AD7143 Analog Devices, AD7143 Datasheet - Page 5
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AD7143
Manufacturer Part Number
AD7143
Description
Programmable Controller for Capacitance Touch Sensors
Manufacturer
Analog Devices
Datasheet
1.AD7143.pdf
(56 pages)
Specifications of AD7143
Resolution (bits)
16bit
# Chan
8
Sample Rate
n/a
Interface
I²C/Ser 2-Wire,Ser
Analog Input Type
n/a
Ain Range
± 2 pF (Delta C)
Adc Architecture
Sigma-Delta
Pkg Type
CSP
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I
T
from a voltage level of 1.6 V.
Table 4. I
Parameter
f
t
t
t
t
t
t
t
t
t
t
1
SCLK
2
1
2
3
4
5
6
7
8
R
F
Guaranteed by design, not production tested.
A
C TIMING SPECIFICATIONS
= −40°C to +85°C, V
2
C Timing Specifications
Limit
400
0.6
1.3
0.6
100
300
0.6
0.6
1.3
300
300
CC
= 2.6 V to 3.6 V, unless otherwise noted. Sample tested at 25°C to ensure compliance. All input signals timed
Unit
kHz max
μs min
μs min
μs min
ns min
ns min
μs min
μs min
μs min
ns max
ns max
1
Figure 2. Load Circuit for Digital Output Timing Specifications
TO OUTPUT
Description
Start condition hold time, t
Clock low period, t
Clock high period, t
Data setup time, t
Data hold time, t
Stop condition setup time, t
Start condition setup time, t
Bus free time between stop and start conditions, t
Clock/data rise time
Clock/data fall time
PIN
Rev. 0 | Page 5 of 56
50pF
C
L
200µA
200µA
HD; DAT
SU; DAT
LOW
HIGH
I
I
OL
OH
HD; STA
SU; STO
SU; STA
1.6V
BUF
AD7143