MCP42100-E/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP42100-E/SL is a dual-channel 100 kΩ digital potentiometer from Microchip with 256-position 8-bit resolution and 3-wire SPI control in an SOIC-14 package. From $1.50 in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP42100-E/SL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2100(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 MCP42100-E/SL?
- Dual-channel 100 kΩ digital potentiometer with 256 positions per channel provides 8-bit wiper resolution for precise programmable resistance
- 3-wire SPI interface at up to 10 MHz allows fast microcontroller-driven resistance updates in real-time tuning applications
- SOIC-14 package integrates 2 independent potentiometer channels in a single IC, replacing 2 mechanical pots while adding digital control
What is MCP42100-E/SL used for?
MCP42100-E/SL is used in applications requiring programmable analog signal conditioning, such as gain adjustment in audio amplifiers, calibration offset control in sensor front-ends, and LCD contrast tuning in embedded displays. Its dual-channel SPI-controlled architecture lets a microcontroller set two independent resistance values simultaneously, making it effective in stereo audio volume controls and two-axis joystick trim circuits. The part also fits digitally adjustable voltage reference and filter tuning circuits in test and measurement equipment.
What are the specifications of MCP42100-E/SL?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 10 |
| Bandwidth-Nom | 0.145kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Number of Positions | 256 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.24 |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 | Thailand |
Where can I find the MCP42100-E/SL datasheet?
MCP42100-E/SL Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP42100-E/SL?
Compatible alternatives and drop-in replacements for MCP42100-E/SL:
Digital Potentiometer, 2 Func, 100000ohm, 3-wire Serial Control Interface, 256 Positions, CMOS, PDSO14
Frequently Asked Questions
What resistance resolution does MCP42100-E/SL deliver with its 256-position wiper, and how fine is each step?
MCP42100-E/SL has a 256-step (8-bit) wiper over a 100 kΩ end-to-end resistance, producing step sizes of approximately 391 Ω per LSB. This granularity is suitable for audio gain trimming and sensor offset calibration where sub-1% resistance increments are acceptable, though finer 10-bit resolution parts should be considered for precision analog applications requiring tighter voltage divider accuracy.
How does SPI control speed affect real-time resistance updates in MCP42100-E/SL gain-control circuits?
MCP42100-E/SL accepts SPI clock rates up to 10 MHz, allowing a full 16-bit command word to be clocked in under 2 µs. This means a microcontroller can update both wiper positions in under 4 µs, fast enough for audio volume ramping or PID gain scheduling at rates well above 100 kHz update loops. The 3-wire SPI bus (SCK, SDI, CS) requires only 3 MCU I/O pins.
In what scenario is MCP42100-E/SL a practical replacement for two mechanical trimpots in a production calibration fixture?
MCP42100-E/SL replaces 2 mechanical trimpots when factory calibration must be automated and stored digitally. A microcontroller writes specific 8-bit wiper codes via SPI to each of the 2 channels at the end of production test, eliminating manual trimming labor and achieving repeatable resistance settings within ±2 Ω. The SOIC-14 package occupies less than 50 mm² and eliminates the mechanical wear risk of physical trimpots over a product's lifetime.
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+ | $3.0700 | $3.07 |
| 100+ | $2.3400 | $234.00 |
| 1000+ | $2.2300 | $2230.00 |
| 5000+ | $2.2100 | $11050.00 |
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.”
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