MAX6625/MAX6626
9-Bit/12-Bit Temperature Sensors with
I
2
C-Compatible Serial Interface in a SOT23
3
Maxim Integrated
ELECTRICAL CHARACTERISTICS (continued)
(+3V d V
S
d +5.5V, T
A =
-55癈 to +125癈, unless otherwise noted.)
Note 2: Guaranteed by design and characterization to ?/SPAN>5 sigma.
Note 3: Quantization error not included in specifications for temperature accuracy.
Note 4: Output current should be minimized for best temperature accuracy. Power dissipation within the MAX6625/MAX6626 causes
self-heating and temperature drift; see the Thermal Considerations section.
Note 5: A master device must provide a hold time of at least 300ns for the SDA signal in order to bridge the undefined region of
SCLs falling edge.
Note 6: C
B
= total capacitance of one bus line in pF. Tested with C
B
= 400pF.
Note 7: Input filters on SDA, SCL, and ADD suppress noise spikes less than 50ns.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX    UNITS
Input High Leakage Current
I
IH
V
IN
= +5V
?
Input Low Leakage Current
I
IL
V
IN
= 0
?
Input Capacitance
C
IN
10
pF
Output Low Voltage
V
OL
I
OL
= 3mA
0.4
V
Output High Current
I
OH
V
OH
 = 5V
1
I
2
C-COMPATIBLE TIMING
Serial Clock Frequency
f
SCL
DC
400
kHz
Bus Free Time Between STOP
and START Conditions
t
BUF
1.3
START Condition Hold Time
t
HD:STA
0.6
STOP Condition Setup Time
t
SU:STO
0.6
Clock Low Period
t
LOW
1.3
Clock High Period
t
HIGH
0.6
Data Setup Time
t
SU:DAT
100
ns
Data Hold Time
t
HD:DAT
(Note 5)
0
0.9
Maximum Receive SCL/SDA
Rise Time
t
R
(Note 6)
300
ns
Minimum Receive SCL/SDA
Rise Time
t
R
(Note 6)
20 +
0.1C
B
ns
Maximum Receive SCL/SDA
Fall Time
t
F
(Note 6)
300
ns
Minimum Receive SCL/SDA
Fall Time
t
F
(Note 6)
20 +
0.1C
B
ns
Transmit SDA Fall Time
t
F
C
B
 = 400pF, I
O
 = 3mA (Note 6)
20 +
0.1C
B
250
ns
Pulse Width of Suppressed
Spike
t
SP
(Note 7)
50
ns
Figure 1. Serial Bus Timing
SCL
SDA
t
F
t
LOW
t
SU:DAT
t
HD:STA
t
HD:DAT
t
SU:STO
t
BUF
t
HIGH
t
R
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