7v to 5.5v) – Rainbow Electronics DS1620 User Manual
Page 11
DS1620
11 of 13
DC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; V
DD
=2.7V to 5.5V)
PARAMETER
SYMBOL
CONDITION
MIN
MAX
UNITS
NOTES
Thermometer Error
T
ERR
0°C to +70°C
-55°C to +0°C
and 70°C to
125°C
±½ °C
See Typical Curve
10, 11
Logic 0 Output
V
OL
0.4
V
3
Logic 1 Output
V
OH
2.4
V
2
Input Resistance
R
I
RST
to GND
DQ, CLK to V
DD
1
1
M
Ω
M
Ω
Active Supply Current
I
CC
0°C to +70°C
1
mA
4, 5
Standby Supply Current
I
STBY
0°C to +70°C
1
µA
4, 5
SINGLE CONVERT TIMING DIAGRAM (STAND-ALONE MODE)
AC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; V
DD
=2.7V to 5.5V)
PARAMETERS
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Temperature Conversion Time
T
TC
400
1000
ms
Data to CLK Setup
t
DC
35
ns
6
CLK to Data Hold
t
CDH
40
ns
6
CLK to Data Delay
t
CDD
100
ns
6, 7, 8
CLK Low Time
t
CL
285
ns
6
CLK High Time
t
CH
285
ns
6
CLK Frequency
f
CLK
DC
1.75
MHz
6
CLK Rise and Fall
t
R
, t
F
500
ns
RST
to CLK Setup
t
CC
100
ns
6
CLK to
RST
Hold
t
CCH
40
ns
6
RST
Inactive Time
t
CWH
125
ns
6, 9
CLK High to I/O High-Z
t
CDZ
50
ns
6
RST
Low to I/O High-Z
t
RDZ
50
ns
6
Convert Pulse Width
t
CNV
250 ns
500 ms
NV Write Cycle Time
t
WR
10
50
ms
12
AC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; V
DD
=2.7V to 5.5V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
C
I
5
pF
I/O Capacitance
C
I/O
10
pF
t
CNV
CONV