MCP4341-503E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4341-503E/ST is a quad-channel, non-volatile, SPI digital potentiometer with 128 wiper positions and 50 kohm end-to-end resistance, operating from 1.8 V to 5.5 V. The TSSOP-20 package integrates 4 independent digitally controlled resistor elements in a compact footprint.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP4341-503E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2400(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
- Quad-channel non-volatile digital potentiometer with 128 wiper steps per channel, retaining position after power loss
- 50 kohm end-to-end resistance with 3-wire SPI control interface for easy microcontroller integration
- 1.8 V to 5.5 V supply range in a TSSOP-20 package integrating 4 resistor channels
Applications
The MCP4341-503E/ST is used in programmable gain amplifier stages, adjustable voltage references, and LCD bias control circuits where precise digital resistance control is required. Its non-volatile wiper memory makes it ideal for calibration and trimming applications in industrial sensors, medical instruments, and audio equipment that must retain settings across power cycles.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-20 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.2kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.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 | 2.7V |
| 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 | 50000Ω |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the non-volatile wiper memory of the MCP4341-503E/ST benefit calibration-heavy sensor designs?
The MCP4341-503E/ST stores wiper positions in non-volatile memory, so all 4 channels retain their 128-step resistance settings after power removal. In factory-calibrated sensors or precision measurement instruments this eliminates the need for a host microcontroller to re-write calibration values at every startup, reducing initialization time and simplifying firmware while maintaining accuracy across power cycles.
What resistance resolution does each MCP4341-503E/ST wiper channel provide over the 50 kohm range?
With 128 wiper positions across a 50 kohm end-to-end resistance, each step represents approximately 390 ohms of adjustment. This 7-bit resolution translates to about 0.78% full-scale per step, suitable for gain trimming, offset adjustment, and LCD contrast control in systems operating on 1.8 V to 5.5 V single-supply rails.
Can the MCP4341-503E/ST replace a mechanical multi-gang potentiometer in an audio tone-control circuit?
Yes, the MCP4341-503E/ST integrates 4 independent 50 kohm digital potentiometers in one TSSOP-20 package, covering the typical bass, treble, and balance channels needed in audio tone-control topologies. The 0.2 kHz rated bandwidth suits audio-frequency applications up to approximately 20 kHz when the wiper resistance of roughly 75 ohms is accounted for in the filter design.
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