Digital potentiometers (digipots)

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Our digital potentiometers (digipots) provide high integration and enhanced control in industrial, enterprise, communication and personal electronics applications. The extensive control abilities of our digipots offer a range of variable resistances for improved precision.

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Can't find the right digipot? Explore our smart DAC solutions.

In LED applications, smart digital-to-analog converters (DACs) provide high integration and increased precision, while eliminating software design burdens.

Smart DACs enable you to:

  • Control LED drivers using their integrated pulse-width modulation capabilities.
  • Tune LEDs directly, and use the exposed feedback pin to adjust for thermal foldback and additional errors.
  • Use digital slew-rate control to enhance the user experience, with fade-in and fade-out control that's friendly to human eyes.
  • Ensure autonomy through user- and factory-programmable nonvolatile memory.
Application note
Smart DAC LED Biasing Circuit with Low-Power Sleep Mode (Rev. A)
This design uses a four-channel buffered voltage or current output low-power smart DAC such as the DAC53004 or DAC63004 (DACx3004) to bias an LED.
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Circuit design
Smart DAC circuit for appliance light fade-in fade-Out
This circuit design describes a key application of the DACx3701 – programmable LED biasing for appliance fade-in and fade-out applications.
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Featured products for smart DACs
DAC43701 ACTIVE 8-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator, comparator, GPIO
DAC43401 ACTIVE 8-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator and comparator
DAC43204 ACTIVE 8-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator

In voltage scaling and margining applications, smart digital-to-analog converters (DACs) offer high performance and smaller sizes, as well as low cost.

Here are some of the features of smart DACs:

  • High-Z output by default or upon power down, eliminating the need to perform power-cycle sequencing.
  • Glitch-free voltage scaling, with configurable digital slew-rate control.
  • Failure management, with a programmable general-purpose input to turn off the device or bring it to a safe level.
  • Integrated user- and factory-programmable nonvolatile memory, achieving autonomy and predictability from software.
Technical article
E2E - [FAQ] Where can I find more information about smart DACs?
Landing pad for content surrounding TI's smart DACs.
Circuit design
Voltage Margining and Scaling Circuit with a Voltage Output Smart DAC (Rev. A)
This circuit uses a four-channel buffered voltage output DAC to voltage margin a switch-mode power supply (SMPS). A voltage margining circuit is used to trim, scale, or test the output of a power converter.
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Featured products for smart DACs
DAC53204 ACTIVE 10-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator
DAC53701 ACTIVE 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator, comparator, GPIO
DAC53401 ACTIVE 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator and comparator

In laser diode analog power-control applications, the high levels of integration and small package sizes of smart digital-to-analog converters (DACs) minimize design costs and enable implementations without software.

A smart DAC allows designers to:

  • Increase precision by using the exposed feedback pin for closed-loop control.
  • Decrease board size and cost, with an integrated precision reference, buffer and configurable toggle general-purpose input/output.
  • Increase autonomy by using factory-programmable nonvolatile memory to store configurations and ensure predictable power up.
  • Control laser current using the buffer comparator mode configuration.
Featured products for smart DACs
DAC43701 ACTIVE 8-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator, comparator, GPIO
DAC53701 ACTIVE 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator, comparator, GPIO
DAC53202 ACTIVE 10-bit 2-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator

In programmable comparator applications, smart digital-to-analog converters (DACs) enable you to transfer the control of important safety mechanisms from software to hardware and avoid the need to comply with software regulations and recertifications.

You can also:

  • Adjust the threshold of the configurable comparator to any value within the limit range.
  • Use the exposed feedback pin for programmable hysteresis configuration.
  • Use the device as a latching comparator through the general-purpose input.
  • Store all configurations in nonvolatile memory, facilitating software independence and predictable power up.
Technical article
E2E - [FAQ] Where can I find more information about smart DACs?
Landing pad for content surrounding TI's smart DACs.
Circuit design
Programmable comparator circuit with hysteresis or latching output
This design uses a buffered voltage output DAC to create a comparator with a programmable threshold value. 
PDF | HTML
Featured products for smart DACs
DAC53401 ACTIVE 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator and comparator
DAC53701 ACTIVE 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator, comparator, GPIO
DAC53204 ACTIVE 10-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator

While digipots require software to generate pulse-width modulation (PWM), our smart digital-to-analog converter (DAC) portfolio can generate PWM and various duty cycles and frequencies without any software, or serve as a substitute for a 555 timer circuit.

Our smart DACs also have:

  • A continuous waveform generator capable of producing square, sawtooth and triangular waves with digital slew rates. You can select a specific frequency and duty cycle for PWM.
  • Adjustable voltage levels, enabling you to customize PWM to your needs.
  • Nonvolatile memory to store configurations, providing autonomy from software and ensuring predictable power up.
Resource
E2E - [FAQ] Where can I find more information about smart DACs?
Landing pad for content surrounding TI's smart DACs.
Resource
E2E - Generating pulse-width modulation signals with smart DACs
In this article, we will discuss how a smart DAC can produce pulse-width modulation (PWM) signals controlled directly from an analog signal through the feedback pin of the device.
Circuit design
Digital input to PWM output circuit using Smart DACs
This design uses a buffered voltage output smart DAC to decode two general-purpose inputs (GPIs) into a constant-frequency PWM output with four selectable duty cycle levels.
PDF | HTML
Featured products for smart DACs
DAC53401 ACTIVE 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator and comparator
DAC53701 ACTIVE 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator, comparator, GPIO
DAC53204 ACTIVE 10-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator

Smart digital-to-analog converters (DACs) are an efficient way to program and control eFuses. Their high-performance and low-noise characteristics also enhance precision.

Our smart DACs enable designers to:

  • Configure systems for troubleshooting without having to use software.
  • Ensure predictable power up and achieve independence from boot-up systems and software through nonvolatile memory.
Featured products for smart DACs
DAC43401 ACTIVE 8-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator and comparator
DAC43701 ACTIVE 8-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator, comparator, GPIO
DAC43204 ACTIVE 8-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator