MCP4342-104E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4342 is a quad-channel 7-bit digital potentiometer with 128 steps and 100 kOhm resistance, controlled via 3-wire SPI in TSSOP-14 package. It enables precise electronic resistance adjustment in calibration and gain-control circuits. Available in stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4342-104E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3500(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 MCP4342-104E/ST?
- Quad independent wiper channels in a single TSSOP-14 package, saving board space in multi-channel calibration designs
- Non-volatile wiper position storage via EEPROM retains settings across power cycles without host intervention
- 100 kOhm end-to-end resistance with 128 steps delivers fine-grained 781-ohm step resolution for precision analog tuning
What is MCP4342-104E/ST used for?
The MCP4342-104E/ST is used in programmable gain amplifier circuits, automatic gain control loops, and sensor signal conditioning where software-adjustable resistance replaces manual trim pots. Its 4-channel architecture in a compact TSSOP-14 footprint allows a single device to calibrate multiple signal paths on an analog front end. Battery-powered and portable equipment benefit from its low-power SPI interface and non-volatile wiper memory.
What are the specifications of MCP4342-104E/ST?
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.1kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| Number of Positions | 129 |
| 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 | 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 | 100000Ω |
| 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 | Malaysia, Philippines, Thailand |
Where can I find the MCP4342-104E/ST datasheet?
MCP4342-104E/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4342-104E/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How fine is the resistance step size of the MCP4342-104E/ST, and how is it calculated?
With a 100 kOhm total resistance and 128 steps, each wiper step is approximately 781 ohms (100 kOhm / 128). This fine resolution allows precise gain or bias adjustment in analog signal chains, and the non-volatile EEPROM retains the last position across power cycles without software intervention.
How many independent channels does the MCP4342-104E/ST provide, and can they be controlled simultaneously via SPI?
The MCP4342-104E/ST provides 4 independent wiper channels, each with its own 7-bit register. All four channels share the same 3-wire SPI interface with commands addressed per channel, enabling sequential updates within a single SPI transaction at clock speeds up to several MHz.
In a programmable gain amplifier design, what supply voltage range supports the MCP4342-104E/ST?
The MCP4342-104E/ST operates from a 1.8 V to 5.5 V single supply, making it compatible with both 3.3 V and 5 V analog front-end designs. At 5 V supply, the wiper resistance is minimized and the full 100 kOhm range is accessible, ensuring accurate gain-setting in instrumentation amplifier circuits.
What alternative Microchip digital potentiometer offers a lower 10 kOhm resistance in the same TSSOP package?
The MCP4342-103E/ST is the pin-compatible 10 kOhm variant offering 128 steps over a 10 kOhm range, giving each step approximately 78 ohms. Designers selecting tighter resistance ranges for lower-impedance audio or filter circuits can swap from the 104E to the 103E with no PCB changes, since both share the same TSSOP-14 footprint.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8500 | $1.85 |
| 25+ | $1.8200 | $45.50 |
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