TPL0501-100

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256-tap single-channel digital potentiometer (digipot) with SPI

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Product details

Parameters

Number of steps 256 Number of channels (#) 1 Resistance taper Linear Interface type SPI Memory Volatile Bandwidth (MHz) 0.25 Temp coeff (typ) (ppm/°C) 35 Operating temperature range (C) -40 to 125 open-in-new Find other Digital potentiometers (digipots)

Package | Pins | Size

SOT-23 (DCN) 8 8 mm² 2.9 x 2.8 UQFN (RSE) 8 2 mm² 2 x 1.5 open-in-new Find other Digital potentiometers (digipots)

Features

  • Single-channel, 256-position resolution
  • 100-kΩ end-to-end resistance options
  • Low temperature coefficient: 35 ppm/°C
  • SPI-compatible serial interface
  • 2.7-V to 5.5-V single-supply operation
  • ±20% resistance tolerance
  • Operating temperature: –40°C to +125°C
  • ESD performance tested per JESD 22
    • 2000-V human-body model (A114-B, Class II)

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Description

The TPL0501 device is a single-channel, linear-taper, digital potentiometer with 256 wiper positions. This device can be used as a three-terminal potentiometer or as a two-terminal rheostat. The TPL0501 is currently offered with end-to-end resistance of 100 kΩ. The internal registers of the TPL0501 can be accessed using a SPI-compatible interface. The TPL0501 has a nominal temperature coefficient of 35 ppm/°C.

The TPL0501 is available in 8-pin SOT-23 and
8-pin UQFN packages, with a specified temperature range of –40°C to +125°C.

 

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Technical documentation

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Type Title Date
* Datasheet TPL0501 256-Taps, Single-Channel, Digital Potentiometer With SPI Interface datasheet (Rev. C) Sep. 13, 2019
Application note Replacing Digital Potentiometers with Precision DACs Jul. 03, 2019
Technical articles Doing the math: The inside story of the Analog Engineer’s Pocket Reference Mar. 02, 2015
Technical articles SAR ADC response times: Interface topology makes a difference (Part 3) Feb. 17, 2015
Technical articles SAR ADC response times: Interface topology makes a difference (Part 2) Feb. 13, 2015
Technical articles SAR ADC response times: Interface topology makes a difference (Part 1) Jan. 16, 2015
User guide TPL0501EVM User's Guide Sep. 09, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
20
Description

The TPL0501 is a single channel, linear-taper digital potentiometer with 256 wiper positions. This device can be used as a three-terminal potentiometer or as a two-terminal rheostat. The TPL0501 has an end–to-end resistance of 100kΩ. The internal registers of the TPL0501 can be accessed using a (...)

Features
  • Works with low cost MSP430 based LaunchPad platform
  • Simple GUI to control EVM
  • EVM can be operated in two different modes
    • Adjustable Voltage reference mode
    • Variable gain mode
  • Board is entirely powered by USB

    Software development

    SUPPORT SOFTWARE Download
    SLIC017.ZIP (439 KB)

    Design tools & simulation

    SIMULATION MODEL Download
    SLIM302.ZIP (5 KB) - IBIS Model
    SIMULATION TOOL Download
    PSpice® for TI design and simulation tool
    PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
    Features
    • Leverages Cadence PSpice Technology
    • Preinstalled library with a suite of digital models to enable worst-case timing analysis
    • Dynamic updates ensure you have access to most current device models
    • Optimized for simulation speed without loss of accuracy
    • Supports simultaneous analysis of multiple products
    • (...)
    SIMULATION TOOL Download
    SPICE-based analog simulation program
    TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)

    CAD/CAE symbols

    Package Pins Download
    SOT-23 (DCN) 8 View options
    UQFN (RSE) 8 View options

    Ordering & quality

    Information included:
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    • Lead finish/Ball material
    • MSL rating/Peak reflow
    • MTBF/FIT estimates
    • Material content
    • Qualification summary
    • Ongoing reliability monitoring

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