AD7653 Analog Devices, AD7653 Datasheet - Page 7

• Manufacturer Part Number: AD7653
• Manufacturer: Analog Devices

Specifications of AD7653

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Par,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: Uni (Vref),Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

ABSOLUTE MAXIMUM RATINGS
Table 5. AD7653 Absolute Maximum Ratings
Parameter
IN
Ground Voltage Differences
Supply Voltages
Digital Inputs
PDREF, PDBUF
Internal Power Dissipation
Internal Power Dissipation
Junction Temperature
Storage Temperature Range
Lead Temperature Range
1
2
3
4
5
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.
Stresses above those listed under Absolute Maximum Ratings may cause
See
See Voltage Reference Input section.
Specification is for the device in free air:
Specification is for the device in free air:
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
48-Lead LQFP; θ
48-Lead LFCSP; θ
INGND, REFGND to AGND
AGND, DGND, OGND
AVDD, DVDD, OVDD
AVDD to DVDD, AVDD to OVDD
DVDD to OVDD
(Soldering 10 sec)
, TEMP
Analog Input
2
,REF, REFBUFIN,
3
section.
JA
JA
= 91°C/W, θ
= 26°C/W.
4
5
JC
= 30°C/W
Rating
AVDD + 0.3 V to
AGND – 0.3 V
±0.3 V
–0.3 V to +7 V
±7 V
–0.3 V to +7 V
–0.3 V to DVDD + 0.3 V
±20 mA
700 mW
2.5 W
150°C
–65°C to +150°C
300°C
1
Rev. A | Page 7 of 28
t
* IN SERIAL INTERFACE MODES,THE SYNC, SCLK, AND
TO OUTPUT
0.8V
DELAY
SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD
C
Figure 2. Load Circuit for Digital Interface Timing,
L
OF 10pF; OTHERWISE,THE LOAD IS 60pF MAXIMUM.
Figure 3. Voltage Reference Levels for Timing
SDOUT, SYNC, SCLK Outputs C
PIN
60pF*
2V
0.8V
C
L
500µA
1.6mA
I
I
OH
OL
2V
L
= 10 pF
t
DELAY
0.8V
2V
02966-0-006
1.4V
02966-0-007
AD7653