AD7142 Analog Devices, AD7142 Datasheet - Page 8

• Manufacturer Part Number: AD7142
• Description: Programmable Controller for Capacitance Touch Sensors
• Manufacturer: Analog Devices

Specifications of AD7142

• Resolution (bits): 16bit
• # Chan: 14
• Sample Rate: 250kSPS
• Interface: I²C/Ser 2-Wire,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: ± 2 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD7142
ABSOLUTE MAXIMUM RATINGS
Table 6.
Parameter
AV
Analog Input Voltage to AGND
Digital Input Voltage to DGND
Digital Output Voltage to DGND
Input Current to Any Pin Except
ESD Rating (Human Body Model)
Operating Temperature Range
Storage Temperature Range
Junction Temperature
LFCSP_VQ
IR Reflow Peak Temperature
Lead Temperature (Soldering 10 sec)
1
Transient currents of up to 100 mA do not cause SCR latch-up.
Power Dissipation
θ
Supplies
CC
JA
to AGND, DV
Thermal Impedance
1
CC
to DGND
Rating
−0.3 V to +3.6 V
−0.3 V to AV
−0.3 V to V
−0.3 V to V
10 mA
2.5 kV
−40°C to +150°C
−65°C to +150°C
150°C
450 mW
135.7°C/W
260°C (±0.5°C)
300°C
DRIVE
DRIVE
CC
+ 0.3 V
+ 0.3 V
+ 0.3 V
Rev. A | Page 8 of 72
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
Figure 5. Load Circuit for Digital Output Timing Specifications
TO OUTPUT
PIN
50pF
C
L
200µA
200µA
I
I
OL
OH
1.6V