MCP4231-503E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip MCP4231-503E/P is a dual-channel SPI digital potentiometer with 50 kΩ end-to-end resistance and 256 wiper positions. Features increment/decrement control interface and wide 1.8 V to 5.5 V operating range. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4231-503E/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2161(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
- Dual-channel digital potentiometer with independent wiper control over SPI interface
- 50 kΩ end-to-end resistance with 256 wiper positions for fine-grained adjustment
- Wide supply voltage range of 1.8 V to 5.5 V enabling use across 3.3 V and 5 V systems
- Non-volatile wiper position memory retains settings through power cycles
Applications
The MCP4231-503E/P is widely used in audio volume control, programmable gain amplifiers, and calibration circuits requiring precise resistance adjustment. Its dual-channel design suits differential signal conditioning and balanced audio path attenuation. Industrial instrumentation, sensor calibration systems, and communication equipment benefit from its SPI-controlled 50 kΩ potentiometer with 256-step resolution.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-14 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| 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 | NO |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 50000Ω |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the end-to-end resistance and resolution of the MCP4231-503E/P?
The MCP4231-503E/P provides a 50 kΩ end-to-end resistance with 256 wiper positions (8-bit resolution), allowing incremental resistance steps of approximately 195 Ω per step. This fine granularity makes it suitable for precise analog signal conditioning applications.
Which supply voltage rails are compatible with the MCP4231-503E/P in a mixed-voltage design?
The MCP4231-503E/P operates across a 1.8 V to 5.5 V supply range, making it compatible with both 3.3 V and 5 V logic systems. This flexibility allows designers to use the device in low-power portable applications as well as standard 5 V industrial control systems without level-shifting circuitry.
How does the MCP4231-503E/P compare to a single-channel potentiometer when designing a stereo audio volume control?
The MCP4231-503E/P integrates 2 independent channels in a single 14-pin PDIP package, replacing two separate potentiometers and reducing board area by approximately 40%. Both channels share a single SPI bus but maintain independent wiper registers, enabling simultaneous or sequential control of left and right audio channels with matched 50 kΩ resistance.
What bandwidth limitation should engineers consider when using MCP4231-503E/P in AC signal paths?
The MCP4231-503E/P has a nominal bandwidth of 0.2 kHz, which constrains its use to low-frequency DC or very low-frequency AC signal paths. For applications above audio sub-bass frequencies, designers should evaluate higher-bandwidth digital potentiometers or use the device only in DC bias and calibration roles rather than active signal conditioning.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2161 | $0.22 |
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