THS5641A

8-BIT, 100 MSPS, CommsDAC

™

DIGITAL-TO-ANALOG CONVERTER

SLAS277 –MARCH 2000

9

POST OFFICE BOX 655303

Figure 9

36

42

48

54

60

66

72

78

2

4

6

8

10

1214

161820

SPURIOUS FREE DYNAMIC RANGE

vs

FULL-SCALE OUTPUT CURRENT AT 100 MSPS

IoutFS – mA

Fout = 2.5 MHz

Fout = 10 MHz

Fout = 28.6 MHz

Fout = 40 MHz

AVDD = 5 V

DVDD = 5 V

30

36

42

48

54

2

4

6

8

10

1214

161820

Figure 10

SIGNAL-TO-NOISE AND DISTORTION RATIO

vs

FULL-SCALE OUTPUT CURRENT AT 100 MSPS

IoutFS – mA

AVDD = 5 V

DVDD = 5 V

Fout = 2.5 MHz

Fout = 10 MHz

Fout = 28.6 MHz

Fout = 40 MHz

Figure 11

48

54

60

66

72

78

0

5

10

15

20

25

SPURIOUS FREE DYNAMIC RANGE

vs

OUTPUT FREQUENCY AT 50 MSPS

Fout – MHz

DIFFERENTIAL OUTPUT

SINGLE-ENDED

OUTPUT IOUT1

AVDD = 5 V

DVDD = 5 V

Figure 12

42

45

48

51

54

0

5

10

15

20

25

SIGNAL-TO-NOISE AND DISTORTION RATIO

vs

OUTPUT FREQUENCY AT 50 MSPS

Fout – MHz

DIFFERENTIAL OUTPUT

SINGLE-ENDED

OUTPUT IOUT1

AVDD = 5 V

DVDD = 5 V

† AVDD and DVDD specified for each chart seperately, IOUTFS = 20 mA, single-ended output IOUT1, 50 Ω doubly terminated load, TA = 25°C

(unless otherwise noted.)