IMX7ULPIECB2 datasheet(89/112 Pages) NXP

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9.2.2.1.1 12-bit ADC operating conditions

RAS

VAS

CAS

ZAS

VADIN

ZADIN

RADIN

CADIN

Pad

leakage

INPUT PIN

SIMPLIFIED

INPUT PIN EQUIVALENT

CIRCUIT

SIMPLIFIED

CHANNEL SELECT

CIRCUIT

ADC SAR

ENGINE

Figure 34. ADC input impedance equivalency diagram

9.2.2.2 12-bit DAC electrical characteristics

9.2.2.2.1 12-bit DAC operating requirements

Table 54. 12-bit DAC operating conditions

Symbol

Description

Min

Typ

Max

Unit

Notes

Output load capacitance

—

100

Output load current

—

1. The DAC output can drive R and C loading. The user should consider both DC and dynamic application requirements.

50pF CL provides the best dynamic performance, while 100pF provides the best DC performance.

2. Sink or source current ability.

Table 55. DAC characteristics

Symbol

Description

Test Conditions

Min

Typ

Max

Units

Notes

VDACOUTL DAC low level output

voltage

VREFH_ANA18 selected,

Rload=18k, Cload=50pF

VSS

—

0.15

VDACOUTH DAC high level output

voltage

VDD_ANA18

-0.15

—

VDD_

ANA18

Table continues on the next page...

Specifications—real-time domain

i.MX 7ULP Applications Processor—Industrial, Rev. 1, 07/2021

NXP Semiconductors

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