Datasheet

Data Sheet ADG2108
Rev. B | Page 7 of 28
I
2
C TIMING SPECIFICATIONS
V
DD
= 5 V to 12 V; V
SS
= −5 V to 0 V; V
L
= 5 V; GND = 0 V; T
A
= T
MIN
to T
MAX
, unless otherwise noted (see Figure 2).
Table 3.
ADG2108 Limit at T
MIN
, T
MAX
Parameter
1
Conditions Min Max Unit Description
f
SCL
Standard mode 100 kHz Serial clock frequency
Fast mode 400 kHz
High speed mode
2
C
B
= 100 pF maximum
3.4
MHz
C
B
= 400 pF maximum 1.7 MHz
t
1
Standard mode 4 µs t
HIGH
, SCL high time
Fast mode
0.6
µs
High speed mode
2
C
B
= 100 pF maximum 60 ns
C
B
= 400 pF maximum 120 ns
t
2
Standard mode 4.7 µs t
LOW
, SCL low time
Fast mode 1.3 µs
High speed mode
2
C
B
= 100 pF maximum 160 ns
C
B
= 400 pF maximum
320
ns
t
3
Standard mode 250 ns t
SU ;DAT
, data setup time
Fast mode 100 ns
High speed mode
2
10
ns
t
4
3
Standard mode 0 3.45 µs t
HD;DAT
, data hold time
Fast mode 0 0.9 µs
High speed mode
2
C
B
= 100 pF maximum 0 70 ns
C
B
= 400 pF maximum 0 150 ns
t
5
Standard mode
4.7
µs
t
SU;STA
, setup time for a repeated start condition
Fast mode 0.6 µs
High speed mode
2
160 ns
t
6
Standard mode 4 µs t
HD;STA
, hold time for a repeated start condition
Fast mode 0.6 µs
High speed mode
2
160 ns
t
7
Standard mode 4.7 µs t
BUF
, bus free time between a stop and a start condition
Fast mode 1.3 µs
t
8
Standard mode 4 µs t
SU;STO
, setup time for a stop condition
Fast mode 0.6 µs
High speed mode
2
160 ns
t
9
Standard mode
1000
ns
t
RDA
, rise time of SDA signal
Fast mode 20 + 0.1 C
B
300 ns
High speed mode
2
C
B
= 100 pF maximum 10 80 ns
C
B
= 400 pF maximum 20 160 ns
t
10
Standard mode 300 ns t
FDA
, fall time of SDA signal
Fast mode 20 + 0.1 C
B
300 ns
High speed mode
2
C
B
= 100 pF maximum 10 80 ns
C
B
= 400 pF maximum 20 160 ns