MAX6625 Datasheet, PDF (3/13 Pages) Maxim Integrated Products – 9-Bit/12-Bit Temperature Sensors with I2C-Compatible Serial Interface in a SOT23

9-Bit/12-Bit Temperature Sensors with
I²C-Compatible Serial Interface in a SOT23
ELECTRICAL CHARACTERISTICS (continued)
(+3V ≤ V_S ≤ +5.5V, T_{A =} -55°C to +125°C, unless otherwise noted.)
PARAMETER
Input High Leakage Current
Input Low Leakage Current
Input Capacitance
Output Low Voltage
Output High Current
I²C-COMPATIBLE TIMING
Serial Clock Frequency
Bus Free Time Between STOP
and START Conditions
START Condition Hold Time
STOP Condition Setup Time
Clock Low Period
Clock High Period
Data Setup Time
Data Hold Time (Note 5)
Maximum Receive SCL/SDA
Rise Time (Note 6)
SYMBOL
I_IH
I_IL
C_IN
V_OL
I_OH
V_IN = +5V
V_IN = 0
I_OL = 3mA
V_OH = 5V
CONDITIONS
f_SCL
t_BUF
t_HD:STA
t_SU:STO
t_LOW
t_HIGH
t_SU:DAT
t_HD:DAT
t_R
MIN TYP MAX UNITS
±1
µA
±1
µA
10
pF
0.4
V
1
µA
DC
400 kHz
1.3
µs
0.6
µs
0.6
µs
1.3
µs
0.6
µs
100
ns
0
0.9
µs
300
ns
Minimum Receive SCL/SDA
Rise Time (Note 6)
t_R
Maximum Receive SCL/SDA
Fall Time (Note 6)
t_F
20 +
ns
0.1C_B
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
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.
SCL
tF
tHD:STA
SDA
tLOW
tR
tSU:DAT
tHIGH
tHD:DAT
tSU:STO
tBUF
Figure 1. Serial Bus Timing
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