AD9776A/AD9778A/AD9779A
Rev. B | Page 5 of 56
SPECIFICATIONS
DC SPECIFICATIONS
TMIN to TMAX, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V, IOUTFs = 20 mA, maximum sample rate, unless
otherwise noted.
Table 1.
AD9776A
AD9778A
AD9779A
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
RESOLUTION
12
14
16
Bits
ACCURACY
Differential Nonlinearity (DNL)
±0.1
±0.65
±2.1
LSB
Integral Nonlinearity (INL)
±0.86
±1.5
±6.0
LSB
MAIN DAC OUTPUTS
Offset Error
0.001
0
+0.001
0.001
0
+0.001
0.001
0
+0.001
% FSR
Gain Error (with Internal Reference)
±2
% FSR
Full-Scale Output Current
18.66
20.2
31.66
8.66
20.2
31.66
8.66
20.2
31.66
mA
Output Compliance Range
1.0
+1.0
1.0
+1.0
1.0
+1.0
V
Output Resistance
10
MΩ
Gain DAC Monotonicity
Guaranteed
MAIN DAC TEMPERATURE DRIFT
Offset
0.04
ppm/°C
Gain
100
ppm/°C
Reference Voltage
30
ppm/°C
AUXILIARY DAC OUTPUTS
Resolution
10
Bits
Full-Scale Output Curre
nt11.998
+1.998
1.998
+1.998
1.998
+1.998
mA
Output Compliance Range (Source)
0
1.6
0
1.6
0
1.6
V
Output Compliance Range (Sink)
0.8
1.6
0.8
1.6
0.8
1.6
V
Output Resistance
1
MΩ
Auxiliary DAC Monotonicity
Guaranteed
REFERENCE
Internal Reference Voltage
1.2
V
Output Resistance
5
kΩ
ANALOG SUPPLY VOLTAGES
AVDD33
3.13
3.3
3.47
3.13
3.3
3.47
3.13
3.3
3.47
V
CVDD18
1.70
1.8
2.05
1.70
1.8
2.05
1.70
1.8
2.05
V
DIGITAL SUPPLY VOLTAGES
DVDD33
3.13
3.3
3.47
3.13
3.3
3.47
3.13
3.3
3.47
V
DVDD18
1.70
1.8
2.05
1.70
1.8
2.05
1.70
1.8
2.05
V
1× Mode, fDAC = 100 MSPS, IF = 1 MHz
250
300
250
300
250
300
mW
2× Mode, fDAC = 320 MSPS, IF = 16 MHz, PLL Off
498
mW
2× Mode, fDAC = 320 MSPS, IF = 16 MHz, PLL On
588
mW
4× Mode, fDAC/4 Modulation, fDAC = 500 MSPS,
IF = 137.5 MHz, Q DAC Off
572
mW
8× Mode, fDAC/4 Modulation, fDAC = 1 GSPS,
IF = 262.5 MHz
980
mW
Power-Down Mode
2.5
9.8
2.5
9.8
2.5
9.8
mW
Power Supply Rejection Ratio, AVDD33
0.3
+0.3
0.3
+0.3
0.3
+0.3
% FSR/V
OPERATING RANGE
40
+25
+85
40
+25
+85
40
+25
+85
°C
1 Based on a 10 kΩ external resistor.
2 See the Power Dissipation section for more details.