AD9776A Analog Devices, AD9776A Datasheet - Page 19

• Manufacturer Part Number: AD9776A
• Description: Dual 12-Bit, 1 GSPS, Digital-to-Analog Converter
• Manufacturer: Analog Devices

Specifications of AD9776A

• Resolution (bits): 12bit
• Dac Update Rate: 1GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

REF 0dBm
*PEAK
log
10dB
LGAV
51
W1
S3
£(f):
FTUN
SWP
START 1.0MHz
*RES BW 20kHz
100
100
S2
FC
AA
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
0
0
30mA
4× Interpolation, f
Digital Full-Scale Input Over Output Frequency,
Full-Scale Output Current Over Output Frequency,
Figure 24. AD9779A IMD Performance vs. f
Figure 25. AD9779A IMD Performance vs. f
40
40
–6dBFS
4× Interpolation, f
80
80
Figure 26. AD9779A Single Tone,
4× Interpolation, f
0dBFS
120
20mA
120
*ATTEN 20dB
VBW 20kHz
–3dBFS
10mA
DATA
160
160
f
f
OUT
OUT
= 100 MSPS, f
200
200
DATA
DATA
(MHz)
(MHz)
= 200 MSPS
= 200 MSPS
240
240
SWEEP 1.203s (601 pts)
280
280
OUT
= 30 MHz
STOP 400.0MHz
DC-COUPLED
320
320
EXT REF
OUT
OUT
,
,
360
360
400
400
Rev. B | Page 19 of 56
REF 0dBm
*PEAK
Log
10dB
LGAV
51
W1
S3
£(f):
FTUN
SWP
START 1.0MHz
*RES BW 20kHz
f
DAC
S2
FC
AA
–150
–154
–158
–162
–166
–170
Over Output Frequency for Eight-Tone Input with 500 kHz Spacing,
–142
–146
–150
–154
–158
–162
–166
–170
Digital Full-Scale Over Output Frequency of Single-Tone Input,
4× Interpolation, f
0
0
Figure 28. AD9779A Noise Spectral Density vs. f
Figure 29. AD9779A Noise Spectral Density vs. f
Figure 27. AD9779A Two-Tone Spectrum,
2× Interpolation, f
20
AD9776A/AD9778A/AD9779A
20
*ATTEN 20dB
f
DAC
VBW 20kHz
DATA
f
= 200MSPS
DATA
= 100 MSPS, f
40
0dBFS
= 200 MSPS
f
f
OUT
40
OUT
DATA
(MHz)
f
–6dBFS
(MHz)
DAC
= 200 MSPS
SWEEP 1.203s (601 pts)
60
= 800MSPS
OUT
f
DAC
= 30 MHz, 35 MHz
60
STOP 400.0MHz
DC-COUPLED
= 400MSPS
–3dBFS
EXT REF
80
OUT
OUT
80
,
,
100