ADS1203

SBAS318C − JUNE 2004 − REVISED JANUARY 2008

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12

TYPICAL CHARACTERISTICS (continued)

AVDD = BVDD = +5V or VDD = +5V, VIN+ = −250mV to +250mV, VIN− = 0V, MCLK input = 20MHz, and 16-bit Sinc3 filter, with OSR = 256, unless

otherwise noted.

0

5

10

15

20

Frequency (kHz)

0

−20

−40

−60

−80

−100

−120

−140

FREQUENCY SPECTRUM

(4096 Point FFT, f

IN =1kHz, 0.5VPP)

0

5

10

15

20

Frequency (kHz)

0

−20

−40

−60

−80

−100

−120

−140

FREQUENCY SPECTRUM

(4096 Point FFT, f

IN = 5kHz, 0.5VPP)

CLOCK FREQUENCY vs TEMPERATURE

Temperature (

_C)

10.8

10.5

10.2

9.9

9.6

9.3

−40

40

60

80

20

0

−20

100

CLOCK FREQUENCY vs POWER SUPPLY

Power Supply (V)

10.5

10.3

10.1

9.9

9.7

9.5

4.5

5.1

5.3

4.9

4.7

5.5

COMMON−MODE REJECTION RATIO

vs FREQUENCY

Input Frequency (kHz)

110

105

100

95

90

85

80

75

70

65

60

110

100

POWER−SUPPLY REJECTION RATIO

vs FREQUENCY

Frequency of Power Supply (kHz)

90

85

80

75

70

65

60

55

50

0.1

10

1

100