Datasheet
LM73
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SNIS141D –OCTOBER 2005–REVISED MAY 2009
TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS (continued)
Unless otherwise noted, these specifications apply for V
DD
= 2.7V to 5.5V. Boldface limits apply for T
A
= T
J
=T
MIN
to T
MAX
;
all other limits T
A
= T
J
= +25°C, unless otherwise noted. T
A
is the ambient temperature. T
J
is the junction temperature.
LM73C Units
Parameter Conditions Typical
(1)
Limits
(2)
(Limit)
Temperature Conversion RES1 Bit = 0, RES0 Bit = 0 10.1 14 ms (max)
Time
(4)
RES1 Bit = 0, RES0 Bit = 1 20.2 28 ms (max)
RES1 Bit = 1, RES0 Bit = 0 40.4 56 ms (max)
RES1 Bit = 1, RES0 Bit = 1 80.8 112 ms (max)
Quiescent Current Continuous Conversion Mode, SMBus inactive 320 495 µA (max)
Shutdown, bus-idle timers on 120 175 µA (max)
Shutdown, bus-idle timers off 1.9 8 µA (max)
Power-On Reset Threshold Measured on V
DD
input, falling edge 0.9 V (min)
(4) This specification is provided only to indicate how often temperature data is updated. The LM73 can be read at any time without regard
to conversion state (and will yield last conversion result).
LOGIC ELECTRICAL CHARACTERISTICS - DIGITAL DC CHARACTERISTICS
Unless otherwise noted, these specifications apply for V
DD
= 2.7V to 5.5V. Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= +25°C, unless otherwise noted. T
A
is the ambient temperature. T
J
is the junction temperature.
Symbol Parameter Conditions Typical
(1)
Limits
(2)
Units
(Limit)
SMBDAT, SMBCLK INPUTS
V
IH
Logical “1” Input Voltage 0.7*V
DD
V (min)
V
IL
Logical “0” Input Voltage 0.3*V
DD
V (max)
V
IN;HYST
SMBDAT and SMBCLK Digital Input 0.07*V
DD
V
Hysteresis
I
IH
Logical “1” Input Current V
IN
= V
DD
0.01 2 µA (max)
I
IL
Logical “0” Input Current V
IN
= 0 V –0.01 –2 µA (max)
C
IN
Input Capacitance 5 pF
SMBDAT, ALERT OUTPUTS
I
OH
High Level Output Current V
OH
= V
DD
0.01 2 µA (max)
V
OL
SMBus Low Level Output Voltage I
OL
= 3 mA 0.4 V (max)
ADDRESS INPUT
V
IH;ADDRESS
Address Pin High Input Voltage V
DD
minus 0.100 V (min)
V
IL;ADDRESS
Address Pin Low Input Voltage 0.100 V (max)
I
IH;ADDRESS
Address Pin High Input Current V
IN
= V
DD
0.01 2 µA (max)
I
IL;ADDRESS
Address Pin Low Input Current V
IN
= 0 V –0.01 –2 µA (max)
(1) Typicals are at T
A
= 25°C and represent most likely parametric norm.
(2) Limits are ensured to TI's AOQL (Average Outgoing Quality Level).
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