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HomeProductsIntegrated Circuits (ICs)Data Acquisition - Digital PotentiometersMCP4352T-503E/ST
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MCP4352T-503E/ST - Microchip Technology

Manufacturer Part Number
MCP4352T-503E/ST
Manufacturer
Microchip Technology
Allelco Part Number
98D-MCP4352T-503E/ST
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
30,655 pcs available, New & Original
Parts Description
IC DGT POT 50KOHM 257TAP 14TSSOP
Package
14-TSSOP
Data sheet
MCP4352T-503E/S.pdf

Datasheets

MCP433x,435x.pdf
RoHs Status
ROHS3 Compliant
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In stock: 30655
  • Unit Price: $1.485
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1.485 $1.49
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

MCP4352T-503E/ST Tech Specifications
Microchip Technology - MCP4352T-503E/ST technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - MCP4352T-503E/ST

Product Attribute Attribute Value
Manufacturer Microchip Technology
Voltage - Supply 1.8V ~ 5.5V
Tolerance ±20%
Temperature Coefficient (Typ) 150ppm/°C
Taper Linear
Supplier Device Package 14-TSSOP
Series -
Resistance - Wiper (Ohms) (Typ) 75
Resistance (Ohms) 50k
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Product Attribute Attribute Value
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 125°C
Number of Taps 257
Number of Circuits 4
Mounting Type Surface Mount
Memory Type Volatile
Interface SPI
Features -
Configuration Rheostat
Base Product Number MCP4352

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the MCP4352T-503E/ST compare to other digital potentiometers in terms of resolution and interface options for precision analog signal conditioning?
The MCP4352T-503E/ST offers 257 taps per channel, providing a step resolution of approximately 194 ohms per tap at its nominal 50 kΩ resistance. This level of granularity is suitable for applications requiring moderate adjustment precision without the cost overhead of higher-tap-count devices. Its SPI interface enables direct microcontroller integration, avoiding the need for external shift registers or dedicated control lines, which simplifies PCB layout and reduces component count compared to I²C-based alternatives with similar tap counts.
What are the key limitations of using the MCP4352T-503E/ST in high-temperature industrial environments, and how do its thermal characteristics affect long-term stability?
With an operating temperature range spanning -40°C to +125°C, the MCP4352T-503E/ST meets most industrial requirements, but its temperature coefficient of 150 ppm/°C introduces measurable drift over extreme temperature swings. For instance, a 85°C variation could result in up to 6.4 Ω of resistance change across the wiper terminal, potentially impacting gain accuracy in precision amplifier stages. Engineers should consider this when designing closed-loop systems where absolute wiper resistance matters more than relative tuning.
Can the MCP4352T-503E/ST be used in battery-powered applications, and what impact does its supply voltage range have on system-level power management?
Yes, the MCP4352T-503E/ST supports a wide supply range from 1.8 V to 5.5 V, making it compatible with both low-voltage microcontrollers and standard 3.3 V or 5 V logic rails commonly found in portable devices. This flexibility allows designers to avoid additional level-shifting circuitry when interfacing with sensors or ADCs that operate at lower voltages, thereby reducing overall system complexity and leakage current in sleep modes.
Why might someone choose the rheostat configuration over the potentiometer mode when implementing volume control with the MCP4352T-503E/ST?
The MCP4352T-503E/ST is configured as a rheostat—a variable resistor—rather than a three-terminal potentiometer. This means only two terminals (end-to-end resistance plus wiper) are used, effectively creating a digitally adjustable resistor. This approach eliminates the third fixed terminal, saving one pin on the IC and simplifying connections in space-constrained designs where discrete resistors are already present on the board.
How does the ±20% tolerance of the MCP4352T-503E/ST influence calibration procedures in mass-produced consumer electronics?
The ±20% tolerance indicates manufacturing variability in the absolute end-to-end resistance value across different production lots. While not suitable for initial gain-setting without post-production trimming, this tolerance is generally acceptable for final user-adjustable features like volume or brightness, provided that factory calibration routines apply corrective offsets via software during boot-up using reference measurements taken before shipping.
What design considerations arise when cascading multiple MCP4352T-503E/ST devices on a single SPI bus?
Since the MCP4352T-503E/ST uses a standard SPI interface, multiple units can share the SCK and MOSI lines, with each connected to a unique chip-select (CS) line. Care must be taken to ensure CS signals remain mutually exclusive; otherwise, conflicting data transmissions may occur. Additionally, propagation delays through daisy-chained configurations could limit maximum clock speed if all chips are connected serially, though parallel addressing avoids this issue entirely.
Is it possible to store non-volatile settings with the MCP4352T-503E/ST, and how does its volatile memory type affect power-up behavior?
No, the MCP4352T-503E/ST has volatile memory, meaning all wiper positions reset to their default values upon power loss. This requires the host system to reload desired settings after each startup unless external EEPROMs or firmware caching mechanisms are implemented. In contrast, non-volatile variants would retain last-known state, which may be preferable in battery-backed metering or audio applications where user preferences persist across reboots.
How does the moisture sensitivity level (MSL 1) classification benefit assembly processes involving the MCP4352T-503E/ST?
MSL 1 indicates that the MCP4352T-503E/ST is not sensitive to moisture absorption under normal storage conditions and can be exposed to ambient air indefinitely before soldering. This simplifies handling logistics in high-volume manufacturing, as no special dry packaging or bake cycles are required prior to reflow soldering, reducing floor space needs and accelerating throughput in automated SMT lines.
What trade-offs exist between using the MCP4352T-503E/ST versus discrete resistor networks with integrated switches for digital attenuation?
While discrete solutions offer greater flexibility in resistance values and power ratings, integrating four channels of the MCP4352T-503E/ST saves board area, reduces BOM count, and eliminates contact resistance variability associated with mechanical or analog switches. However, the MCP4352’s internal parasitic capacitance and limited bandwidth (~1 MHz) may degrade performance in high-speed signal paths, whereas discrete FET-based attenuators maintain flatter frequency response above 10 MHz.
Can the MCP4352T-503E/ST drive loads beyond simple resistive circuits, such as capacitive sensor interfaces?
The MCP4352T-503E/ST functions primarily as a programmable resistor and lacks active buffering capabilities. When driving capacitive loads directly, the output impedance—especially at higher frequencies—can cause settling errors or instability due to interaction between the wiper resistance and load capacitance. For such cases, pairing the device with an op-amp buffer or using alternative DAC-based solutions would provide better dynamic performance.
How does the linear taper characteristic of the MCP4352T-503E/ST affect logarithmic audio volume control implementation?
Linear tapers produce equal changes in resistance per tap step, leading to non-uniform perceived loudness adjustments across the full range. For audio volume control, a logarithmic taper is typically preferred because human hearing responds logarithmically to sound intensity. Implementing apparent log scaling requires firmware interpolation or lookup tables to map digital commands to appropriate tap positions, adding computational overhead but achieving audible linearity.
Are there any known reliability concerns when operating the MCP4352T-503E/ST near its maximum junction temperature?
Operating continuously at 125°C pushes the device close to its thermal limits, potentially accelerating electromigration within the thin-film resistive elements. Although Microchip specifies functional operation up to this point, long-term exposure may reduce mean time between failures in harsh environments. Derating usage below 100°C or incorporating thermal monitoring in safety-critical systems is advisable for extended deployments.
How does the base product number (MCP4352) relate to variant selection, and why might the "-503" suffix matter in system design?
The base MCP4352 family includes various models differentiated by resistance value, package type, and interface options. The "-503" suffix denotes a 50 kΩ nominal resistance, distinguishing it from other variants like "-103" (10 kΩ) or "-104" (100 kΩ). Selecting the correct variant ensures compatibility with existing analog front-ends designed around specific impedance levels, preventing unintended loading effects or signal attenuation.
What role does RoHS3 compliance play in global market access for products containing the MCP4352T-503E/ST?
RoHS3 compliance confirms adherence to updated European Union restrictions on hazardous substances, including stricter limits on phthalates in certain electronic components. Inclusion of the MCP4352T-503E/ST in certified designs facilitates entry into regulated markets without additional testing, reducing time-to-market and certification costs for medical, automotive, and consumer electronics manufacturers targeting EU jurisdictions.

