MCP41050-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP41050-E/SN is a single-channel SPI digital potentiometer with 256 resistance steps and a 50 kΩ end-to-end resistance in an 8-pin SOIC package. It uses a 3-wire SPI serial interface and operates with a 0.28 kHz nominal bandwidth, enabling precise software-controlled resistance adjustment. Available from stock with Pb-free RoHS-compliant construction and worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP41050-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
Key Features
- Single-channel digital potentiometer with 256 resistance steps and 50 kΩ end-to-end resistance for fine-grained software-programmable voltage division
- 3-wire SPI serial interface enables direct control from any SPI-capable MCU with minimal GPIO usage and simple firmware integration
- Compact 8-pin SOIC-8 Pb-free package with 0.28 kHz bandwidth, suited for audio, calibration, and signal-conditioning applications
Applications
The MCP41050-E/SN is used in applications requiring digitally adjustable resistance, such as programmable gain amplifiers, LCD contrast and backlight control, audio volume control circuits, and sensor offset calibration systems. Its 3-wire SPI interface makes it easy to integrate with PIC, AVR, and ARM microcontrollers, enabling dynamic resistance adjustment under firmware control without mechanical potentiometers. The SOIC-8 package allows straightforward PCB assembly in automated production for consumer electronics and industrial instrumentation.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 10 |
| Bandwidth-Nom | 0.28kHz |
| 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 | 50000Ω |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps and what end-to-end resistance does the MCP41050-E/SN provide?
The MCP41050-E/SN offers 256 resistance steps with a 50 kΩ end-to-end (full-scale) resistance, giving each step an increment of approximately 196 Ω. This resolution is sufficient for most programmable gain, calibration, and volume-control applications in 8-bit embedded systems.
Which serial interface does the MCP41050-E/SN use, and what does that mean for MCU integration effort?
The MCP41050-E/SN uses a 3-wire SPI serial interface, meaning only 3 signal lines (CS, SCK, SI) are needed to connect it to an SPI-capable microcontroller. This minimal wiring reduces PCB routing complexity and allows the device to share a common SPI bus with other peripherals.
For a programmable gain amplifier circuit operating at audio frequencies, is the MCP41050-E/SN's 0.28 kHz bandwidth sufficient?
The MCP41050-E/SN has a nominal bandwidth of 0.28 kHz (280 Hz), which is adequate for low-frequency control signals, DC offset calibration, and slow-changing gain adjustment, but it is not suited for high-speed audio signal paths; it is best used in the feedback network of an op-amp rather than directly in the audio signal path.
When would a designer choose the MCP41050-E/SN over a dual-channel digital potentiometer like the MCP42050?
A designer chooses the single-channel MCP41050-E/SN over the MCP42050 when only 1 adjustable resistance is needed, saving the 8-pin SOIC-8 footprint and reducing cost; the MCP42050 adds a second independent 50 kΩ 256-step channel in the same package size, which is unnecessary for single-axis gain or contrast control.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.0600 | $2.06 |
| 100+ | $1.5700 | $157.00 |
| 1000+ | $1.5100 | $1510.00 |
| 5000+ | $1.5000 | $7500.00 |
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