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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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
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+ | $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.”