MCP4261-104E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip MCP4261-104E/P is a dual-channel digital potentiometer with 257 positions and 100 kOhm end-to-end resistance, controlled via SPI. It operates from 1.8 V to 5.5 V supply and features non-volatile memory to retain wiper settings. Available in 14-pin PDIP package with 0.1 kHz bandwidth.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4261-104E/P Datasheet PDF
- Category
- Integrated Circuit
- 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 100 kOhm digital potentiometer with 257 wiper positions for precise resistance control
- SPI-compatible serial interface supporting INCREMENT/DECREMENT commands up to 10 MHz clock
- Non-volatile wiper position memory retains settings through power cycles without external EEPROM
- Wide supply voltage range of 1.8 V to 5.5 V for flexible system integration
- 14-pin PDIP package enabling easy breadboard prototyping and through-hole assembly
Applications
The MCP4261-104E/P is widely used in audio volume and tone control circuits where precise, software-controlled resistance adjustment is required. It serves industrial calibration and gain-setting applications in sensor signal conditioning systems that demand repeatable wiper positioning. The device is also used in portable consumer electronics for LCD contrast adjustment and LED brightness control due to its low supply voltage operation.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5V |
| Supply Current-Max | 1mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 100000Ω |
| ## MCP4261-104E/P Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP4261-104E/P:
Frequently Asked Questions
What is the resistance resolution of the MCP4261-104E/P and how does it affect circuit precision?
The MCP4261-104E/P provides 257 wiper positions across a 100 kOhm end-to-end resistance, giving a step resolution of approximately 390 ohms per step. This fine resolution allows precise gain and volume adjustments in analog circuits with minimal quantization error.
Which communication protocol does the MCP4261-104E/P use, and what clock speeds are supported?
The MCP4261-104E/P uses an SPI-compatible 3-wire serial interface supporting clock speeds up to 10 MHz. It accepts INCREMENT, DECREMENT, and direct address write commands, making it easy to integrate with any microcontroller that has an SPI peripheral, including 3.3 V and 5 V logic systems.
How does the non-volatile memory in the MCP4261-104E/P benefit power-cycling applications?
The non-volatile EEPROM stores the wiper position so that the last programmed resistance value of up to 100 kOhm is restored automatically after power-up. This eliminates re-initialization code on startup and is valuable in battery-powered devices and industrial calibration equipment where consistent power-on resistance is critical.
Can the MCP4261-104E/P operate in a 3.3 V microcontroller system alongside 5 V analog rails?
Yes. The device operates from 1.8 V to 5.5 V, so it can be powered at 3.3 V for digital logic compatibility while the wiper handles signals within the rated supply range. The 14-pin PDIP package allows easy mixed-voltage prototyping on standard breadboards with 2.54 mm pin spacing.
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