Datasheet

DS75
5 of 14
AC ELECTRICAL CHARACTERISTICS (-55°C to +125°C; 2.7V ≤ V
DD
≤ 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Resolution 9 12 bits
9-bit
conversions
150
10-bit
conversions
300
11-bit
conversions
600
Temperature
Conversion Time
t
CONVT
12-bit
conversions
1200
ms
SCL Frequency f
SCL
400 KHz
Bus Free Time
Between a STOP and
START Condition
t
BUF
1.3
μs
5
START and Repeated
START Hold Time
from Falling SCL
t
HD:STA
0.6
μs
5, 6
Low Period of SCL t
LOW
1.3
μs
5
High Period of SCL t
HIGH
0.6
μs
5
Repeated START
Condition Setup Time
to Rising SCL
t
SU:STA
0.6
μs
5
Data-Out Hold Time
from Falling SCL
t
HD:DAT
0 0.9
μs
5
Data-In Setup Time to
Rising SCL
t
SU:DAT
100 ns 5
Rise Time of SDA and
SCL
t
R
20 + 0.1C
B
1000
ns 5, 7
Fall Time of SDA and
SCL
t
F
20 + 0.1C
B
300 ns 5, 7
STOP Setup Time to
Rising SCL
t
SU:STO
0.6
μs
5
Capacitive Load for
Each Bus Line
C
B
400 pF
Input Capacitance C
I
5 pF
NOTES:
1. All voltages are referenced to ground.
2. Internal heating caused by O.S. loading will cause the DS75 to read approximately 0.5°C higher if
O.S. is sinking the max rated current.
3. I
DD
specified with O.S. pin open.
4. I
DD
specified with V
DD
at 5.0V and SDA, SCL = 5.0V, 0°C to 70°C.
5. See Timing Diagram in Figure 2. All timing is referenced to 0.9 x V
DD
and 0.1 x V
DD
.
6. After this period, the first clock pulse is generated.
7. For example, if C
B
= 300pF, then t
R
[min] = t
F
[min] = 50ns.