MCP6144-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP6144-I/ST is a quad rail-to-rail op-amp with 1.6 V minimum supply, 100 kHz gain-bandwidth product, and 5 nA maximum bias current. Features 80 dB typical CMRR and voltage-feedback architecture in TSSOP-14. Available worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP6144-I/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3800(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP6144-I/ST?
- Operates from 1.6 V single supply enabling use in ultra-low-voltage battery and energy-harvesting circuits where standard 2.7 V op-amps cannot function
- Quad op-amp with 5 nA maximum input bias current and 80 dB CMRR, ideal for high-impedance sensor signal conditioning with minimal loading error
- Rail-to-rail input and output swing on a 1.6 V to 6 V supply in TSSOP-14 package, integrating 4 amplifiers in the same footprint as a single traditional op-amp
What is MCP6144-I/ST used for?
The MCP6144-I/ST is designed for portable medical devices, wearable biosensors, and battery-powered data loggers that require multiple low-power amplifier channels from a single-cell supply as low as 1.6 V. Its 5 nA bias current suits high-impedance electrochemical and pH sensors where input loading would degrade measurement accuracy. The quad configuration and TSSOP-14 package allow four independent signal conditioning stages within a minimal PCB area, supporting multi-channel ADC front ends in handheld instruments.
What are the specifications of MCP6144-I/ST?
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.005 µA |
| Common-mode Reject Ratio-Min | 62dB |
| Common-mode Reject Ratio-Nom | 80dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 3000 µV |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 24000V/us |
| Supply Current-Max | 0.004mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Unity Gain BW-Nom | 100 |
| Voltage Gain-Min | 56200 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia, Philippines, Thailand |
Where can I find the MCP6144-I/ST datasheet?
MCP6144-I/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6144-I/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum supply voltage for MCP6144-I/ST, and which battery chemistries does that support?
MCP6144-I/ST operates from a minimum single-supply voltage of 1.6 V, which is below the terminal voltage of a discharged AAA alkaline cell (approximately 1.8 V) and compatible with a nearly exhausted CR2032 coin cell. This lets designers squeeze maximum runtime from primary cells before the supply rail drops below the amplifier's functional threshold.
How does the 5 nA input bias current of MCP6144-I/ST benefit high-impedance sensor interfaces?
With a maximum input bias current of 5 nA, MCP6144-I/ST introduces negligible loading on sensors with source impedances up to several megaohms. For a 1 MΩ source resistance, the worst-case DC offset error is only 5 nA × 1 MΩ = 5 mV, compared to tens of millivolts for bipolar-input op-amps. This makes it well suited for pH electrodes, photodiodes, and capacitive humidity sensors.
For a 4-channel ECG front end, why choose MCP6144-I/ST over four single op-amps with the same 100 kHz bandwidth?
MCP6144-I/ST integrates 4 matched amplifiers in one TSSOP-14 package, reducing PCB area by roughly 75% compared to four individual SOT-23 or SOIC-8 devices. Matched internal characteristics (80 dB CMRR, ±0.05 mV typical offset) improve channel-to-channel consistency in differential ECG amplification, and the shared die reduces thermal gradients that would cause offset drift differences between channels.
What closed-loop gain is reliably achievable with MCP6144-I/ST at audio and low-frequency sensor bandwidths?
With a 100 kHz gain-bandwidth product, MCP6144-I/ST supports a closed-loop gain of 10 V/V up to 10 kHz, or gains above 100 V/V at frequencies below 1 kHz. For a DC to 1 kHz sensor amplifier requiring a gain of 50 V/V, the closed-loop bandwidth is 100 kHz ÷ 50 = 2 kHz, comfortably covering the signal band with over an octave of margin.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8300 | $1.83 |
| 5+ | $1.6900 | $8.45 |
| 25+ | $1.5200 | $38.00 |
| 96+ | $1.4100 | $135.36 |
| 100+ | $1.3900 | $139.00 |
| 5000+ | $1.3800 | $6900.00 |
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