AD7745 Analog Devices, AD7745 Datasheet - Page 6

• Manufacturer Part Number: AD7745
• Description: 24-bit, 1 Channel Capacitance to Digital Converter
• Manufacturer: Analog Devices

Specifications of AD7745

• Resolution (bits): 24bit
• # Chan: 1
• Sample Rate: n/a
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref) p-p,± 4 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

AD7745/AD7746
ABSOLUTE MAXIMUM RATINGS
T
Table 3.
Parameter
Positive Supply Voltage V
Voltage on any Input or Output Pin to
GND
ESD Rating (ESD Association Human Body
Model, S5.1)
Operating Temperature Range
Storage Temperature Range
Junction Temperature
Lead Temperature, Soldering
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.
A
TSSOP Package θ
(Thermal Impedance-to-Case)
TSSOP Package θ
(Thermal Impedance-to-Air)
Vapor Phase (60 sec)
Infrared (15 sec)
= 25°C, unless otherwise noted.
JA
JC
,
,
DD
to GND
Rating
−
–0.3 V to V
2000 V
–40°C to +125°C
–65°C to +150°C
150°C
128°C/W
14°C/W
215°C
220°C
0.3 V to +6.5 V
DD
+ 0.3 V
Rev. 0 | Page 6 of 28
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only and 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.