MSP430F2012IN datasheet(45/91 Pages) TI

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OSR

55.0

60.0

65.0

70.0

75.0

80.0

85.0

90.0

10.00

100.00

1000.00

PW, or N

RSA

MSP430F20x3

MSP430F20x2

MSP430F20x1

www.ti.com

SLAS491G

– AUGUST 2005 – REVISED APRIL 2011

Typical Characteristics, SD16_A SINAD Performance Over OSR (MSP430F20x3)

SINAD PERFORMANCE

OSR

(fSD16 = 1 MHz, SD16REFON = 1,SD16GAINx = 1)

Figure 23.

SD16_A, Performance (fSD16 = 1 MHz, SD16OSRx = 256, SD16REFON = 1) (MSP430F20x3)

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

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

SD16GAINx = 1

0.97

1.00

1.02

SD16GAINx = 2

1.90

1.96

2.02

SD16GAINx = 4

3.76

3.86

3.96

Nominal gain

3 V

SD16GAINx = 8

7.36

7.62

7.84

SD16GAINx = 16

14.56

15.04

15.52

SD16GAINx = 32

27.20

28.35

29.76

ΔG/ΔT

Gain temperature drift

SD16GAINx = 1(1)

3 V

ppm/

°C

SD16GAINx = 1

±0.2

EOS

Offset error

3 V

%FSR

SD16GAINx = 32

±1.5

SD16GAINx = 1

±4

±20

Offset error temperature

ppm

ΔEOS/ΔT

3 V

coefficient

FSR/

°C

SD16GAINx = 32

±20

±100

SD16GAINx = 1,

Common-mode input signal:

>90

VID = 500 mV, fIN = 50 Hz, 100 Hz

Common-mode rejection

CMRR

3 V

ratio

SD16GAINx = 32,

Common-mode input signal:

>75

VID = 16 mV, fIN = 50 Hz, 100 Hz

SD16GAINx = 1, VIN = 500 mV,

DC PSR

DC power supply rejection

2.5 V to 3.6 V

0.35

%/V

VCC = 2.5 V to 3.6 V

(2)

AC power supply rejection

SD16GAINx = 1,

AC PSRR

3 V

>80

ratio

VCC = 3 V ± 100 mV, fIN = 50 Hz

(1)

Calculated using the box method: (MAX(-40

°C to 85°C) - MIN(-40°C to 85°C)) / MIN(-40°C to 85°C) / (85°C - (-40°C))

(2)

Calculated using the ADC output code and the box method:

(MAX-code(2.5 V to 3.6 V) - MIN-code(2.5 V to 3.6 V)) / MIN-code(2.5 V to 3.6 V) / (3.6 V - 2.5 V)

MSP430F2012IN 数据表(PDF) 45 Page - Texas Instruments

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