AD9780 Analog Devices, AD9780 Datasheet - Page 15

• Manufacturer Part Number: AD9780
• Description: Dual 12-Bit, LVDS Interface 500 MSPS DAC
• Manufacturer: Analog Devices

Specifications of AD9780

• Resolution (bits): 12bit
• Dac Update Rate: 500MSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: LVDS,Par

Figure 43. AD9781 One-Tone, Eight-Tone NSD vs. f
Figure 41. AD9781 SFDR vs. f
Figure 42. AD9781 IMD vs. f
–140
–142
–144
–146
–148
–150
–152
–154
–156
–158
–160
–162
–164
–166
–168
–170
100
100
95
90
85
80
75
70
65
60
55
50
45
40
95
90
85
80
75
70
65
60
55
50
45
40
0
0
0
IMD @ 500MSPS
50
60
50
100
120
100
Modes, at 500 MSPS, FS = 20 mA
150
180
150
OUT
OUT
in Baseband and Mix Modes, at 500 MSPS,
200
FS = 20 mA
240
FS = 20 mA
in Baseband and Mix Modes, at 500 MSPS,
200
f
f
OUT
OUT
f
OUT
1-TONE
8-TONE
250
300
250
(MHz)
(MHz)
(MHz)
300
360
300
350
420
350
OUT
in Baseband and Mix
400
480
400
450
540
450
500
600
500
Rev. A | Page 15 of 36
Figure 44. AD9781 ACLR for One-Carrier W-CDMA Baseband and Mix Modes,
–0.02
–0.04
–0.06
–0.08
–0.10
–0.12
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
0.04
0.02
0.2
0.1
–50
–55
–60
–65
–70
–75
–80
–85
–90
0
0
0
0
0
Figure 46. AD9780 DNL, FS = 20 mA
Figure 45. AD9780 INL, FS = 20 mA
100
1024
1024
at 491.52 MSPS, FS = 20 mA
AD9780/AD9781/AD9783
ADJACENT
CHANNEL
200
FIRST
f
CODE
OUT
CODE
2048
2048
ADJACENT
CHANNEL
SECOND
(MHz)
300
3072
3072
400
ADJACENT
CHANNEL
THIRD
4096
4096
500