MSP430F435IPZ datasheet(63/85 Pages) TI

63 / 85 page

MSP430x43x, MSP430x44x

MIXED SIGNAL MICROCONTROLLER

SLAS344A – JANUARY 2002 – REVISED FEBRUARY 2002

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

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

noted) (continued)

12-bit ADC, power supply and input range conditions (see Note 1)

PARAMETER

TEST CONDITIONS

MIN

NOM

MAX

UNIT

AVCC

Analog supply

voltage

AVCC and DVCC are connected together

AVSS and DVSS are connected together

V(AVSS) = V(DVSS) = 0 V

2.2

3.6

VCC( i )

0 mA

≤ I(Load) ≤ 0.5 mA

VREF+

VREF+ +

150 mV

VCC(min)

0.5 mA

≤ I(Load) ≤ 1.5 mA

VREF+

VREF+ +

350 mV

VO(REF )

Positive built-in

reference voltage

2_5 V = 1 for 2.5-V built-in

reference

2 5V=0for15 V built in

VCC = 3 V

2.4

2.5

2.6

VO(REF+)

reference voltage

output

2_5 V = 0 for 1.5-V built-in

reference

I(VREF+) ≤ I(VREF+_max)

VCC = 2.2 V/3 V

1.44

1.5

1.56

IL(VREF )

Load current out of

VCC = 2.2 V

0.01

–0.5

IL(VREF+)

Load current out of

VREF+ terminal

VCC = 3 V

–1

I(VREF+) = 500 µA ±100 µA

Analog input voltage 0 75 V;

VCC = 2.2 V

±2

LSB

†

Load-current

regulation VREF+

()

Analog input voltage ~0.75 V;

2_5 V = 0

VCC = 3 V

±2

IL(VREF+)†

regulation VREF+

terminal

I(VREF+) = 500 µA ± 100 µA

Analog input voltage ~1.25 V;

2_5 V = 1

VCC = 3 V

±2

LSB

‡

Load current

regulation VREF+

I(VREF+) =100 µA → 900 µA,

VCC = 3 V, ax ~0.5 x VREF+

C(VREF ) 5 µF

IL(VREF+)‡

regulation VREF+

terminal

VCC = 3 V, ax ~0.5 x VREF+

Error of conversion result

≤ 1 LSB

C(VREF+) = 5 µF

Vref(VREF+)

Positive external

reference voltage

input

VeREF+ > VeREF–/VeREF– (see Note 2)

1.4

V(AVCC)

Vref(VREF– /VeREF–)

Negative external

reference voltage

input

VeREF+ > VeREF–/VeREF– (see Note 3)

1.2

† Not production tested, limits characterized

‡ Not production tested, limits verified by design

NOTES:

1. The leakage current is defined in the leakage current table with P6.x/Ax parameter.

2. The accuracy limits the minimum positive external reference voltage. Lower reference voltage levels may be applied with reduced

accuracy requirements.

3. The accuracy limits the maximum negative external reference voltage. Higher reference voltage levels may be applied with reduced

accuracy requirements.

4. The accuracy limits minimum external differential reference voltage. Lower differential reference voltage levels may be applied with

reduced accuracy requirements.

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