C-compatible serial interface in a sot23, Electrical characteristics (continued) – Rainbow Electronics MAX6626 User Manual
Page 3
MAX6625/MAX6626
9-Bit/12-Bit Temperature Sensors with
I
2
C-Compatible Serial Interface in a SOT23
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(+3V
≤ V
S
≤ +5.5V, T
A =
-55°C to +125°C, unless otherwise noted.)
Note 2: Guaranteed by design and characterization to ±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 will
cause self-heating and temperature drift; see 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
SCL’s 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
±1
µA
Input Low Leakage Current
I
IL
V
IN
= 0
±1
µA
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
µA
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
µs
START Condition Hold Time
t
HD:STA
0.6
µs
STOP Condition Setup Time
t
SU:STO
0.6
µs
Clock Low Period
t
LOW
1.3
µs
Clock High Period
t
HIGH
0.6
µs
Data Setup Time
t
SU:DAT
100
ns
Data Hold Time (Note 5)
t
HD:DAT
0
0.9
µs
Maximum Receive SCL/SDA
Rise Time (Note 6)
t
R
300
ns
Minimum Receive SCL/SDA
Rise Time (Note 6)
t
R
20 +
0.1C
B
ns
Maximum Receive SCL/SDA
Fall Time (Note 6)
t
F
300
ns
Minimum Receive SCL/SDA
Fall Time (Note 6)
t
F
20 +
0.1C
B
ns
Transmit SDA Fall Time
(Note 6)
t
F
C
B
= 400pF, I
O
= 3mA
20 +
0.1C
B
250
ns
Pulse Width of Suppressed
Spike (Note 7)
t
SP
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