P912XDP512F0MPVR datasheet(125/1348 Pages) FREESCALE

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MC9S12XDP512 Data Sheet, Rev. 2.21

Freescale Semiconductor

125

Chapter 4

Analog-to-Digital Converter (ATD10B16CV4)

Block Description

4.1

Introduction

The ATD10B16C is a 16-channel, 10-bit, multiplexed input successive approximation analog-to-digital

converter. Refer to the Electrical Speciﬁcations chapter for ATD accuracy.

4.1.1

Features

•

8-/10-bit resolution

•7

µs, 10-bit single conversion time

•

Sample buffer ampliﬁer

•

Programmable sample time

•

Left/right justiﬁed, signed/unsigned result data

•

External trigger control

•

Conversion completion interrupt generation

•

Analog input multiplexer for 16 analog input channels

•

Analog/digital input pin multiplexing

•

1 to 16 conversion sequence lengths

•

Continuous conversion mode

•

Multiple channel scans

•

Conﬁgurable external trigger functionality on any AD channel or any of four additional trigger

inputs. The four additional trigger inputs can be chip external or internal. Refer to device

speciﬁcation for availability and connectivity

•

Conﬁgurable location for channel wrap around (when converting multiple channels in a sequence)

4.1.2

Modes of Operation

There is software programmable selection between performing single or continuous conversion on a

single channel or multiple channels.

4.1.3

Block Diagram

Refer to Figure 4-1 for a block diagram of the ATD0B16C block.

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