MSP432P411VIPZ datasheet(73/212 Pages) TI1

73 / 212 page

MSP432P4111, MSP432P4011, MSP432P411Y

MSP432P401Y, MSP432P411V, MSP432P401V

www.ti.com

SLASEA0A – DECEMBER 2017 – REVISED FEBRUARY 2018

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Product Folder Links: MSP432P4111 MSP432P4011 MSP432P411Y MSP432P401Y MSP432P411V MSP432P401V

Specifications

Table 5-32 lists the characteristics of the internal reference buffers of the ADC.

(1)

The internal reference current is supplied through terminal AVCC.

Table 5-32. Precision ADC Internal Reference Buffers

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

IREF+

Operating supply current into

AVCC terminal(1)

ADC ON, REFOUT = 0, ADC14PWRMD = 0,

REFVSEL = {0, 1, 3}

3 V

600

800

µA

ADC ON, REFOUT = 0, ADC14PWRMD = 2,

REFVSEL = {0, 1, 3}

200

300

ADC ON, REFOUT = 1, ADC14PWRMD = 2,

REFVSEL = {0, 1, 3}

650

850

ton

Turnon time

3 V

µs

Table 5-33 lists the characteristics of the ADC external reference.

(1)

Lower reference voltage down to 1.2 V can be applied for 1-Msps sampling rate with reduced accuracy requirements of linearity

parameters.

(2)

Connect two decoupling capacitors, 5 µF and 50 nF, to the VeREF+ terminal to decouple the dynamic current required for an external

reference source if it is used for the Precision ADC.

Table 5-33. Precision ADC External Reference

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VeREF+

Positive external reference voltage

input(1)

1.45

AVCC

VeREF–

Negative external reference voltage

input

(VeREF+ -

VeREF–)

Differential external reference voltage

input(1)

1.45

AVCC

IVeREF+

IVeREF–

Static input current in single ended

input mode

1.45 V

≤ VeREF+≤ VAVCC, VeREF– = 0 V,

fADC14CLK = 25 MHz, ADC14SHT0x = 0x1,

ADC14SHT1x = 0x1, ADC14DIF = 0

±75

µA

1.45 V

≤ VeREF+≤ VAVCC, VeREF– = 0 V,

fADC14CLK = 5 MHz, ADC14SHT0x = 0x1,

ADC14SHT1x = 0x1, ADC14DIF = 0

±15

IVeREF+

IVeREF–

Static input current in differential input

mode

1.45 V

≤ VeREF+≤ VAVCC, VeREF– = 0 V,

fADC14CLK = 25 MHz, ADC14SHT0x = 0x1,

ADC14SHT1x = 0x1, ADC14DIF = 1

±150

µA

1.45 V

≤ VeREF+≤ VAVCC, VeREF– = 0 V

fADC14CLK = 5 MHz, ADC14SHT0x = 0x1,

ADC14SHT1x = 0x1, ADC14DIF = 1

±30

CVeREF+

Capacitance at VeREF+ terminal

See (2)

µF

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