THS5661A

12BIT, 125 MSPS, CommsDAC

DIGITALTOANALOG CONVERTER

SLAS247B − NOVEMBER 1999 REVISED SEPTEMBER 2002

11

POST OFFICE BOX 655303

Figure 17

48

54

60

66

72

78

2468

10

12

14

16

18

20

SPURIOUS FREE DYNAMIC RANGE

vs

FULL-SCALE OUTPUT CURRENT AT 100 MSPS

IOUTFS −Full Scale Output Current − mA

Fout = 2.5 MHz

Fout = 10 MHz

Fout = 28.6 MHz

Fout = 40 MHz

DVDD = 5 V

Figure 18

36

42

48

54

60

66

72

78

84

0

5

10

15

20

25

30

35

40

45

50

SPURIOUS FREE DYNAMIC RANGE

vs

OUTPUT FREQUENCY AT 100 MSPS

Fout Output Frequency− MHz

Differential @ −6 dBFS

Single-ended @ 0 dBFS

Single-ended

@ −6 dBFS

Differential @ 0 dBFS

DVDD = 5 V

Figure 19

48

54

60

66

72

78

−40

−20

0

20

40

60

80

SPURIOUS FREE DYNAMIC RANGE

vs

TEMPERATURE AT 70 MSPS

TA Temperature− °C

Fout = 2 MHz

Fout = 10 MHz

Fout = 25 MHz

DVDD = 5 V

†AV

DD = 5 V, IOUTFS = 20 mA, differential transformer coupled output, 50 Ω doubly terminated load, TA = 25°C (unless otherwise

noted.)