Datasheet

AD9726
Rev. B | Page 3 of 24
SPECIFICATIONS
DC SPECIFICATIONS
DBVDD = AVDD1 = AVDD2 = 3.3 V, DVDD = CLKVDD = ADVDD = ACVDD = 2.5 V, I
OUT-FS
= 20 mA, internal reference,
T
MIN
to T
MAX
, unless otherwise specified.
Table 1.
Parameter Min Typ Max Unit
ACCURACY
1
DNL ±0.5 ±1.0 LSB
INL ±1.0 ±2.5 LSB
Offset Error 0.003 % FS
Gain Error 0.003 % FS
ANALOG OUTPUT
Full-Scale Current 20 mA
Compliance Voltage ±1 V
Output Impedance 10 MΩ
INTERNAL REFERENCE
Output Voltage 1.18 1.22 1.27 V
Output Current
2
1 μA
EXTERNAL REFERENCE
Input Voltage 1.2 V
Input Resistance 10 MΩ
Small Signal Bandwidth 200 kHz
TEMPERATURE COEFFICIENTS
Gain Drift ±10 ppm of FS/ºC
Offset Drift ±10 ppm of FS/ºC
Reference Drift ±30 ppm/ºC
POWER SUPPLIES
3
AVDD1, AVDD2
Voltage Range 3.13 3.47 V
Supply Current (I
AVDD1
+ I
AVDD2
) 52 60 mA
ADVDD, ACVDD
Voltage Range 2.37 2.63 V
Supply Current (I
ACVDD
+ I
ADVDD
) 16 18 mA
CLKVDD
Voltage Range 2.37 2.63 V
Supply Current (I
CLKVDD
) 45 50 mA
DVDD
Voltage Range 2.37 2.63 V
Supply Current (I
DVDD
) 80 90 mA
DBVDD
Voltage Range 3.13 3.47 V
Supply Current (I
DBVDD
) 16 18 mA
POWER DISSIPATION (P
DISS
) 575 mW
Sleep Mode 465 mW
Power-Down Mode ≤10 mW
OPERATING TEMPERATURE RANGE −40 +85 °C
1
T
AMB
= 25°C.
2
Use buffer amplifier to drive external load.
3
Supply currents and power dissipation measured in SDR with f
DAC
= 400 MHz and f
OUT
= 1 MHz.