AD9778ABSVZ Analog Devices Inc, AD9778ABSVZ Datasheet - Page 34

• Manufacturer Part Number: AD9778ABSVZ
• Description: IC,D/A CONVERTER,DUAL,14-BIT,CMOS,TQFP,100PIN
• Manufacturer: Analog Devices Inc

Specifications of AD9778ABSVZ

• Number Of Bits: 14
• Data Interface: Parallel
• Number Of Converters: 2
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 300mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP Exposed Pad, 100-eTQFP, 100-HTQFP, 100-VQFP
• Package: 100TQFP EP
• Resolution: 14 Bit
• Conversion Rate: 1 GSPS
• Architecture: Interpolation Filter
• Digital Interface Type: Parallel
• Number Of Outputs Per Chip: 2
• Output Type: Current
• Full Scale Error: ±2(Typ) %FSR
• Integral Nonlinearity Error: ±1.5(Typ) LSB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AD9778A-EBZ - BOARD EVALUATION AD9778A
• Settling Time: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9776A/AD9778A/AD9779A
Table 19. Interpolation Filter Modes, (Register 0x01, Bits<5:2>)
Interpolation
Factor<7:6>
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
4
4
4
4
4
4
4
4
2
2
2
2
Filter Mode<5:2>
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x00
0x01
0x02
0x03
Modulation
DC
DC shifted
f
f
f
f
3f
3f
f
f
−3f
−3f
−f
−f
−f
−f
DC
DC shifted
f
f
f
f
−f
−f
DC
DC shifted
f
f
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
/8
/8 shifted
/4
/4 shifted
/2
/2 shifted
DAC
DAC
/4
/4 shifted
/2
/2 shifted
/2
/2 shifted
/8
/8 shifted
/4
/4 shifted
/8
/8 shifted
/4
/4 shifted
/8
/8 shifted
Nyquist Zone
Pass Band
+1
+2
+3
+4
+5
+6
+7
+8
−8
−7
−6
−5
−4
−3
−2
−1
+1
+2
+3
+4
−4
−3
−2
−1
+1
+2
−2
−1
Rev. A | Page 34 of 60
Low
−0.05
+0.0125
+0.075
+0.1375
+0.2
+0.2625
+0.325
+0.3875
−0.55
−0.4875
−0.425
−0.3625
−0.3
−0.2375
−0.175
−0.1125
−0.1
+0.025
+0.15
+0.275
−0.6
−0.475
−0.35
−0.225
−0.2
+0.05
−0.7
−0.45
Frequency Normalized to f
Center
0
+0.0625
+0.125
+0.1875
+0.25
+0.3125
+0.375
+0.4375
−0.5
−0.4375
−0.375
−0.3125
−0.25
−0.1875
−0.125
−0.0625
0
+0.125
+0.25
+0.375
−0.5
−0.375
−0.25
−0.125
0
+0.25
−0.5
−0.25
High
+0.05
+0.1125
+0.175
+0.2375
+0.3
+0.3625
+0.425
+0.4875
−0.45
−0.3875
−0.343
−0.2625
−0.2
−0.1375
−0.075
−0.0125
+0.1
+0.225
+0.35
+0.475
−0.4
−0.275
−0.15
−0.025
+0.2
+0.45
−0.3
−0.05
DAC
Comments
In 8× interpolation;
BW (min) = 0.0375 × f
BW (max) = 0.1 × f
In 4× interpolation;
BW (min) = 0.075 × f
BW (max) = 0.2 × f
In 2× interpolation;
BW (min) = 0.15 × f
BW (max) = 0.4 × f
DAC
DAC
DAC
DAC
DAC
DAC