Digi-Key Daily
Short Video
This issue of Digi-Key Daily recommends two products:
3M Water Contact Indicator Tape and ADI LTC2688 digital-to-analog converter.
Product 1: 3M Water Contact Indicator Tape
In electronic product design and application, it's sometimes necessary to clearly demonstrate water contact without
misidentifying it due to high humidity. This is where water contact indicator tape comes in handy.
3M
's
Water Contact Indicator Tape
is a tape that changes color from white to red upon contact with water. It withstands heat and humidity aging without giving a water contact indicator, while the highly absorbent paper backing is water-permeable to display the water contact indicator. Its film top layer is printable via heat transfer, flexographic, and screen printing, and offers improved ink absorption. The acrylic adhesive also provides very high bond strength to most surfaces.
Available in a variety of thicknesses, these water contact indicator tapes are rotary die-cut and meet UL-969 standards, making them suitable for use in a wide range of electronic products such as mobile phones, two-way radios, cameras, laptops, batteries/chargers, and appliance box enclosures.
To learn
more about
3M Water Contact Indicator Tape
, watch the video below:
Product 2
:
ADI LTC2688 Digital-to-Analog Converter
High-precision digital-to-analog converters (DACs) are commonly used in communications, instrumentation and measurement, industrial automation, and other general-purpose products. As product designs continue to miniaturize, DACs are also required to be more compact.
ADI
's
LTC2688
is a 16-channel, 16-bit ±15V DAC with an integrated high-precision reference that meets these design requirements.
This device features guaranteed monotonicity and a rail-to-rail output buffer capable of sourcing or sinking up to 20mA. This SoftSpan
™
DAC features five output ranges up to ±15V, with each channel's output independently programmable. An internal reference sets the output voltage accuracy. Three toggle pins support switching or sinusoidal dithering of Input Registers A and B at multiple frequencies. An analog multiplexer simplifies measuring pin voltages, load currents, and junction temperatures. The Serial Peripheral Interface (SPI) and MICROWIRE
™
-compatible 3-wire serial interface operates at logic levels as low as 1.71V and clock rates up to 50MHz.
Housed in a small LFCSP package, the LTC2688 can be used in a variety of voltage mode biasing applications such as optical modulators, automatic test equipment and data acquisition systems.
To learn
more about
ADI
's LTC2688
digital-to-analog converter
, watch the following video:
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