MAX11645 Maxim Integrated Products, MAX11645 Datasheet - Page 4

• Manufacturer Part Number: MAX11645
• Description: 2-Wire Serial 12-Bit ADCs
• Manufacturer: Maxim Integrated Products

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
1-/2-Channel, 2-Wire Serial, 12-Bit ADCs
TIMING CHARACTERISTICS (Figure 1)
(V
1.7MHz, T
4
TIMING CHARACTERISTICS FOR FAST MODE
Serial-Clock Frequency
Bus Free Time Between a STOP (P)
and a START (S) Condition
Hold Time for START Condition
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated START
(Sr) Condition
Data Hold Time
Data Setup Time
Rise Time of Both SDA and SCL
Signals, Receiving
Fall Time of SDA Transmitting
Setup Time for STOP Condition
Capacitive Load for Each Bus Line
Pulse Width of Spike Suppressed
TIMING CHARACTERISTICS FOR HIGH-SPEED MODE (C
Serial-Clock Frequency
Hold Time, Repeated START
Condition
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated START
Condition
Data Hold Time
Data Setup Time
Rise Time of SCL Signal
(Current Source Enabled)
DD
_______________________________________________________________________________________
= 2.7V to 3.6V (MAX11645), V
A
PARAMETER
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
DD
SYMBOL
t
t
t
t
t
t
t
t
t
HD,DAT
HD
HD,STA
SU,DAT
SU,STO
HD,STA
SU
SU
SU,STA
t
f
t
= 4.5V to 5.5V (MAX11644), V
t
t
t
t
f
HIGH
SCLH
HIGH
LOW
LOW
BUF
RCL
SCL
C
t
t
t
SP
,
,
,
R
F
STA
DAT
DAT
B
(Note 10)
Measured from 0.3V
Measured from 0.3V
(Note 13)
(Note 10)
B
= 400pF, Note 12)
CONDITIONS
DD
DD
REF
- 0.7V
- 0.7V
= 2.048V (MAX11645), V
A
= +25°C, see Tables 1–5 for programming notation.)
DD
DD
(Note 11)
20 + 0.1C
20 + 0.1C
MIN
100
160
320
120
160
1.3
0.6
1.3
0.6
0.6
0.6
REF
10
20
0
0
= 4.096V (MAX11644), f
B
B
TYP
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MAX
400
900
300
300
400
150
1.7
50
80
UNITS
MHz
kHz
SCL
pF
µs
µs
µs
µs
µs
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
=