ADS8345

SBAS177C

7

www.ti.com

TYPICAL CHARACTERISTICS: +5V (Cont.)

At TA = +25°C, +VCC = +2.5V, VREF = +2.5V, fSAMPLE = 100kHz, and fDCLK = 24 • fSAMPLE = 2.4MHz, unless otherwise noted.

WORST-CASE CHANNEL-TO-CHANNEL

GAIN MATCH vs TEMPERATURE

–50

–25

0

25

50

75

100

Temperature (

°C)

0.5

0.4

0.3

0.2

0.1

COMMON-MODE REJECTION vs FREQUENCY

0.1

1

10

100

Frequency (kHz)

100

90

80

70

60

50

V

CM = 2Vp-p Sinewave Centered Around VREF

TYPICAL CHARACTERISTICS: +2.7V

At TA = +25°C, +VCC = +2.7V, VREF = +1.25V, fSAMPLE = 100kHz, and fDCLK = 24 • fSAMPLE = 2.4MHz, unless otherwise noted.

0

–20

–40

–60

–80

–100

–120

–140

FREQUENCY SPECTRUM

(4096 Point FFT; f

IN = 1.001kHz, –0.2dB)

0

10203040

50

Frequency (kHz)

0

–20

–40

–60

–80

–100

–120

–140

FREQUENCY SPECTRUM

(4096 Point FFT; f

IN = 9.985kHz, –0.2dB)

0

10203040

50

Frequency (kHz)

SIGNAL-TO-NOISE RATIO AND

SIGNAL-TO-(NOISE + DISTORTION)

vs INPUT FREQUENCY

10

1

100

Frequency (kHz)

95

85

75

65

55

SINAD

SNR

SPURIOUS-FREE DYNAMIC RANGE

AND TOTAL HARMONIC DISTORTION

vs INPUT FREQUENCY

10

1

100

Frequency (kHz)

100

90

80

70

60

50

–100

–90

–80

–70

–60

–50

THD

(1)

SFDR

NOTE: (1) First Nine Harmonics

of the Input Frequency