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Chapter 25
12-bit Digital-to-Analog Converter (DAC)
25.1 Introduction
The 12-bit digital-to-analog converter (DAC) is a low-power, general-purpose DAC. The
output of the DAC can be placed on an external pin or set as one of the inputs to the
analog comparator, op-amps, or ADC.
25.2 Features
The features of the DAC module include:
• On-chip programmable reference generator output. The voltage output range is from
1⁄4096 V
to V
in
• V
can be selected from two reference sources
in
• Static operation in Normal Stop mode
• 2-word data buffer supported with multiple operation modes
• DMA support
25.3 Block diagram
The block diagram of the DAC module is as follows:
Freescale Semiconductor, Inc.
, and the step is 1⁄4096 V
in
KL27 Sub-Family Reference Manual , Rev. 5, 01/2016
, where V
is the input voltage.
in
in
413
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