Datasheet

AD7653
ABSOLUTE MAXIMUM RATINGS
Table 5. AD7653 Absolute Maximum 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.
3
See 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.
Analog Input
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 DEFINED WITH A MAXIMUM LOAD
C
L
OF 10pF; OTHERWISE,THE LOAD IS 60pF MAXIMUM.
02966-0-006
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
02966-0-007
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.
Rev. A | Page 7 of 28