Datasheet

AD7623
Rev. 0 | Page 7 of 28
ABSOLUTE MAXIMUM RATINGS
Table 5.
Parameter Rating
Analog Inputs/Outputs
IN+
1
, IN−, REF, REFBUFIN, TEMP,
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 –0.3 V to +2.7 V
OVDD –0.3 V to +3.8 V
AVDD to DVDD ±2.8 V
AVDD to OVDD +2.8 V to −3.8 V
OVDD to DVDD
2
≤ +0.3 V if DVDD < 2.3 V
Digital Inputs −0.3 V to +5.5 V
PDREF, PDBUF
3
±20 mA
Internal Power Dissipation
4
700 mW
Internal Power Dissipation
5
2.5 W
Junction Temperature 125°C
Storage Temperature Range –65°C to +125°C
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.
1
See the Analog Inputs section.
2
See the Power Supply section.
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.
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.