Datasheet

Two-wire Digital Temperature Sensor
5
8585B–SEEPR–8/10
Table 2-2. DC Characteristics continued
Symbol Parameter Test Condition Min Typ Max Units
Temperature Sensor Accuracy
T
ACCUR
+75°C < Ta < +95°C -1.0 ±0.5 +1.0 °C
T
ACCUR
+40°C < Ta < +125°C -2.0 ±1 +2.0 °C
T
ACCUR
-20°C < Ta = +125°C -3.0 ±2 +3.0 °C
T
CONV
Temp. Sensor Conversion Time 75 125 ms
T
RES
Temp. Sensor Resolution 0.25 °C
Note: 1. V
il
min and V
ih
max are reference only and are not tested
2. Sensor in Shutdown Mode
Table 2-3. AC Characteristics
Applicable over recommended operating range:
T
AI
= –20°C to +125°C, V
CC
= +2.7v to +3.6V, CL = 1 TTL Gate and 100µF (unless otherwise noted)
Symbol Parameter Min Max Min Max Units
f
SCL
Clock Frequency, SCL 10
(2)
100 10
(2)
400 kHz
t
LOW
Clock Pulse Width Low 4.7 1.2
µs
t
HIGH
Clock Pulse Width High 4.0 0.6
µs
t
I
Noise Suppression Time
(1)
100 50 ns
T
HD.DI
Data In Hold Time 0 0.0 us
t
BUF
Time the bus must be free before a new transmission
can start
(1)
4.7 1.2
µs
t
HD.STA
Start Hold Time 4.0 0.6
µs
t
SU.STA
Start Set-up Time 4.7 0.6
µs
t
HD.DAT
Data In Hold Time 0 0.0
µs
t
SU.DAT
Data In Set-up Time 200 100 ns
t
R
Inputs Rise Time
(1)
1.0 0.3
µs
t
F
Inputs Fall Time
(1)
300 300 ns
t
SU.STO
Stop Set-up Time 4.7 0.6
µs
t
DH
Data Out Hold Time 100 50 ns
t
OUT
SMBus Timeout Time 25 35 25 35 ms
Note: 1. This parameter is ensured by characterization only
2. The minimum frequency is specified at 10Khz to avoid activating the timeout feature