MCP4532-103E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4532-103E/MS is a single-channel 10 kΩ digital potentiometer with 129-position linear resolution and I2C 2-wire interface in an 8-pin MSOP package. It offers non-volatile wiper position storage and 2 kHz bandwidth for analog signal control and calibration applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4532-103E/MS Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 129-position linear taper with 10 kΩ end-to-end resistance and 2 kHz -3 dB bandwidth for precision voltage division and signal attenuation
- I2C 2-wire serial interface with hardware address pins allows up to 8 devices on a single bus, minimizing wiring in multichannel designs
- Non-volatile wiper memory retains position through power cycles, eliminating startup initialization routines in calibration and gain-setting applications
Applications
The MCP4532-103E/MS serves as a programmable gain element or DC bias adjustment in analog front-end circuits for sensors, audio processing, and measurement equipment. Its I2C interface and 129-step resolution enable fine-grained software-controlled calibration of amplifier gain, filter cutoff, and reference voltage trimming without mechanical adjustments. Medical instrumentation and industrial transmitters benefit from its non-volatile wiper memory, ensuring consistent analog output after power cycling.
Specifications
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 11Weeks |
| 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 |
| 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
How many discrete resistance steps does the MCP4532-103E/MS offer and what is the step size for a 10 kΩ device?
The MCP4532-103E/MS provides 129 wiper positions across a 10 kΩ end-to-end resistance, giving a resolution of approximately 78 Ω per step. This fine granularity supports precision gain trimming and DC offset correction in 12-bit and 16-bit ADC front-end circuits where coarser 32-position or 64-position potentiometers introduce excessive quantization error.
How does the I2C address selection on the MCP4532-103E/MS enable multi-device configurations on the same bus?
The MCP4532-103E/MS uses 2 hardware address pins to set one of 4 unique I2C device addresses, allowing up to 4 devices to share a single 2-wire I2C bus. Combining MCP4532 variants with different address configurations extends this to 8 devices on one bus, supporting multichannel gain or attenuation control in audio mixers and sensor arrays with only 2 signal wires and no SPI chip-select lines.
For an industrial sensor calibration board, what advantages does the MCP4532-103E/MS non-volatile memory provide compared to a volatile digital potentiometer?
The non-volatile wiper memory retains the last programmed position across power cycles without a backup battery or external EEPROM. In a factory calibration workflow, the trimming value is written once at end-of-line test and stored permanently, so the sensor node boots with the correct 10 kΩ wiper setting on each power-up. Volatile alternatives require MCU firmware to reload calibration from external storage on every power cycle, adding firmware complexity and potential failure modes.
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