MCP4651-502E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4651-502E/ST is a dual-channel digital potentiometer from Microchip with 256 steps and a 5 kΩ end-to-end resistance, controlled via a 2-wire I2C interface. It comes in a 14-pin TSSOP package and is suitable for gain control, offset adjustment, and calibration in analog signal chains.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4651-502E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7400(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
- Dual-channel digital potentiometer with 256 wiper positions per channel
- 5 kΩ end-to-end resistance (also available in 10 kΩ and 50 kΩ variants)
- 2-wire I2C serial interface for easy microcontroller integration
- 2 kHz nominal bandwidth for audio and low-frequency analog control
- 14-pin TSSOP package for compact surface-mount PCB designs
- Non-volatile wiper position storage in select variants
Applications
The MCP4651-502E/ST is used for programmable gain and offset adjustment in analog front-end circuits such as audio amplifiers, sensor signal conditioners, and calibration reference trimmers. Its I2C interface allows microcontrollers to tune resistance values across 256 steps without manual trimming, reducing production calibration time. Industrial process controllers, LCD brightness controls, and medical instrumentation amplifiers benefit from its dual-channel 5 kΩ potentiometer design.
Specifications
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| 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 | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| 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 | 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 |
| ## MCP4651-502E/ST Alternates Showing results | Image |
| 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 | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP4651-502E/ST:
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Frequently Asked Questions
How many resistance steps does the MCP4651-502E/ST provide, and what is its end-to-end resistance?
The MCP4651-502E/ST provides 256 discrete wiper positions with a 5 kΩ end-to-end resistance, giving approximately 19.5 Ω per step. This resolution is sufficient for precise gain and offset trimming in analog circuits without mechanical potentiometers.
What serial interface does the MCP4651-502E/ST use, and how does that simplify PCB design?
The MCP4651-502E/ST uses a 2-wire I2C interface, requiring only SDA and SCL lines to control both channels. This reduces wiring complexity compared to SPI alternatives and allows multiple digital potentiometers to share the same bus with unique addresses.
In which analog signal-conditioning applications is the MCP4651-502E/ST most commonly used?
Common applications include programmable gain amplifiers in sensor conditioning circuits, audio volume and tone controls, and factory calibration of 5 kΩ offset trimmers in medical instrumentation. Its 256-step resolution at 2 kHz bandwidth suits low-frequency analog tuning tasks in industrial and consumer designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2400 | $1.24 |
| 2+ | $0.9186 | $1.84 |
| 1000+ | $0.8900 | $890.00 |
| 5000+ | $0.8800 | $4400.00 |
| 5088+ | $0.7420 | $3775.30 |
| 7584+ | $0.7400 | $5612.16 |
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