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology MCP4352T-503E/ST

Product Attribute MCP4352T-502E/ST MCP4352T-103E/ST MCP4352-502E/ST MCP4352T-104E/ST
Part Number MCP4352T-502E/ST MCP4352T-103E/ST MCP4352-502E/ST MCP4352T-104E/ST
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Interface - - - -
Temperature Coefficient (Typ) - - - -
Tolerance - - - -
Taper - - - -
Resistance (Ohms) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Features - - - Simultaneous Sampling
Mounting Type - Surface Mount Through Hole Surface Mount
Configuration - - - S/H-ADC
Series - - - -
Voltage - Supply - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Number of Taps - - - -
Memory Type - - - -
Resistance - Wiper (Ohms) (Typ) - - - -
Number of Circuits - - - -

MCP4352T-503E/ST Datasheet PDF

Download MCP4352T-503E/ST pdf datasheets and Microchip Technology documentation for MCP4352T-503E/ST - Microchip Technology.

Datasheets
MCP433x,435x.pdf
PCN Packaging
Packing Changes 10/Oct/2016.pdf Label and Packing Changes 23/Sep/2015.pdf
PCN Assembly/Origin
Qualification Report Revsion 15/Oct/2014.pdf
PCN Design/Specification
Lead Frame Cancel 08/Feb/2017.pdf Lead Frame 10/Jan/2017.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Brazil 7
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Asia India 4
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DHL & FedEx Shipment Charges Reference
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0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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MCP4352T-503E/ST Image

MCP4352T-503E/ST

Microchip Technology
98D-MCP4352T-503E/ST

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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