MSP430F2002IPW datasheet(39/88 Pages) TI

39 / 88 page

MSP430x20x1, MSP430x20x2, MSP430x20x3

MIXED SIGNAL MICROCONTROLLER

SLAS491D -- AUGUST 2005 -- REVISED SEPTEMBER 2007

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

MSP430x20x2 electrical characteristics over recommended ranges of supply voltage and

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

10-bit ADC, power supply and input range conditions (see Note 1, MSP430x20x2 only)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

VCC

Analog supply voltage

range

VSS =0 V

2.2

3.6

VAx

Analog input voltage range

(see Note 2)

All Ax terminals.

Analog inputs selected in

ADC10AE register.

VCC

ADC10 supply current

fADC10CLK =5.0 MHz

ADC10ON = 1, REFON = 0

ADC10SHT0 1

I: -40--85°C

2.2 V

0.52

1.05

IADC10

ADC10 supply current

(see Note 3)

ADC10SHT0 = 1,

ADC10SHT1 = 0, ADC10DIV

I: 40 85 C

T: -40--105°C

0.6

1.2

Reference supply current,

reference buffer disabled

fADC10CLK =5.0 MHz

ADC10ON = 0, REF2_5V = 0,

REFON = 1, REFOUT = 0

I: -40--85°C

T: -40--105°C

2.2 V/3 V

0 25

0 4

IREF+

reference buffer disabled

(see Note 4)

fADC10CLK =5.0 MHz

ADC10ON = 0, REF2_5V = 1,

REFON = 1, REFOUT = 0

I: -40--85°C

T: -40--105°C

0.25

0.4

Reference buffer supply

current with ADC10SR 0

fADC10CLK =5.0 MHz

ADC10ON = 0,

REFON 1 REF2 5V 0

-40--85°C

2.2 V/3 V

1.1

1.4

IREFB,0

current with ADC10SR=0

(see Note 4)

REFON = 1, REF2_5V =0,

REFOUT = 1,

ADC10SR=0

105°C

2.2 V/3 V

1.8

Reference buffer supply

current with ADC10SR 1

fADC10CLK =5.0 MHz

ADC10ON = 0,

REFON = 1,

-40--85°C

2.2 V/3 V

0.5

0.7

IREFB,1

current with ADC10SR=1

(see Note 4)

REFON = 1,

REF2_5V = 0,

REFOUT = 1,

ADC10SR=1

105°C

2.2 V/3 V

0.8

Input capacitance

Only one terminal Ax selected

at a time

I: -40--85°C

T: -40--105°C

Input MUX ON resistance

0V ≤ VAx ≤ VCC

I: -40--85°C

T: -40--105°C

2.2 V/3 V

2000

Ω

NOTES: 1. The leakage current is defined in the leakage current table with Px.x/Ax parameter.

2. The analog input voltage range must be within the selected reference voltage range VR+ to VR-- for valid conversion results.

3. The internal reference supply current is not included in current consumption parameter IADC10.

4. The internal reference current is supplied via terminal VCC. Consumption is independent of the ADC10ON control bit, unless a

conversion is active. The REFON bit enables the built-in reference to settle before starting an A/D conversion.

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