-bandwidth product supports audio-frequency and low-speed sensor amplification at unity gain without stability compensation
- 5 nA maximum input bias current protects high-impedance sources such as pH electrodes and humidity sensors from loading-induced measurement error
Applications
MCP618-I/P is suited for low-power sensor signal conditioning in portable and battery-operated instruments, including temperature sensor linearization, photodiode transimpedance amplifiers, and audio level detectors powered from a 3.3 V or 5 V microcontroller rail. Its rail-to-rail output swing allows the full ADC input range to be used without headroom loss in single-supply designs. The through-hole PDIP-8 package makes it ideal for prototyping, educational hardware, and low-volume production where soldering ease is prioritized.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 8 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.005 µA |
| Bias Current-Max (IIB) @25C | 0.005 µA |
| Common-mode Reject Ratio-Min | 80dB |
| Common-mode Reject Ratio-Nom | 100dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 150 µV |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | YES |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Slew Rate-Nom | 0.08V/us |
| Supply Current-Max | 0.025mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 190 |
| Voltage Gain-Min | 56200 |
| Wideband | NO |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gain-bandwidth product does MCP618-I/P offer, and at which gain stages is it still useful for audio-frequency signals?
MCP618-I/P has a 190 kHz gain-bandwidth product. At a gain of 10 the -3 dB bandwidth is approximately 19 kHz, which covers the full 20 Hz to 20 kHz audio band. At a gain of 100 the bandwidth drops to 1.9 kHz, suitable for low-frequency sensor amplification such as thermocouple conditioning or DC-coupled biomedical signals below 1 kHz.
How does MCP618-I/P's 100 dB CMRR help when amplifying a differential signal near a switching power supply?
A 100 dB CMRR means common-mode noise at the inputs is attenuated by a factor of 100,000 at the output. A 1 V common-mode swing from a nearby 100 kHz switching converter appears as only 10 µV at the output, well below the offset voltage of a typical 12-bit ADC LSB (about 1.2 mV on a 5 V range), preserving signal integrity without additional filtering.
Which supply voltage range makes MCP618-I/P compatible with both 3.3 V and 5 V microcontroller analog front ends?
MCP618-I/P operates from a single supply of 2.3 V to 5.5 V, covering both 3.3 V ARM Cortex-M systems and 5 V AVR or PIC microcontroller analog references. The rail-to-rail output can swing to within a few millivolts of each supply rail, ensuring that the ADC reference voltage is not wasted on headroom losses in the op-amp output stage.
When would MCP618-I/P in PDIP-8 be chosen over an SMT version for a prototype circuit board?
For hand-assembled prototype boards and university lab kits, the PDIP-8 package can be inserted into a breadboard or 0.1-inch-pitch perfboard without soldering, enabling rapid iteration of gain-setting resistors and filter networks. The 8-pin DIP also suits low-volume production runs under 500 units where the throughhole assembly cost per board (typically a few cents per 2-pin component) is less than the NRE for reflow stencils needed for SOIC or MSOP SMT packages.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1800 | $1.18 |
| 25+ | $0.9900 | $24.75 |
| 100+ | $0.8900 | $89.00 |
| 5000+ | $0.8800 | $4400.00 |
| 5040+ | $0.8000 | $4032.00 |
| 7500+ | $0.7980 | $5985.00 |
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