MCP4232-503E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4232-503E/UN is a dual-channel SPI digital potentiometer with 128 steps and 50 kOhm end-to-end resistance in a compact MSOP-10 package. It supports increment/decrement control and non-volatile wiper position storage for reliable power-cycle retention. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4232-503E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7980(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 MCP4232-503E/UN?
- Dual-channel 50 kOhm digital potentiometer with 128 steps enabling independent fine-grained resistance adjustment over SPI in a single MSOP-10 package
- Non-volatile wiper position storage retains last programmed resistance settings across power cycles without requiring host MCU re-initialization
- SPI increment/decrement control interface for straightforward integration with any microcontroller, supporting real-time gain and bias tuning in analog signal chains
What is MCP4232-503E/UN used for?
The MCP4232-503E/UN is used for programmable gain and offset adjustment in analog amplifier circuits, calibration of sensor conditioning stages, and digitally controlled audio volume and tone controls. Its dual-channel configuration allows simultaneous independent resistance tuning of two analog signal paths from a single SPI bus, reducing chip count in multi-channel designs. Embedded systems requiring non-volatile trimmer replacement in LCD contrast control, LED brightness regulation, and PID gain adjustment also benefit from this device.
What are the specifications of MCP4232-503E/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| 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 |
Where can I find the MCP4232-503E/UN datasheet?
MCP4232-503E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4232-503E/UN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does MCP4232-503E/UN provide, and what resolution does each step represent for a 50 kOhm pot?
The MCP4232-503E/UN offers 128 wiper positions across a 50 kOhm end-to-end resistance, giving each step a nominal resolution of approximately 390 ohms. This allows fine-grained resistance control for gain setting in instrumentation amplifiers, bias adjustment in analog filters, and trimming calibration offsets in signal conditioning circuits without mechanical trimmer pots.
In a dual-supply analog circuit, how does MCP4232-503E/UN simplify replacing two mechanical trimmer potentiometers?
MCP4232-503E/UN integrates 2 independent digital potentiometer channels in a single MSOP-10 package, each with its own wiper controlled over a shared SPI bus. Replacing 2 mechanical trimmers with one MCP4232-503E/UN reduces board area, eliminates vibration and wear failure modes, and allows software-driven calibration at manufacturing or in the field. The non-volatile storage means the set resistance survives power cycles without re-writing from the host MCU.
For an audio design, what bandwidth limitation should engineers consider when using MCP4232-503E/UN?
The MCP4232-503E/UN has a nominal bandwidth of 0.2 kHz, which limits its use in audio signal path applications to sub-audio control functions such as volume stepping or DC bias adjustment rather than direct audio signal switching. For audio control applications above a few hundred Hz, a higher-bandwidth digital potentiometer should be selected, while MCP4232-503E/UN remains suitable for DC trim and bias control functions in audio circuits.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2000 | $1.20 |
| 100+ | $0.8900 | $89.00 |
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| 2500+ | $0.8020 | $2005.00 |
| 5000+ | $0.8000 | $4000.00 |
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