ADS1606IPAPR datasheet(14/38 Pages) TI

14 / 38 page

ADS1605

ADS1606

SBAS274H − MARCH 2003 − REVISED MAY 2007

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TYPICAL CHARACTERISTICS (continued)

All specifications at TA = 25°C, AVDD = 5V, DVDD = IOVDD = 3V, fCLK = 40MHz, External VREF = +3V, 2XMODE = low, VCM = 2.0V, and

RBIAS = 37kΩ, unless otherwise noted.

SIGNAL−TO−NOISE RATIO

vs INPUT COMMON−MODE VOLTAGE

1.5

1.9

1.7

2.1

2.3

2.5

Input Common−Mode Voltage, V

CM (V)

IN = − 6dBFS

IN = − 2dBFS

IN = 100kHz

TOTAL HARMONIC DISTORTION

vs INPUT COMMON−MODE VOLTAGE

1.5

1.9

1.7

2.1

2.3

2.5

Input Common−Mode Voltage, V

CM (V)

−65

−75

−85

−95

−105

−115

−125

−135

IN = −6dBFS

IN = −2dBFS

IN = 100kHz

SPURIOUS−FREE DYNAMIC RANGE

vs INPUT COMMON−MODE VOLTAGE

1.5

1.9

1.7

2.1

2.3

2.5

Input Common−Mode Voltage, V

CM (V)

105

100

IN = − 6dBFS

IN = − 2dBFS

IN = 100kHz

SIGNAL−TO−NOISE RATIO

vs CLK FREQUENCY

IN = 100kHz, − 6dBFS

BIAS =60kΩ

BIAS = 30kΩ

BIAS = 50kΩ

BIAS = 45kΩ

BIAS =37kΩ

CLK Frequency, f

CLK (MHz)

TOTAL HARMONIC DISTORTION

vs CLK FREQUENCY

−65

−70

−75

−80

−85

−90

−95

−100

−105

IN = 100kHz, −6dBFS

CLK Frequency, f

CLK (MHz)

BIAS =60kΩ

BIAS =37kΩ

BIAS = 30kΩ

BIAS =50kΩ

BIAS =45kΩ

SPURIOUS−FREE DYNAMIC RANGE

vs CLK FREQUENCY

110

105

100

IN =100kHz, − 6dBFS

CLK Frequency, f

CLK (MHz)

BIAS = 45kΩ

BIAS = 50kΩ

BIAS = 60kΩ

BIAS =30kΩ

BIAS =37kΩ

ADS1606IPAPR Scheda tecnica(PDF) 14 Page - Texas Instruments

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