MCP4161-103E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4161 is a single-channel 7-bit non-volatile digital potentiometer with 10 kOhm resistance and increment/decrement interface in an 8-pin SOIC package. It provides 128-step wiper control with EEPROM position retention. Available in stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4161-103E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9388(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 MCP4161-103E/SN?
- Non-volatile EEPROM wiper memory stores resistance position across power cycles, enabling factory-calibrated designs
- 10 kOhm total resistance with 128 steps provides 78-ohm step resolution for fine gain and bias adjustments
- Increment/decrement UP/DOWN interface allows control with just 3 GPIO lines, compatible with any microcontroller
What is MCP4161-103E/SN used for?
The MCP4161-103E/SN is used in programmable gain amplifiers, offset calibration circuits, and audio volume controls where a 10 kOhm adjustable resistance with non-volatile memory replaces mechanical trim potentiometers. Surface-mount SOIC-8 assembly suits production boards in industrial instrumentation and consumer electronics. The low 1 kHz bandwidth makes it appropriate for DC and audio-frequency applications rather than RF signal paths.
What are the specifications of MCP4161-103E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 1kHz |
| 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 | 10000Ω |
| 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 MCP4161-103E/SN datasheet?
MCP4161-103E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4161-103E/SN?
Compatible alternatives and drop-in replacements for MCP4161-103E/SN:
Microchip Technology Inc SINGLE 8-BIT, NON-VOLATILE LINEAR POT W/SPI
Frequently Asked Questions
How does the 10 kOhm resistance of the MCP4161-103E/SN compare to the 50 kOhm MCP4141 variant for op-amp gain setting?
The 10 kOhm MCP4161-103E/SN gives a 78-ohm step size across 128 steps, while the 50 kOhm MCP4141 yields 391 ohms per step. For op-amp gain-setting feedback resistors, the 10 kOhm range allows finer gain increments at lower impedance, reducing input-bias current effects in precision instrumentation amplifier designs.
What wiper resistance does the MCP4161-103E/SN contribute to a circuit, and does it affect accuracy?
The MCP4161-103E/SN has a wiper contact resistance of approximately 75 ohms at 5 V supply, which adds a fixed offset to the programmed step value. For a 10 kOhm design, 75 ohms represents 0.75% error; most gain-calibration applications absorb this in system-level calibration stored in the host MCU, and the non-volatile wiper memory preserves the corrected value.
In a PCB layout replacing a manual trim-pot with the MCP4161-103E/SN, what supply voltage range is supported?
The device operates from 1.8 V to 5.5 V, covering 3.3 V and 5 V analog supply rails. Over the full -40°C to +85°C industrial temperature range, the 10 kOhm end-to-end resistance stays within ±20% tolerance, providing a reliable drop-in trim-pot replacement without supply voltage regulators if the system already provides a 1.8 V to 5.5 V rail.
How many EEPROM write cycles does the MCP4161-103E/SN support, and what data retention period is specified?
The on-chip EEPROM supports more than 1 million write cycles per bit cell, suitable for frequent run-time calibration updates. Data retention is rated at over 200 years at 25°C with no power applied, ensuring that factory-programmed wiper positions or field-calibrated settings remain valid throughout the product lifecycle.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2700 | $1.27 |
| 2+ | $0.9415 | $1.88 |
| 500+ | $0.9388 | $469.40 |
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