MSP430F2012IN datasheet(39/91 Pages) TI

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MSP430F20x3

MSP430F20x2

MSP430F20x1

www.ti.com

SLAS491G

– AUGUST 2005 – REVISED APRIL 2011

10-Bit ADC, Power Supply and Input Range Conditions (MSP430F20x2)

(1)

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

(1)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

Analog supply voltage

VCC

VSS = 0 V

2.2

3.6

range

All Ax terminals,

Analog input voltage

VAx

Analog inputs selected in

VCC

range(2)

ADC10AE register

fADC10CLK = 5 MHz,

2.2 V

0.52

1.05

ADC10ON = 1, REFON = 0,

I: -40

°C to 85°C

IADC10

ADC10 supply current(3)

ADC10SHT0 = 1,

T: -40

°C to 105°C

3 V

0.6

1.2

ADC10SHT1 = 0, ADC10DIV = 0

fADC10CLK = 5 MHz,

ADC10ON = 0, REF2_5V = 0,

2.2 V/3 V

0.25

0.4

Reference supply

REFON = 1, REFOUT = 0

I: -40

°C to 85°C

IREF+

current, reference buffer

T: -40

°C to 105°C

fADC10CLK = 5 MHz,

disabled(4)

ADC10ON = 0, REF2_5V = 1,

3 V

0.25

0.4

REFON = 1, REFOUT = 0

fADC10CLK = 5 MHz

-40

°C to 85°C

2.2 V/3 V

1.1

1.4

Reference buffer supply

ADC10ON = 0, REFON = 1,

IREFB,0 current with

REF2_5V = 0, REFOUT = 1,

105

°C

2.2 V/3 V

1.8

ADC10SR = 0(4)

ADC10SR = 0

fADC10CLK = 5 MHz,

-40

°C to 85°C

2.2 V/3 V

0.5

0.7

Reference buffer supply

ADC10ON = 0, REFON = 1,

IREFB,1 current with

REF2_5V = 0, REFOUT = 1,

105

°C

2.2 V/3 V

0.8

ADC10SR = 1(4)

ADC10SR = 1

Only one terminal Ax selected at

I: -40

°C to 85°C

Input capacitance

a time

T: -40

°C to 105°C

Input MUX ON

I: -40

°C to 85°C

0 V

≤ VAx ≤ VCC

2.2 V/3 V

2000

resistance

T: -40

°C to 105°C

(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.

MSP430F2012IN 数据表(PDF) 39 Page - Texas Instruments

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