AD9146 Analog Devices, AD9146 Datasheet - Page 11

• Manufacturer Part Number: AD9146
• Description: Dual, 16-Bit, 1230 MSPS, TxDAC+® Digital-to-Analog Converter
• Manufacturer: Analog Devices

Specifications of AD9146

• Resolution (bits): 16bit
• Dac Update Rate: 1.23GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Byte,LVDS,Nibble

Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5. Second Harmonic vs. f
Figure 6. Third Harmonic vs. f
–50
–55
–60
–65
–70
–75
–80
–85
–90
–50
–55
–60
–65
–70
–75
–80
–85
–90
–50
–55
–60
–65
–70
–75
–80
–85
–90
0
Figure 4. Harmonics vs. f
0
0
0dBFS
–6dBFS
–12dBFS
–18dBFS
0dBFS
–6dBFS
–12dBFS
–18dBFS
50
50
50
Digital Scale = 0 dBFS, I
100
100
100
f
f
DATA
DATA
= 400 MSPS, I
= 400 MSPS, I
150
150
150
OUT
f
f
OUT
f
OUT
2×, 300MSPS, SECOND HARMONIC
4×, 200MSPS, SECOND HARMONIC
2×, 300MSPS, THIRD HARMONIC
4×, 200MSPS, THIRD HARMONIC
OUT
OUT
OUT
over Digital Scale, 4× Interpolation,
200
200
over Digital Scale, 4× Interpolation,
200
over f
(MHz)
(MHz)
(MHz)
FS
FS
DATA
= 20 mA
= 20 mA
FS
250
250
250
= 20 mA
and Interpolation,
300
300
300
350
350
350
400
400
400
Rev. A | Page 11 of 56
Figure 7. Highest Digital Spur vs. f
–60
–62
–64
–66
–68
–70
–72
–74
–76
–78
–80
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
10
0
0
0
START 1MHz
#RES BW 10kHz
START 1MHz
#RES BW 10kHz
Figure 8. Single-Tone Spectrum, 2× Interpolation,
Figure 9. Single-Tone Spectrum, 4× Interpolation,
50
Digital Scale = 0 dBFS, I
f
f
DATA
DATA
100
= 300 MSPS, f
= 200 MSPS, f
150
VBW 10kHz
VBW 10kHz
f
OUT
2×, 300MSPS
200
(MHz)
OUT
OUT
OUT
over f
= 101 MHz
= 151 MHz
FS
250
= 20 mA
SWEEP 7.22s (1001pts)
SWEEP 9.63s (1001pts)
DATA
300
4×, 200MSPS
and Interpolation,
STOP 600MHz
STOP 800MHz
350
AD9146
400