MCP4531-104E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4531-104E/MS is a single-channel 128-step I2C digital potentiometer from Microchip with 100 kΩ end-to-end resistance and MSOP-8 package. Enables software-controlled resistance adjustment for gain, offset, and calibration circuits. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4531-104E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6100(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
- 128-step resolution for fine resistance control in 100 kΩ range
- 2-wire I2C serial interface simplifies microcontroller integration
- Non-volatile memory optional in family variants retains wiper position on power-off
- Compact MSOP-8 package with 0.65 mm pitch suits space-constrained PCBs
- 2 kHz bandwidth supports audio and low-frequency signal path adjustment
- Also available in 5 kΩ and 10 kΩ and 50 kΩ resistance variants for design flexibility
Applications
The MCP4531-104E/MS is used in applications requiring digitally programmable resistance for gain trimming, bias adjustment, and offset calibration in op-amp circuits, LCD contrast control, and programmable filter cutoff tuning. Its I2C interface allows a microcontroller to adjust the 100 kΩ resistance across 128 discrete steps without manual intervention, making it valuable in automatic calibration routines for industrial sensors and consumer electronics. The MSOP-8 footprint and single-supply operation also fit portable instruments and IoT nodes where board space and power budget are tightly constrained.
Specifications
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 25Weeks |
| YTEOL | 9 |
| Additional Feature | THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM |
| Bandwidth-Nom | 2kHz |
| Control Interface | 2-WIRE SERIAL |
| 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 | 3V |
| 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 | 100000Ω |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many discrete resistance steps does MCP4531-104E/MS provide and what step size does this correspond to?
The MCP4531-104E/MS offers 128 wiper steps across a 100 kΩ end-to-end resistance, giving a nominal step size of approximately 781 Ω per increment. This resolution allows fine-grained control of analog circuit parameters such as amplifier gain, filter cutoff frequency, or reference voltage, without requiring physical trimmer potentiometers that can drift over time or require manual recalibration during production.
How does MCP4531-104E/MS interface with a microcontroller and what bus speed does it support?
The MCP4531-104E/MS uses a 2-wire I2C serial interface compatible with standard I2C bus speeds, including 100 kHz standard mode and 400 kHz fast mode, enabling straightforward integration with any microcontroller that has an I2C peripheral. The device also supports hardware address selection so that multiple MCP4531 units can share the same I2C bus, useful in systems needing independent control of several gain-setting or bias-adjustment potentiometers.
For an audio tone-control circuit, is MCP4531-104E/MS bandwidth sufficient and can it handle audio signal levels?
The MCP4531-104E/MS has a nominal -3 dB bandwidth of 2 kHz, which covers the critical audio range for bass and treble tone controls in consumer electronics. The 100 kΩ resistance and MSOP-8 package suit passive tone-control networks operating at typical audio signal levels of a few hundred millivolts peak, while the 128 steps allow perceptible incremental volume or tone adjustments under software control via the I2C interface.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8400 | $0.84 |
| 25+ | $0.7000 | $17.50 |
| 86+ | $0.6860 | $59.00 |
| 100+ | $0.6400 | $64.00 |
| 1000+ | $0.6100 | $610.00 |
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