ADS1625

ADS1626

SBAS280E − JUNE 2003 − REVISED MAY 2007

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13

TYPICAL CHARACTERISTICS (continued)

All specifications at TA = 25°C, AVDD = 5V, DVDD = IOVDD = 3V, fCLK = 40MHz, External VREF = +3V, VCM = 2.0V, and RBIAS = 37kΩ,

unless otherwise noted.

NOISE HISTOGRAM

9k

8k

7k

6k

5k

4k

3k

2k

1k

0

Output Code (LSB)

V

INTERMODULATION RESPONSE

400

450

500

550

600

Frequency (MHz)

0

−20

−40

−60

−80

−100

−120

−140

−160

f

f

IMD =

−98dB

SIGNAL−TO−NOISE RATIO, TOTAL HARMONIC DISTORTION,

AND SPURIOUS−FREE DYNAMIC RANGE

vs INPUT SIGNAL AMPLITUDE

−70

−60

−50

−40

−30

−20

−10

0

Input Signal Amplitude, V

110

100

90

80

70

60

50

40

30

20

10

SFDR

THD

SNR

f

SIGNAL−TO−NOISE RATIO

vs INPUT FREQUENCY

1k

10k

100k

1M

Input Frequency, f

95

90

85

80

75

70

V

V

V

TOTAL HARMONIC DISTORTION

vs INPUT FREQUENCY

1k

10k

100k

1M

Input Frequency, f

−80

−85

−90

−95

−100

−105

−110

−115

−120

V

V

V

SPURIOUS−FREE DYNAMIC RANGE

vs INPUT FREQUENCY

1k

10k

100k

1M

Input Frequency, f

130

125

120

115

110

105

100

95

90

V

V

V