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THS5661A Datasheet, PDF (10/31 Pages) Texas Instruments – 12-BIT, 125 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER | |||
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THS5661A
12-BIT, 125 MSPS, CommsDACâ¢
DIGITAL-TO-ANALOG CONVERTER
SLAS247 â NOVEMBER 1999
TYPICAL CHARACTERISTICSâ
SPURIOUS FREE DYNAMIC RANGE
vs
AOUT AT FOUT = FCLOCK/11
78
DVDD = 5 V
4.55 MHz @ 50 MSPS
72
66
6.36 MHz @ 70 MSPS
60
9.1 MHz @ 100 MSPS
54
48
â27 â24 â21 â18 â15 â12 â9 â6 â3 0
Aout â dBFS
Figure 13
DUAL TONE SPURIOUS FREE DYNAMIC RANGE
vs
AOUT AT FOUT = FCLOCK/7
78
DVDD = 5 V
72
0.675/0.725 MHz @ 5 MSPS
3.38/3.63 MHz @ 25 MSPS
66
60
SPURIOUS FREE DYNAMIC RANGE
vs
AOUT AT FOUT = FCLOCK/5
78
DVDD = 5 V
72
5 MHz @ 25 MSPS
66
10 MHz @ 50 MSPS
60
54
48
14 MHz @ 70 MSPS
20 MHz @ 100 MSPS
42
â27 â24 â21 â18 â15 â12 â9 â6 â3 0
Aout â dBFS
Figure 14
TOTAL HARMONIC DISTORTION
vs
CLOCK FREQUENCY AT FOUT = 2 MHz
â66
DVDD = 5 V
â72
2nd Harmonic
â78
3rd Harmonic
13.5/14.5 MHz
54
@ 100 MSPS
6.75/7.25 MHz @ 50 MSPS
9.67/10.43 MHz @ 70 MSPS
48
â27 â24 â21 â18 â15 â12 â9 â6 â3 0
Aout â dBFS
Figure 15
â84
4th Harmonic
â90
0
20
40
60
80 100 120
Fclock âClock Frequency â MSPS
Figure 16
â AVDD = 5 V, IOUTFS = 20 mA, differential transformer coupled output, 50 ⦠doubly terminated load, TA = 25°C (unless otherwise
noted.)
10
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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