AD7946 Analog Devices, AD7946 Datasheet - Page 6

• Manufacturer Part Number: AD7946
• Manufacturer: Analog Devices

Specifications of AD7946

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 500kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP,SOP

AD7946
ABSOLUTE MAXIMUM RATINGS
Table 5.
Parameter
Analog Inputs
Supply Voltages
Storage Temperature Range
Junction Temperature
θ
θ
Lead Temperature
1
See the Analog Input section.
JA
JC
IN+
REF
VDD, VIO to GND
VDD to VIO
Digital Inputs to GND
Digital Outputs to GND
10-Lead MSOP
10-Lead QFN
10-Lead MSOP
10-Lead QFN
Vapor Phase (60 sec)
Infrared (15 sec)
Thermal Impedance
Thermal Impedance
1
, IN−
1
Rating
GND − 0.3 V to VDD + 0.3 V or
±130 mA
GND − 0.3 V to VDD + 0.3 V
−0.3 V to +7 V
±7 V
−0.3 V to VIO + 0.3 V
−0.3 V to VIO + 0.3 V
−65°C to +150°C
150°C
200°C/W
48.7°C/W
44°C/W
2.96°C/W
215°C
220°C
30% VIO
NOTES
1
2
2V IF VIO ABOVE 2.5V, VIO – 0.5V IF VIO BELOW 2.5V.
0.8V IF VIO ABOVE 2.5V, 0.5V IF VIO BELOW 2.5V.
t
DELAY
Figure 2. Load Circuit for Digital Interface Timing
SDO
Figure 3. Voltage Levels for Timing
TO
2V or OVDD – 0.5V
0.8V or 0.5V
50pF
C
Rev. A | Page 6 of 24
L
500µA
500µA
2
I
I
OL
OH
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 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
70% OVDD
t
DELAY
2V or VIO – 0.5V
1.4V
0.8V or 0.5V
2
1