Datasheet

AD7667
Rev. 0 | Page 7 of 28
ABSOLUTE MAXIMUM RATINGS
Table 5. AD7667 Stress Ratings
1
Parameter Rating
IN
2
, TEMP
2
, REF, REFBUFIN,
INGND, REFGND to AGND
AVDD + 0.3 V to
AGND – 0.3 V
Ground Voltage Differences
AGND, DGND, OGND ±0.3 V
Supply Voltages
AVDD, DVDD, OVDD –0.3 V to +7 V
AVDD to DVDD, AVDD to OVDD ±7 V
DVDD to OVDD –0.3 V to +7 V
Digital Inputs –0.3 V to DVDD + 0.3 V
PDREF, PDBUF
3
±20 mA
Internal Power Dissipation
4
700 mW
Internal Power Dissipation
5
2.5 W
Junction Temperature 150°C
Storage Temperature Range –65°C to +150°C
Lead Temperature Range
(Soldering 10 sec)
300°C
1
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 listed
in the operational sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device
reliability.
2
See section. Analog Input
3
See the Voltage Reference Input section.
4
Specification is for the device in free air:
48-Lead LQFP; θ
JA
= 91°C/W, θ
JC
= 30°C/W.
5
Specification is for the device in free air:
48-Lead LFCSP; θ
JA
= 26°C/W
I
OH
500µA
1.6mA
I
OL
TO OUTPUT
PIN
1.4V
C
L
60pF *
*IN SERIAL INTERFACE MODES,THE SYNC, SCLK, AND
SDOUT TIMINGS ARE DEFINEDWITH A MAXIMUM LOAD
C
L
OF 10pF; OTHERWISE,THE LOAD IS 60pF MAXIMUM.
03033-0-002
Figure 2. Load Circuit for Digital Interface Timing,
SDOUT, SYNC, SCLK Outputs C
L
= 10 pF
0.8V
2V
2V
0.8V
0.8V
2V
t
DELAY
t
DELAY
03033-0-003
Figure 3. Voltage Reference Levels for Timing
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.