MCP4651-103E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4651-103E/ST is a dual-channel 8-bit digital potentiometer with 10 kΩ end-to-end resistance and 257 wiper positions, controlled via I2C with non-volatile memory, packaged in a 14-pin TSSOP for programmable gain and calibration circuits.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4651-103E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5870(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP4651-103E/ST?
- Dual-channel 8-bit digital potentiometer with 257 wiper positions and 10 kΩ end-to-end resistance for independent two-channel programmable resistance control
- Non-volatile wiper position storage retaining the last programmed value through power cycles, eliminating re-initialization on every power-up
- I2C 2-wire serial interface supporting multiple address configurations for multi-device bus sharing in complex analog calibration systems
- Available in 5 kΩ, 10 kΩ, and 50 kΩ resistor array variants within the MCP4651 family to match diverse impedance requirements
What is MCP4651-103E/ST used for?
The MCP4651-103E/ST is designed for dual-channel programmable gain amplifiers, DC offset calibration circuits, and LCD contrast or audio volume controls where non-volatile wiper retention is essential. Its I2C interface and 257-step resolution enable fine trimming of analog signal paths in industrial sensor transmitters and precision instrumentation without mechanical trimmers. The TSSOP-14 package allows placement alongside op-amps and instrumentation amplifiers on compact mixed-signal PCBs.
What are the specifications of MCP4651-103E/ST?
| Manufacturer Package Code | TSSOP-14 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM |
| Bandwidth-Nom | 2kHz |
| Control Interface | 2-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5.5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 100000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines, Thailand |
Where can I find the MCP4651-103E/ST datasheet?
MCP4651-103E/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4651-103E/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does MCP4651-103E/ST offer and what resistance step size does each increment represent across 10 kΩ?
The MCP4651-103E/ST provides 257 wiper positions across its 10 kΩ end-to-end resistance, yielding a nominal step size of approximately 39 Ω per increment, enabling precise programmable resistance adjustments for gain trimming, DC offset calibration, and analog signal conditioning applications.
Does the MCP4651-103E/ST retain its wiper position after a power cycle, and why does that matter for calibration use cases?
Yes, the MCP4651-103E/ST stores wiper positions in on-chip non-volatile memory, so the calibrated resistance setting is retained through power cycling, brownouts, and reset events, eliminating the need for a microcontroller to re-write calibration values every time the system powers on.
In a dual-amplifier gain stage, how does MCP4651-103E/ST enable independent control of two channels from a single I2C address?
The MCP4651-103E/ST contains 2 independent potentiometer channels each with its own 8-bit wiper register accessible via distinct register addresses over the shared I2C bus, allowing a microcontroller to set different resistance values on each channel in separate write transactions without requiring two separate ICs or additional chip-select lines.
How does the 2 kHz bandwidth of MCP4651-103E/ST restrict its use in audio or high-frequency signal path applications?
With a nominal bandwidth of 2 kHz, the MCP4651-103E/ST is best suited for DC to low-frequency applications such as bias trimming, volume control at low audio rates, and slow calibration loops; for wideband audio above 2 kHz or RF signal attenuation, a dedicated audio-grade or high-bandwidth digital potentiometer with MHz-range bandwidth would be required.
Related Guides
LM34966QPWPRQ1 Converter Selection and Procurement Guide
Select LM34966QPWPRQ1 and compare four power-management paths using topology, compatibility, qualification, and procurement checks.
Oct 27, 2026
ERJ-2RKF49R9X Design Guide for PCB Validation
Validate a 49.9 ohm resistor position with power calculations, termination topology, thermal checks, and controlled PCB measurements.
Oct 27, 2026
LM34966QPWPRQ1 Design Guide for SEPIC Power Supplies
Design an LM34966QPWPRQ1 SEPIC supply with practical current, voltage, magnetic, thermal, and validation checks.
Oct 26, 2026
NSI50350AST3G Selection Guide: Package, Current and Procurement Fit
Select NSI50350AST3G and screen four NSI alternatives by current, package, thermal limits, compliance evidence, and traceable supply.
Oct 26, 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.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5870 | $0.59 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit