MSP430F4250IDL datasheet(30/63 Pages) TI

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MSP430F42x0

MIXED SIGNAL MICROCONTROLLER

SLAS455D − MARCH 2005 − REVISED APRIL 2007

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature (unless otherwise

noted) (continued)

SD16_A, temperature sensor

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

TCSensor

Sensor temperature

coefficient

1.18

1.32

1.46

mV/K

VOffset,sensor

Sensor offset voltage

−100

100

Temperature sensor voltage at TA = 85°C

3 V

435

475

515

VSensor

Sensor output voltage

(see Note 2)

Temperature sensor voltage at TA = 25°C

3 V

355

395

435

VSensor

(see Note 2)

Temperature sensor voltage at TA = 0°C

3 V

320

360

400

NOTES:

1. The following formula can be used to calculate the temperature sensor output voltage:

VSensor,typ = TCSensor ( 273 + T [°C] ) + VOffset,sensor [mV]

2. Results based on characterization and/or production test, not TCSensor or VOffset,sensor.

SD16_A, built-in voltage reference

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

VREF

Internal reference

voltage

SD16REFON = 1, SD16VMIDON = 0

3 V

1.14

1.20

1.26

IREF

Reference supply

current

SD16REFON = 1, SD16VMIDON = 0

3 V

175

260

μA

Temperature coefficient

SD16REFON = 1, SD16VMIDON = 0

3 V

ppm/K

CREF

VREF load capacitance

SD16REFON = 1, SD16VMIDON = 0 (see Note 1)

100

ILOAD

VREF(I) maximum load

current

SD16REFON = 1, SD16VMIDON = 0

3 V

±200

tON

Turn on time

SD16REFON = 0−>1, SD16VMIDON = 0,

CREF = 100nF

3 V

DC PSR

DC power supply

rejection,

ΔVREF/ΔVCC

SD16REFON = 1, SD16VMIDON = 0, VCC = 2.5 V to 3.6 V

100

uV/V

NOTES:

1. There is no capacitance required on VREF. However, a capacitance of at least 100nF is recommended to reduce any reference

voltage noise.

SD16_A, reference output buffer

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

VREF,BUF

Reference buffer output

voltage

SD16REFON = 1, SD16VMIDON = 1

3 V

1.2

IREF,BUF

Reference Supply +

Reference output buffer

quiescent current

SD16REFON = 1, SD16VMIDON = 1

3 V

385

600

μA

CREF(O)

Required load

capacitance on VREF

SD16REFON = 1, SD16VMIDON = 1

470

ILOAD,Max

Maximum load current

on VREF

SD16REFON = 1, SD16VMIDON = 1

3 V

±1

Maximum voltage varia-

tion vs. load current

|ILOAD| = 0 to 1mA

3 V

−15

+15

tON

Turn on time

SD16REFON = 0−>1; SD16VMIDON = 1;

CREF = 470nF

3 V

100

μs

MSP430F4250IDL Datasheet(PDF) 30 Page - Texas Instruments

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