MCP4651-503E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4651-503E/ST is a Microchip 256-step digital potentiometer with 50 kΩ end-to-end resistance, 2-wire I2C control interface, and 2 kHz bandwidth in a 14-pin TSSOP surface-mount package. Available in stock with competitive pricing and worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4651-503E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8800(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
- 256-step resolution with 50 kΩ resistance providing fine-grained analog control via a 2-wire I2C serial interface without mechanical adjustment
- 2 kHz bandwidth supporting audio and low-frequency signal path attenuation, bias adjustment, and gain control in compact analog designs
- 14-pin TSSOP (JESD-30 R-PDSO-G14) RoHS-compliant package with resistor array options of 5 kΩ, 10 kΩ, or 50 kΩ for versatile voltage division and feedback network adjustment
Applications
MCP4651-503E/ST is ideal for software-controlled analog adjustments in audio amplifiers, sensor calibration circuits, and programmable power supply feedback networks. With 256 resistance steps across 50 kΩ, it provides precise gain and offset trimming over an I2C interface, enabling closed-loop calibration without manual potentiometer adjustment in production. Its 2 kHz bandwidth and low-profile TSSOP package make it a practical building block in compact mixed-signal boards for industrial and consumer electronics.
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 |
| ## MCP4651-503E/ST Alternates Showing results | Image |
| 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 | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP4651-503E/ST:
Frequently Asked Questions
How many resistance steps does MCP4651-503E/ST provide and what is the step resolution across 50 kΩ?
MCP4651-503E/ST provides 256 steps across a 50 kΩ end-to-end resistance, yielding a step resolution of approximately 196 Ω per step (50000 Ω / 256). This fine resolution enables precise analog voltage division and gain trimming in audio, sensor, and power supply circuits controlled via the 2-wire I2C serial interface.
What bandwidth does MCP4651-503E/ST support and for which signal-path applications is it appropriate?
MCP4651-503E/ST has a nominal bandwidth of 2 kHz, making it suitable for audio frequency attenuation, low-frequency bias voltage adjustment, and DC offset trimming in sensor amplifiers. For signal paths above 2 kHz, its -3 dB frequency limit would attenuate the signal, so it is best used in quasi-static or slow-varying control loop applications rather than high-frequency AC signal paths.
How does MCP4651-503E/ST reduce calibration cost in production sensor modules compared to mechanical trimmers?
MCP4651-503E/ST allows automated factory calibration over I2C in under 100 ms per unit, compared to 2 to 5 minutes of manual mechanical trimmer adjustment per board. At a production volume of 10,000 units, replacing 3 mechanical trimmers per board with a single MCP4651 saves roughly 500 hours of assembly time and reduces the variability introduced by operator-dependent trimmer settings, improving yield at $0.50 to $1.00 per unit savings.
Which resistance value variants of MCP4651 are available and when would 5 kΩ be chosen over 50 kΩ?
The MCP4651 family includes 5 kΩ, 10 kΩ, and 50 kΩ end-to-end resistance variants. A 5 kΩ variant is chosen when driving low-impedance loads or setting the feedback resistor in a switching regulator with a reference voltage below 1.25 V, where the 50 kΩ variant would produce too small an output current for stable regulation. The 50 kΩ version minimizes current draw in high-impedance op-amp feedback networks where leakage current matters more than drive capability.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1263 | $1.13 |
| 25+ | $1.0320 | $25.80 |
| 84+ | $0.9930 | $83.41 |
| 100+ | $0.9500 | $95.00 |
| 1000+ | $0.8900 | $890.00 |
| 5000+ | $0.8800 | $4400.00 |
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