| Linduino 1.3.0 Linear Technology Arduino-Compatible Demonstration Board

Files
LTC2642: 16-/14-/12-Bit VOUT DAC with SPI Interface
Digital-to-Analog Converters (DAC)

LTC2642: 16-/14-/12-Bit VOUT DAC with SPI Interface LTC2641: 16-/14-/12-Bit VOUT DAC with SPI Interface. More...

## Files
file | LTC2642.cpp
| Library for LTC2642 16-/14-/12-Bit VOUT DAC with SPI Interface.
file | LTC2642.h
| LTC2642: 16-/14-/12-Bit VOUT DAC with SPI Interface LTC2641: 16-/14-/12-Bit VOUT DAC with SPI Interface.
file | DC1096B.ino
| Linear Technology DC1096B Demonstration Board.

## Detailed Description

LTC2642: 16-/14-/12-Bit VOUT DAC with SPI Interface LTC2641: 16-/14-/12-Bit VOUT DAC with SPI Interface.

    The LTC2641/LTC2642 are families of 16-,14 and 12-bit unbuffered voltage output
    DACs. These DACs operate from 2.7V to 5.5V supply and are monotonic over
    temperature.

    Both the LTC2641 and LTC2642 feature a reference input range of 2V to VDD. VOUT
    swings from 0V to VREF . For bipolar operation, the LTC2642 includes matched scaling
    resistors for use with an external precision op amp (such as the LT1678), generating
    a ±VREF output swing at RFB.

    They communicate via SPI interface. 16 bits of data are loaded through DIN
    after a high-to-low transition of CS (MSB first). After 16 data bits have
    been loaded into the serial input register, a low-to-high transition on CS
    transfers the data to the 16-bit DAC latch, updating the DAC output.

    For the 14-bit DACs, (LTC2641-14/LTC2642-14), the MSB remains in the same
    (left-justified) position in the input 16-bit data word. Therefore, two
    “don’t-care” bits must be loaded after the LSB, to make up the required
    16 data bits. Similarly, for the 12-bit family members(LTC2641-12/LTC2642-12)
    four “don’t-care” bits must follow the LSB.

http://www.linear.com/product/LTC2642 http://www.linear.com/product/LTC2641

http://www.linear.com/product/LTC2642#demoboards http://www.linear.com/product/LTC2641#demoboards

Copyright 2018(c) Analog Devices, Inc.

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