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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| 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 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”