ADS1602

SBAS341B − DECEMBER 2004 − REVISED APRIL 2005

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11

TYPICAL CHARACTERISTICS (continued)

All specifications at TA = 25°C, AVDD = 5V, DVDD = IOVDD = 3V, fCLK = 40MHz, External VREF = +3V, VCM = +1.45V, and RBIAS = 37kΩ,

unless otherwise noted.

Figure 15

−80

−70

−60

−50

−40

−30

−20

−10

0

Input Signal Amplitude, V

SNR, THD, and SFDR vs INPUT SIGNAL AMPLITUDE

SFDR

SNR

THD

140

120

100

80

60

40

20

f

Figure 16

−80

−70

−60

−50

−40

−30

−20

−10

0

Input Signal Amplitude, V

SNR, THD, and SFDR vs INPUT SIGNAL AMPLITUDE

SFDR

SNR

THD

120

110

100

90

80

70

60

50

40

30

20

f

Figure 17

140

120

100

80

60

40

20

−80

−70

−60

−50

−40

−30

−20

−10

0

Input Signal Amplitude, V

SNR, THD, and SFDR vs INPUT SIGNAL AMPLITUDE

SFDR

SNR

f

THD

Figure 18

140

120

100

80

60

40

20

−80

−70

−60

−50

−40

−30

−20

−10

0

Input Signal Amplitude, V

SNR, THD, and SFDR vs INPUT SIGNAL AMPLITUDE

SFDR

SNR

f

THD

Figure 19

140

120

100

80

60

40

20

−80

−70

−60

−50

−40

−30

−20

−10

0

Input Signal Amplitude, V

SNR, THD, and SFDR vs INPUT SIGNAL AMPLITUDE

SFDR

SNR

THD

f

Figure 20

10k100k1M

Input Frequency, f

SIGNAL−TO−NOISE RATIO

vs INPUT FREQUENCY

95

90

85

80

75

70

V

V

V