DAC2932

SBAS279C − AUGUST 2003 − REVISED OCTOBER 2004

www.ti.com

11

TYPICAL CHARACTERISTICS (continued)

TA = +25°C, +VA = +VAV = +3V, +VD = +VDV = +3V, IOUTFS = 2mA, differential transformer-coupled output (n = 4:1), RL = 400Ω on I-DAC,

RL = 2kΩ on V-DAC, and GSET = H unless otherwise noted.

Figure 9

80

75

70

65

60

55

50

0

2

4

6

8

10

12

16

14

18

20

f

SFDR vs I

1.5mA

0.5mA

1mA

2mA

Figure 10

SFDR vs TEMPERATURE

−40

80

75

70

65

60

55

50

−30

70

−20

40

60

50

80 85

−10 0 10 20 30

Temperature (

_C)

2.2MHz, 40MSPS

1MHz, 20MSPS

10MHz, 40MSPS

19.9MHz, 40MSPS

Figure 11

TOTAL HARMONIC DISTORTION vs

f

5

−60

−65

−70

−75

−80

40

35

30

25

20

15

10

f

Figure 12

TOTAL HARMONIC DISTORTION vs TEMPERATURE

f

−40

−50

−55

−60

−65

−70

−75

−80

−85

−90

−30

70

−20

40

60

50

80 85

−10 0 10 20 30

Temperature (

_C)

Figure 13

1.223

1.222

1.221

1.220

1.219

1.218

1.217

1.216

1.215

−40

−20

0

20

40

60

80 85

Temperature (

_C)

REFERENCE VOLTAGE vs TEMPERATURE

Figure 14

1.2201

1.2200

1.2199

2.72.8

2.93.0

3.13.2

3.3

Supply Voltage (V)

REFERENCE VOLTAGE vs SUPPLY VOLTAGE