AD7879 Analog Devices, AD7879 Datasheet - Page 6

• Manufacturer Part Number: AD7879
• Description: Low Voltage Controller for Touch Screens
• Manufacturer: Analog Devices

Specifications of AD7879

• Resolution (bits): 12bit
• # Chan: 6
• Sample Rate: 105kSPS
• Interface: I²C/Ser 2-Wire,Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni Vdd
• Adc Architecture: SAR
• Pkg Type: CSP,WLCSP

AD7879/AD7889
ABSOLUTE MAXIMUM RATINGS
T
Table 4.
Parameter
V
Analog Input Voltage to GND
AUX/VBAT to GND
Digital Input Voltage to GND
Digital Output Voltage to GND
Input Current to Any Pin Except Supplies
ESD Rating (X+, Y+, X−, Y−)
ESD Rating (All Other Pins)
Operating Temperature Range
Storage Temperature Range
Junction Temperature
Power Dissipation
IR Reflow Peak Temperature
Lead Temperature (Soldering 10 sec)
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.
Transient currents of up to 100 mA do not cause SCR latch-up.
CC
A
Air Discharge Human Body Model
Contact Human Body Model
Human Body Discharge
Field-Induced Charged Device Model
Machine Model
WLCSP (4-Layer Board)
LFCSP (4-Layer Board)
= 25°C, unless otherwise noted.
to GND
1
Rating
−0.3 V to +3.6 V
−0.3 V to V
−0.3 V to +5 V
−0.3 V to V
−0.3 V to V
10 mA
15 kV
10 kV
4 kV
1 kV
0.2 kV
−40°C to +85°C
−65°C to +150°C
150°C
866 mW
2.138 W
260°C (±0.5°C)
300°C
CC
CC
CC
+ 0.3 V
+ 0.3 V
+ 0.3 V
Rev. C | Page 6 of 40
THERMAL RESISTANCE
θ
soldered in a circuit board for surface-mount packages.
Table 5. Thermal Resistance
Package Type
12-Ball WLCSP
16-Lead LFCSP
1
ESD CAUTION
4-layer board.
JA
is specified for the worst-case conditions, that is, a device
TO OUTPUT
1
Figure 4. Circuit Used for Digital Timing
PIN
50pF
C
L
200µA
200µA
θ
75
30.4
I
I
OL
OH
JA
1.4V
Unit
°C/W
°C/W