Datasheet

AD9911
Rev. 0 | Page 9 of 44
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Rating
Maximum Junction Temperature 150°C
DVDD_I/O (Pin 49) 4 V
AVDD, DVDD 2 V
Digital Input Voltage (DVDD_I/O = 3.3 V) −0.7 V to +4 V
Digital Output Current 5 mA
Storage Temperature –65°C to +150°C
Operating Temperature –40°C to +85°C
Lead Temperature (10 sec Soldering) 300°C
θ
JA
21°C/W
θ
JC
2°C/W
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
EQUIVALENT INPUT AND OUTPUT CIRCUITS
CMOS
DIGITAL INPUTS
NOTES
1. AVOID OVERDRIVING DIGITAL
INPUTS.
DVDD_I/O = 3.3V
INPUT OUTPUT
05785-003
DAC OUTPUTS
NOTES
1. TERMINATE OUTPUTS
INTO AVDD.
2. DO NOT EXCEED
OUTPUTS VOLTAGE
COMPLIANCE.
IOUT
IOUT
05785-004
REF_CLK INPUTS
NOTES
1. REF_CLK INPUTS ARE INTERNALLY BIASED AND
NEED TO BE AC-COUPLED.
2. OSC INPUTS ARE DC-COUPLED.
AMP
REF_CLK REF_CLK
OSC
AVDD
1.5kΩ
AVDD
1.5kΩ
AVDD
Z Z
05785-005
Figure 3. CMOS Digital Inputs
Figure 4. DAC Outputs
Figure 5. REF_CLK Inputs