MSP430F2012IPW datasheet(46/80 Pages) TI

46 / 80 page

MSP430x20x1, MSP430x20x2, MSP430x20x3

MIXED SIGNAL MICROCONTROLLER

SLAS491A − AUGUST 2005 − REVISED OCTOBER 2005

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

MSP430x20x3 electrical characteristics over recommended ranges of supply voltage and

operating free-air temperature (unless otherwise noted) (continued)

SD16_A, temperature sensor (MSP430x20x3 only)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

TCSensor

Sensor temperature coefficient

See Note 1

1.18

1.32

1.46

mV/K

VOffset,Sensor Sensor offset voltage

See Note 1

−100

100

Temperature sensor voltage

at TA = 85°C

3 V

435

475

515

VSensor

Sensor output voltage

(see Note 3)

Temperature sensor voltage

at TA = 25°C

3 V

355

395

435

(see Note 3)

Temperature sensor voltage

at TA = 0°C (see Note 1)

3 V

320

360

400

NOTES:

1. Not production tested, limits characterized.

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

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

VSensor,typ = TCSensor T [°C] + VSensor(TA = 0°C) [mV]

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

SD16_A, built-in voltage reference (MSP430x20x3 only)

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

190

280

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

PSRR

Line regulation

SD16REFON = 1; SD16VMIDON = 0

3 V

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 (MSP430x20x3 only)

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 variation 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

SD16_A, external reference input (MSP430x20x3 only)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

VREF(I)

Input voltage range

SD16REFON = 0

3 V

1.0

1.25

1.5

IREF(I)

Input current

SD16REFON = 0

3 V

MSP430F2012IPW Datasheet(PDF) 46 Page - Texas Instruments

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