ADS8345

SBAS177C

5

www.ti.com

TYPICAL CHARACTERISTICS: +5V

At TA = +25°C, +VCC = +5V, VREF = +2.5V, 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)

100

90

80

70

60

SINAD

SNR

SPURIOUS-FREE DYNAMIC RANGE

AND TOTAL HARMONIC DISTORTION

vs INPUT FREQUENCY

10

1

100

Frequency (kHz)

110

100

90

80

70

60

–110

–100

–90

–80

–70

–60

THD

(1)

SFDR

NOTE: (1) First Nine Harmonics

of the Input Frequency

EFFECTIVE NUMBER OF BITS

vs INPUT FREQUENCY

10

1

100

Frequency (kHz)

15.0

14.5

14.0

13.5

13.0

12.5

12.0

11.5

11.0

CHANGE IN SIGNAL-TO-(NOISE + DISTORTION)

vs TEMPERATURE

–50

–25

0

20

50

75

100

Temperature (

°C)

0.2

0.0

–0.2

–0.4

–0.6

–0.8

0.4

f

IN = 4.956kHz, –0.2dB