MCP41100-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP41100-E/SN is a single-channel 100kΩ SPI digital potentiometer with 256 positions in an 8-pin SOIC package. Features 3-wire SPI interface and operates from 2.7 V to 5.5 V supply. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP41100-E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5000(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 MCP41100-E/SN?
- Single-channel 100 kΩ end-to-end resistance with 256 wiper positions for fine-resolution digital control
- 3-wire SPI interface supporting up to 10 MHz clock for fast microcontroller integration
- 2.7 V to 5.5 V supply range enabling use in both 3.3 V and 5 V embedded systems
What is MCP41100-E/SN used for?
The MCP41100 is a digitally-controlled potentiometer used to replace mechanical trimmers in analog calibration and signal conditioning circuits. It is widely deployed in programmable gain amplifiers, LCD contrast adjusters, and bias voltage tuning where remote SPI control from a microcontroller is preferred over manual adjustment. The compact SOIC-8 package simplifies integration into mixed-signal PCB designs requiring on-the-fly resistance adjustment.
What are the specifications of MCP41100-E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 10 |
| Bandwidth-Nom | 0.145kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 256 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 800ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MCP41100-E/SN datasheet?
MCP41100-E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP41100-E/SN?
Compatible alternatives and drop-in replacements for MCP41100-E/SN:
Digital Potentiometer, 1 Func, 100000ohm, 3-wire Serial Control Interface, 256 Positions, CMOS, PDSO8
Frequently Asked Questions
How many resistance positions does the MCP41100 provide and what is the step resolution for a 100 kΩ potentiometer?
The MCP41100 provides 256 wiper positions across its 100 kΩ end-to-end resistance, giving a step resolution of approximately 391 Ω per LSB. This fine granularity supports precise analog calibration in applications such as programmable gain stages, filter cutoff tuning, and closed-loop bias adjustment where resistor values must be set to within 0.4% increments.
Can the MCP41100 be daisy-chained with other SPI digital potentiometers on a shared 3-wire bus?
Yes, the MCP41100 supports SPI daisy-chaining through its SDO pin, allowing multiple devices to share a single CS line in serial cascade. Each device uses an 8-bit command plus 8-bit data word totaling 16 bits, and the SPI bus supports clock speeds up to 10 MHz, enabling rapid sequential programming of 4 or more potentiometers with minimal microcontroller bus overhead.
When is the MCP41100-E/SN preferred over a mechanical trimmer in a volume production calibration workflow?
The MCP41100-E/SN is preferred when calibration must be performed in-circuit via software after board assembly, eliminating the need for mechanical access. In volume production, automated calibration routines can program the 256-step wiper value over SPI in under 1 µs per write cycle, cutting calibration time by orders of magnitude compared to manual trimmer adjustment with a screwdriver.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.5157 | $1.52 |
| 1000+ | $1.5100 | $1510.00 |
| 5000+ | $1.5000 | $7500.00 |
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