MCP4232-104E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4232-104E/UN is a dual-channel SPI-controlled digital potentiometer with 128 resistance steps and 100 kΩ end-to-end resistance in a 10-pin MSOP package. Supports increment/decrement interface for precise analog adjustment. Available in stock worldwide.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4232-104E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7930(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 MCP4232-104E/UN?
- Dual independent 128-step digital potentiometer channels with 100 kΩ end-to-end resistance for fine-grained analog control
- SPI-compatible serial interface with increment/decrement control mode enabling simple microcontroller integration
- Compact 10-pin MSOP package occupying minimal PCB area for space-constrained analog signal conditioning designs
What is MCP4232-104E/UN used for?
The MCP4232-104E/UN is used in applications requiring software-controlled analog adjustment, such as gain tuning in audio amplifiers, offset calibration in sensor interfaces, and programmable filter cutoff frequency adjustment. Its dual-channel configuration allows simultaneous control of two independent resistance paths in a single IC. The SPI interface enables direct connection to microcontrollers in industrial calibration equipment, medical devices, and consumer electronics.
What are the specifications of MCP4232-104E/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.1kHz |
| 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 | 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 MCP4232-104E/UN datasheet?
MCP4232-104E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4232-104E/UN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does the MCP4232-104E/UN provide and what is the minimum step size at 100 kΩ full scale?
The MCP4232-104E/UN provides 128 discrete resistance steps across a 100 kΩ end-to-end resistance range, resulting in a step resolution of approximately 781 Ω per increment. This fine granularity is sufficient for precision analog tuning in sensor offset calibration, gain adjustment, and programmable voltage divider applications where resistor values must be set digitally.
Which microcontroller interface does the MCP4232-104E/UN use and how does it connect to a 3.3 V MCU?
The MCP4232-104E/UN uses an SPI-compatible 4-wire interface (CS, SCK, SDI, SDO) for increment and decrement control commands. It operates from a supply of 1.8 V to 5.5 V, making it directly compatible with 3.3 V MCU systems without level shifters. The 10-pin MSOP package requires minimal routing space, simplifying PCB layout next to a microcontroller.
What distinguishes the MCP4232-104E/UN from the MCP4131 single-channel variant for dual-output applications?
The MCP4232-104E/UN integrates 2 independent potentiometer channels in the same 10-pin MSOP footprint, whereas the MCP4131 provides only 1 channel. Using a dual-channel MCP4232 instead of two MCP4131 devices reduces PCB area by roughly 50%, cuts BOM cost, and halves the number of SPI chip-select lines required, which is beneficial in designs with limited GPIO availability.
In what calibration scenarios does the MCP4232-104E/UN replace a mechanical trimmer potentiometer?
The MCP4232-104E/UN replaces mechanical trimmers in applications where factory calibration must be stored digitally and recalled at power-up, such as sensor offset compensation in weighing systems, ADC reference voltage trimming, or audio volume control in consumer electronics. Unlike a mechanical 100 kΩ trimmer, the digital version can be adjusted over I/O pins in-system, eliminating the need for physical access to the PCB after assembly.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2000 | $1.20 |
| 100+ | $0.8900 | $89.00 |
| 1000+ | $0.8700 | $870.00 |
| 5000+ | $0.8000 | $4000.00 |
| 7500+ | $0.7980 | $5985.00 |
| 10000+ | $0.7930 | $7930.00 |
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