MCP4561-502E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4561-502E/MS is a single-channel 5 kΩ digital potentiometer from Microchip with non-volatile memory and an increment/decrement control interface supporting 2 kHz bandwidth. It provides 256 wiper positions accessible via I2C and retains the last wiper setting after power-down, housed in an 8-pin MSOP package. Suited for programmable gain, offset trimming, and calibration in embedded analog designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4561-502E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5800(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 MCP4561-502E/MS?
- Non-volatile memory retains the programmed wiper position after power removal, eliminating re-initialization on every power cycle
- 256 wiper positions over a 5 kΩ end-to-end resistance deliver 19.5 Ω resolution per step for fine analog parameter adjustment
- I2C increment/decrement control interface simplifies wiper adjustment from any microcontroller with standard 2-wire bus support
What is MCP4561-502E/MS used for?
The MCP4561-502E/MS is used in applications requiring programmatic adjustment of analog parameters such as gain control in amplifier circuits, frequency tuning in active filters, and DC offset correction in sensor signal conditioning chains. Its non-volatile memory is particularly valuable in calibration systems where a factory-set trim value must persist across power cycles without a backup battery or EEPROM. The device is also deployed in LCD display bias adjustment, audio volume control, and industrial process control loops where remote wiper position updates via I2C are needed.
What are the specifications of MCP4561-502E/MS?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE |
| 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 | 2.7V |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 5000Ω |
| 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 MCP4561-502E/MS datasheet?
MCP4561-502E/MS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4561-502E/MS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP4561-502E/MS support and what resistance step does each position represent?
The MCP4561-502E/MS provides 256 wiper positions across a 5 kΩ end-to-end resistance, giving a step resolution of approximately 19.5 Ω per increment. This fine resolution allows analog parameters such as gain or DC bias to be adjusted with good precision over the full resistance range, covering the common needs of sensor calibration and programmable filter tuning applications.
Why is the non-volatile memory feature of the MCP4561-502E/MS important for factory calibration workflows?
The non-volatile EEPROM inside the MCP4561-502E/MS stores the wiper position after it is written, so the calibrated resistance value is preserved indefinitely after power is removed. This eliminates the need for a separate external EEPROM or a host microcontroller re-initialization routine on every power-up, saving firmware complexity and ensuring the analog trim remains correct even after battery removal or unexpected power loss.
In which analog circuit trimming scenarios does a 5 kΩ digital potentiometer like the MCP4561-502E/MS provide the best performance?
A 5 kΩ end-to-end resistance is well matched to op-amp gain-setting networks where feedback resistor values in the 1 kΩ to 10 kΩ range are typical, as it minimizes loading on the amplifier output while keeping Johnson noise contribution below the circuit noise floor at 2 kHz bandwidth. It is also suitable for active filter tuning, I2C-controlled reference voltage adjustment, and LCD contrast bias trimming in embedded systems.
What does the MSOP-8 package of the MCP4561-502E/MS offer compared to an equivalent DIP-8 digital potentiometer?
The 8-pin MSOP package measures approximately 4.9 mm x 3.0 mm with a 0.65 mm pin pitch, which is about 70% smaller in footprint area than a standard DIP-8 package measuring 10.16 mm x 7.62 mm. This compact MSOP-8 form factor makes the MCP4561-502E/MS practical for modern surface-mount designs where DIP components would consume excessive board space in multi-channel calibration circuits.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8100 | $0.81 |
| 7+ | $0.6358 | $4.45 |
| 100+ | $0.6100 | $61.00 |
| 600+ | $0.6090 | $365.40 |
| 1000+ | $0.5900 | $590.00 |
| 5000+ | $0.5800 | $2900.00 |
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