MCP4132-502E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4132 is a single-channel SPI digital potentiometer with 128 steps and a 5 kOhm end-to-end resistance, offering volatile wiper storage and up/down increment control in an SOIC-8 package. Ideal for gain and offset trimming applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4132-502E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5660(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 MCP4132-502E/SN?
- Single-channel 5 kOhm digital potentiometer with 128 wiper positions providing fine-grained resistance adjustment
- SPI-compatible increment/decrement interface enabling simple 2-wire MCU control without address decoding overhead
- Compact SOIC-8 package with 2.7 V to 5.5 V supply range for mixed-voltage analog trimming circuits
What is MCP4132-502E/SN used for?
The MCP4132-502E/SN is used for digitally controlled gain adjustment in audio preamps, sensor signal-conditioning circuits, and LCD contrast control where a 5 kOhm variable element with 128-step resolution replaces a mechanical potentiometer. Its SPI interface allows real-time wiper adjustment from any microcontroller running at 3.3 V or 5 V without extra level-translation hardware. Calibration trim circuits in industrial meters and LED dimming controllers also benefit from its single-supply operation down to 2.7 V.
What are the specifications of MCP4132-502E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| 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 |
| 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 | 1.27mm |
| Terminal Position | DUAL |
| 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 | Mainland China, Thailand |
Where can I find the MCP4132-502E/SN datasheet?
MCP4132-502E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4132-502E/SN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does the MCP4132 provide, and what step size does that yield at 5 kOhm full-scale?
The MCP4132 offers 128 wiper positions across a 5 kOhm end-to-end resistance, giving a nominal step size of approximately 39 Ohm per increment. This fine resolution allows precise gain-trim loops in op-amp circuits requiring less than 1% adjustment accuracy.
What SPI clock speed does the MCP4132 support, and how does increment/decrement control work in practice?
The MCP4132 accepts SPI clock rates up to 10 MHz for register writes. Its increment/decrement command interface sends a single byte per wiper step, allowing a microcontroller to traverse all 128 positions in under 13 µs — fast enough for real-time audio volume sweeps.
For a battery-powered calibration tool, what supply voltage range does the MCP4132 support?
The MCP4132 operates from 2.7 V to 5.5 V, making it compatible with both 3 V coin-cell-powered instruments and 5 V industrial control boards without external regulators. Its typical quiescent current is below 1 µA in standby, extending battery life in portable trim fixtures.
How does the MCP4132 differ from the MCP4131 and when should each be chosen?
The MCP4132 is a single-channel potentiometer with volatile wiper storage (wiper resets to mid-scale at power-up), whereas the MCP4131 shares the same 5 kOhm / 128-step architecture but uses an SPI chip-select scheme compatible with daisy-chaining multiple devices. Choose MCP4132 for simple single-device trims; choose MCP4131 when 2 or more potentiometers share a single SPI bus without extra chip-select lines.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8400 | $0.84 |
| 25+ | $0.7000 | $17.50 |
| 100+ | $0.6400 | $64.00 |
| 1000+ | $0.6100 | $610.00 |
| 7500+ | $0.5680 | $4260.00 |
| 10000+ | $0.5660 | $5660.00 |
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