AD7143 Analog Devices, AD7143 Datasheet - Page 5

• Manufacturer Part Number: AD7143
• Description: Programmable Controller for Capacitance Touch Sensors
• Manufacturer: Analog Devices

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

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