Datasheet

AD9776/AD9778/AD9779
Rev. A | Page 4 of 56
SPECIFICATIONS
DC SPECIFICATIONS
T
MIN
to T
MAX
, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 =1.8 V, = 20 mA, maximum sample rate, unless
otherwise noted.
S
OUTF
I
Table 1. AD9776, AD9778, and AD9779 DC Specifications
AD9776 AD9778 AD9779
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) ±0.6 ±1 ±3.7 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 ±2 ±2 % FSR
Full-Scale Output Current
1
8.66 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 10 10 MΩ
Gain DAC Monotonicity Guaranteed Guaranteed Guaranteed
MAIN DAC TEMPERATURE DRIFT
Offset 0.04 0.04 0.04 ppm/°C
Gain 100 100 100 ppm/°C
Reference Voltage 30 30 30 ppm/°C
AUX DAC OUTPUTS
Resolution 10 10 10 Bits
Full-Scale Output Current
1
−1.998 +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 1 1 MΩ
Aux DAC Monotonicity
Guaranteed
REFERENCE
Internal Reference Voltage 1.2 1.2 1.2 V
Output Resistance 5 5 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 1.90 1.70 1.8 1.90 1.70 1.8 1.90 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 1.90 1.70 1.8 1.90 1.70 1.8 1.90 V
POWER CONSUMPTION
1× Mode, f
DAC
= 100 MSPS,
IF = 1 MHz
250 300 250 300 250 300 mW
2× Mode, f
DAC
= 320 MSPS,
IF = 16 MHz, PLL Off
498 498 498 mW
2× Mode, f
DAC
= 320 MSPS,
IF = 16 MHz, PLL On
588 588 588 mW
4× Mode, f
DAC
/4 Modulation,
f
DAC
= 500 MSPS,
IF = 137.5 MHz, Q DAC Off
572 572 572 mW