ad7147a-1acbz-r Analog Devices, Inc., ad7147a-1acbz-r Datasheet - Page 6

• Manufacturer Part Number: ad7147a-1acbz-r
• Description: Captouch Programmable Controller For Single-electrode Capacitance Sensors
• Manufacturer: Analog Devices, Inc.

AD7147A
I
T
noted. All input signals timed from a voltage level of 1.6 V.
Table 5. I
Parameter
f
t
t
t
t
t
t
t
t
t
t
1
I
SCLK
1
2
3
4
5
6
7
8
R
F
2
2
Guaranteed by design, not production tested.
A
C Timing Diagram
C TIMING SPECIFICATIONS (AD7147A-1)
= −40°C to +85°C, sample tested at 25°C to ensure compliance. V
2
SCLK
C Timing Specifications
SDA
STOP START
Limit
400
0.6
1.3
0.6
100
300
0.6
0.6
1.3
300
300
t
8
t
1
t
2
1
t
5
Figure 4. Load Circuit for Digital Output Timing Specifications
t
R
TO OUTPUT
Unit
kHz max
μs min
μs min
μs min
ns min
ns min
μs min
μs min
μs min
ns max
ns max
Figure 3. I
t
F
PIN
t
3
50pF
Rev. 0 | Page 6 of 68
2
t
C
C Detailed Timing Diagram
4
L
200µA
200µA
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
DRIVE
= 1.65 V to 3.6 V, and V
I
I
OL
OH
START
1.6V
HD; DAT
SU; DAT
t
7
LOW
HIGH
t
1
HD; STA
SU; STO
SU; STA
CC
= 2.6 V to 3.6 V, unless otherwise
t
6
BUF
STOP