ADS8321

5

SBAS123B

www.ti.com

TYPICAL PERFORMANCE CURVES (Cont.)

At TA = +25°C, VCC = +5V, VREF = +2.5V, fSAMPLE = 100kHz, fCLK = 24 • fSAMPLE, unless otherwise specified.

MAXIMUM SAMPLE RATE vs V

CC

1000

100

10

1

12345

V

CC (V)

SIGNAL-TO-NOISE AND SIGNAL-TO-(NOISE + DISTORTION)

vs INPUT FREQUENCY

90

85

80

75

70

65

0.1

1

100

10

Input Frequency (kHz)

SNR

SINAD

SPURIOUS FREE DYNAMIC RANGE AND

TOTAL HARMONIC DISTORTION vs INPUT FREQUENCY

90

85

80

75

70

65

0.1

1

100

10

Input Frequency (kHz)

SFDR

THD

NOISE vs REFERENCE VOLTAGE

18

16

14

12

10

8

6

4

2

0

0.1

1

10

Reference Voltage (V)

REFERENCE CURRENT vs SAMPLE RATE

35

30

25

20

15

10

5

0

0

20

40

60

80

100

120

140

Sample Rate (kHz)

2.5V

1.25V

CHANGE IN GAIN vs REFERENCE VOLTAGE

15

10

5

0

–5

–10

–15

0

0.5

1.0

1.5

2.0

2.5

3.0

Reference Voltage (V)